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Pipistrel Virus SW 121 Pilot Operating Handbook

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Section 0
Foreword
Registration:
Serial No.:
Signature:
Authority:
Stamp:
Date of Approval:
The airplane must be operated in compliance with
information and limitations contained herein.
POH-121-00-40-001_A02
Virus SW 121
Pipistrel d.o.o. Ajdovščina
Pilot Operating Handbook
Virus SW 121
____________________________
____________________________
____________________________
EASA
____________________________
____________________________
Operating Handbook
Pilot
0-1

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Summary of Contents for Pipistrel Virus SW 121

  • Page 1 Section 0 Pilot Virus SW 121 Foreword Operating Handbook Pipistrel d.o.o. Ajdovščina Pilot Operating Handbook Virus SW 121 Registration: ____________________________ Serial No.: ____________________________ Signature: ____________________________ Authority: EASA Stamp: ____________________________ Date of Approval: ____________________________ The airplane must be operated in compliance with information and limitations contained herein.

  • Page 2: Table Of Contents

    Pilot Section 0 Virus SW 121 Foreword Operating Handbook Pipistrel d.o.o. Ajdovščina Table of Contents Section Contents Foreword General Limitations Emergency Procedures Normal Procedures Performance Data Weight and Balance Airplane Description Handling, Servicing and Maintenance Supplements Notes Special statements in the Airplane Flight Manual concerning the safety or...
  • Page 3 Section 0 Pilot Virus SW 121 Foreword Operating Handbook Pipistrel d.o.o. Ajdovščina Index of Revisions Reason for Affected Rev. Description Authority revision pages First Issue EASA 1st Revision Pre-TC Updates EASA 2nd Revision Pre-TC Updates EASA List of Effective Pages...
  • Page 4 Pilot Section 0 Virus SW 121 Foreword Operating Handbook Pipistrel d.o.o. Ajdovščina Page Revision Page Revision Page Revision 2 - 13 3 - 1 4 - 1 2 - 14 3 - 2 4 - 2 2 - 15 3 - 3...
  • Page 5 Section 0 Pilot Virus SW 121 Foreword Operating Handbook Pipistrel d.o.o. Ajdovščina Page Revision Page Revision Page Revision 5 - 1 6 - 1 7 - 1 5 - 2 6 - 2 7 - 2 5 - 3 6 - 3...
  • Page 6 Pilot Section 0 Virus SW 121 Foreword Operating Handbook Pipistrel d.o.o. Ajdovščina Page Revision Page Revision Page Revision 7 – 30 8 - 1 9 - 1 7 – 31 8 - 2 9 - 2 7 – 32 8 - 3 7 –...

  • Page 7: Foreword

    Section 0 Pilot Virus SW 121 Foreword Operating Handbook Pipistrel d.o.o. Ajdovščina 3 - 1 4 - 1 5 - 1 3 - 2 4 - 2 5 - 2 3 - 3 4 - 3 5 - 3 3 - 4...
  • Page 8 Section 1 Pilot Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina Section 1 General Table of Contents Introduction ..............2 Description ..............2 Certification Basis ............3 Three View Drawing ............ 3 Dimensions and Weights ..........4 Systems ..............5 1.6.1...

  • Page 9: Introduction

    Description The Virus SW 121 is a two-seat aircraft of composite construction. The aircraft is arranged as a high wing mono-plane with cantilevered wings and a conventional empennage with a T-tail. The aircraft has a tricycle landing gear.

  • Page 10: Certification Basis

    Section 1 Pilot Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina Certification Basis Type certification is based on EASA CS-LSA Light Sport Aircraft Certicication Specifications. Operation of the basic version is restricted to VFR-day and a maximum takeoff weight of 600 kg.

  • Page 11: Dimensions And Weights

    Pilot Section 1 Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina Dimensions and Weights Basic Dimensions Length 6.45 m 21.15 ft Span 10.70 m 35.6 ft Height 2.06 m 6.75 ft Wing Area 9.51 m² 102.4 ft² Span 10.71 m 35.10 ft...

  • Page 12: Systems

    Section 1 Pilot Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina Systems 1.6.1 Powerplant The engine installed is Rotax 912 S3 providing 73.5 kW takeoff power. All limits as defined by the engine manufacturer apply. The engine can be operated with AVGAS, MOGAS or car fuel (min RON 95;...

  • Page 13: Landing Gear

    Pilot Section 1 Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina 1.6.4 Landing Gear The airplane has as a tricycle type fixed landing gear. The nose wheel is steerable via rudder pedals. The main wheels are equipped with hydraulic brakes, which are operated via toe-pedals.

  • Page 14: Symbols, Abbreviations And Terminology

    Section 1 Pilot Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina Symbols, Abbreviations and Terminology General Airspeed Terminology and Symbols KCAS Knots Calibrated Airspeed is the indicated airspeed corrected for position and instrument error. Calibrated airspeed is equal to true airspeed in standard atmosphere at sea level.
  • Page 15 Pilot Section 1 Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina Stalling Speed is the minimum steady flight speed at which the aircraft is controllable in the landing configuration (100% flaps) at the most unfavorable weight and balance. Best Angle of Climb Speed is the speed at which the airplane will obtain the highest altitude in a given horizontal distance.
  • Page 16 Section 1 Pilot Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina meteorological sources. It is expressed in either degrees Celsius or degrees Fahrenheit. Pressure Altitude is the altitude read from the altimeter when the altimeter’s barometric adjustment has been set to 1013 mb (29.92 in.Hg) corrected for position and instrument error.
  • Page 17 Pilot Section 1 Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina maximum weight has the capability of climbing at a 100 ft/min. Unusable Fuel is the quantity of fuel that cannot be used in flight. Usable Fuel is the fuel available for flight planning.

  • Page 18: Conversion Table

    Section 1 Pilot Virus SW 121 General Operating Handbook Pipistrel d.o.o. Ajdovščina scales for weighing. Tare includes blocks, shims, and chocks. Tare weight must be subtracted from the associated scale reading Conversion Table 1 bar 14.5037 psi 1 psi 0.0689 bar 1 mm 0.0016 in...

  • Page 19: Table Of Contents

    Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina Section 2 Limitations Table of Contents 2.1 Introduction ..............3 2.2 Airspeed Limitations ............3 2.3 Airspeed Indicator Markings ........... 4 2.4 Engine Limitations ............5 2.5 Engine Instrument Markings ........... 6 2.6 Weight and Center of Gravity Limits .......
  • Page 20 Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.17 PFD / Autopilot Restrictions .......... 10 2.18 Placards................ 11 2.18.1 Placards (External) ........... 11 2.18.2 Placards (Engine Compartment) ......13 2.18.3 Placards (Instrument Panel) ........13 2.18.4 Placards (Center Console) ........

  • Page 21: Introduction

    Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina Introduction This section provides operating limitations, instrument markings and basic placards necessary for the safe operation of the airplane and its standard systems and equipment. Refer to section 9 for operating limitations for optional equipment.

  • Page 22: 2.3 Airspeed Indicator Markings

    Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina Maximum Flap Extended Speed is the highest speed permissible with wing flaps extended at (+1) stage, 65 KIAS for (+2) stage, 135 for (0) stage. Maximum Airbrakes Extended Speed is the highest speed permissible with the airbrakes extended.

  • Page 23: 2.4 Engine Limitations

    Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.4 Engine Limitations Engine (Rotax 912 S3) Maximum Power Rating .......73.5 kW / 5800 RPM max 5 min Maximum Continuous Power ........... 69 kW / 5500 RPM Normal RPM ..............1750 - 5500 RPM Maximum RPM ................5800 RPM...

  • Page 24: 2.5 Engine Instrument Markings

    Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.5 Engine Instrument Markings Red Line Green Arc Yellow Arc Red Line Instrument (Range) Minimum Normal Caution Maximum Tachometer –– 1750-5500 5500-5800 5800 (0 - 6000 RPM) Coolant Temp.

  • Page 25: 2.6 Weight And Center Of Gravity Limits

    Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.6 Weight and Center of Gravity Limits Maximum takeoff weight ............. 600 kg / 1323 lbs Maximum landing weight ............ 600 kg / 1323 lbs Maximum zero fuel weight ..........555 kg / 1221 lbs Design empty weight (typical) ..........

  • Page 26: 2.9 Oil/Coolant

    Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.9 Oil/Coolant Approved oil ............AeroShell Oil Sport PLUS 4 (and equivalents as per Rotax Specification) Maximum oil capacity ................. 3.5 liter Minimum oil required ............marked on dipstick Approved coolant ..........

  • Page 27: 2.13 Temperature Limits

    Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.13 Temperature Limits The structure has been tested to + 55C. Refer to AMM chapter 4 for approved colors and makings. 2.14 Minimum Flight Crew The minimum flight crew is one pilot.

  • Page 28: 2.16.1 Restrictions For Aerotowing Operations

    Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.16.1 Restrictions for Aerotowing Operations Take-off weight to be kept below 500 kg. Maximum weight of towed glider 600 kg. Maximum weak-link rating 300 kg. 2.17 PFD / Autopilot Restrictions No autopilot operations with the PFD inoperative.

  • Page 29: Placards (External)

    Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.18 Placards 2.18.1 Placards (External) Next to each wing fuel tank filler neck: Next to each wing fuel tank filler neck: Next to each door, top aft corner:...
  • Page 30 Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina Next to wheels: On each main landing gear wheel fairing: Next to door opening latches: APPROVED POH-121-00-40-001_A02 2-12...

  • Page 31: Placards (Instrument Panel)

    Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina Next to fuel drain: 2.18.2 Placards (Engine Compartment) On coolant bottle, oil bottle: 2.18.3 Placards (Instrument Panel) APPROVED POH-121-00-40-001_A02 2-13...
  • Page 32 Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina APPROVED POH-121-00-40-001_A02 2-14...

  • Page 33: Placards (Center Console)

    Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.18.4 Placards (Center Console) Next to propeller lever: Next to choke and throttle levers: On flap lever (2x): Next to elevator trim switch: Next to cabin-air control lever:...

  • Page 34: Placards (Cabin)

    Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina Next to parking brake lever: 2.18.5 Placards (Cabin) Next to fuel level indicators: Fuel selector: Next to microphone jacks: Next to headphone jacks: APPROVED POH-121-00-40-001_A02 2-16...
  • Page 35 Section 2 Pilot Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina In front of control sticks (rudder pedal adjustment, 2x): Below each door to depict door handle operation: On upper tube in front or pilot: On inside of luggage compartment door:...

  • Page 36: Placards (Ballistic Parachute Rescue System)

    Pilot Section 2 Virus SW 121 Limitations Operating Handbook Pipistrel d.o.o. Ajdovščina 2.18.6 Placards (Ballistic Parachute Rescue System) On/adjecent to parachute rescue system hatch and over rocket position: Next to doors: Next to rocket exhaust (bottom of fuselage): Next to activation handle (cockpit):...

  • Page 37: Emergency Procedures

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Section 3 Emergency Procedures Table of Contents Introduction ................. 3 Airspeeds for Emergency Operations ......... 4 Ground Emergencies ............5 3.3.1 Engine Fire During Engine Start ......... 5 3.3.2...
  • Page 38 Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.5.3 Cockpit Fire in Flight ..........14 Spins ................15 BPRS Deployment ............17 Landing Emergencies ............19 3.8.1 Emergency Landing without Engine Power ....19 3.8.2 Ditching ..............

  • Page 39: Introduction

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Introduction This section provides procedures for handling emergencies and critical flight situations. Although emergencies caused by airplane, systems, or engine malfunctions are extremely rare, the guidelines described in this section should be considered and applied as necessary should an emergency arise.

  • Page 40: Airspeeds For Emergency Operations

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Take Appropriate Action In most situations, the procedures listed in this section will either correct the aircraft problem or allow safe recovery of the aircraft. Follow them and use good pilot judgment.

  • Page 41: Ground Emergencies

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Ground Emergencies 3.3.1 Engine Fire During Engine Start A fire during engine start may be caused by fuel igniting in the fuel induction system. If this occurs, attempt to draw the fire back into the engine by continuing to crank the engine.

  • Page 42: In-Flight Emergencies

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina In-Flight Emergencies 3.4.1 Engine Failure at Takeoff (Low Altitude) If the engine fails immediately after becoming airborne, abort with landing on the the runway if possible. If altitude attained precludes a runway stop but is not sufficient to restart the engine, lower the nose to maintain airspeed and establish a glide attitude.

  • Page 43: Engine Failure In Flight

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.4.2 Engine Failure in Flight It the engine fails at altitude, pitch as necessary to establish best glide speed. While gliding toward a suitable landing area, attempt to identity the cause of the failure and correct it.

  • Page 44: Engine Start In Flight

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.4.3 Engine Start in Flight The following procedures address the most common causes for engine loss. Switching tanks and cranking will enhance starting if fuel contamination was the cause of the failure.

  • Page 45: Engine Partial Power Loss

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.4.4 Engine Partial Power Loss Indications of a partial power loss include fluctuating RPM, reduced or fluctuating manifold pressure, low oil pressure, high oil temperature and a rough-running engine.
  • Page 46 Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Fuel Selector ............SWITCH TANKS Selecting the opposite fuel tank may resolve the problem if fuel starvation or contamination in one tank was the problem. Throttle Lever ................. SWEEP Move the Throttle Lever through the complete range to obtain the best operation possible.

  • Page 47: Low Oil Pressure

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.4.5 Low Oil Pressure If low oil pressure is accompanied by a rise in oil temperature, the engine has probably lost a significant amount of its oil and engine failure may be imminent.

  • Page 48: Propeller Governor Failure

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.4.6 Propeller Governor Failure If the RPM does not respond to propeller lever movement or overspeeds, the most likely cause is a faulty governor or an oil system malfunction. If moving the power lever is difficult or rough, suspect a propeller lever linkage failure and perform the Propeller Lever Linkage Failure checklist.

  • Page 49: Smoke In Cockpit

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Smoke in cockpit If smoke and/or fumes are detected in the cabin, check the engine parameters for any sign of malfunction. If a fuel leak has occurred, actuation of electrical components may cause a fire.

  • Page 50: Wing Fire In Flight

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.5.2 Wing Fire in Flight NAV/STROBE Light Switch ............OFF Fuel level light ................OFF If possible, side slip to keep flames away from fuel tank and cabin.

  • Page 51: Spins

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina CAUTION! When Master Switch is turned OFF, the engine will continue to run but the power to the Electronic Flight Displays will be cut. Refer to analogue instruments for the continuation of flight.
  • Page 52 Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina In any case, spin recovery technique is classic: Throttle IDLE. Apply full rudder deflection in direction opposite the spin. Lower the nose towards the ground to build speed (Stick forward).

  • Page 53: Bprs Deployment

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina BPRS Deployment The Ballistic Parachute Rescue System (BPRS) should be activated in the event of a life-threatening emergency where BPRS deployment is determined to be safer than continued flight and landing.
  • Page 54 Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina WARNING! Rapidly pulling the activation T-handle will greatly increase the pull forces required to activate the rocket. Use a firm and steady pulling motion. After Deployment: Fuel Selector ................OFF Shutting off fuel supply to engine will reduce the chances of fire resulting from impact at touchdown.

  • Page 55: Landing Emergencies

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Landing Emergencies If all attempts to restart the engine failure and a forced landing is imminent, select a suitable field and prepare for the landing. If flight conditions or terrain does not permit a safe landing, BPRS deployment may be required.

  • Page 56: Ditching

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.8.2 Ditching Radio ..........Transmit (121.5 MHz) MAYDAY giving location and intentions Transponder ..............SQUAWK 7700 BPRS .................... PULL Doors ........... UNLATCH before impact with water Airplane ................EVACUATE Flotation Devices ....

  • Page 57: Landing With A Defective Main Landing Gear Tire

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.8.4 Landing with a Defective Main Landing Gear Tire Land the airplane at the edge of the runway that is located on the side of the intact tire, so that changes in direction during roll-out due to the braking action of the defective tire can be corrected on the runway.

  • Page 58: Pfd-Malfunction

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina PFD-Malfunction In the unlikely event of a PFD failure, the pilot may lose the ability to control the autopilot through the PFD controls. If this malfunction occurs, the PFD...

  • Page 59: Generator Failure

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Generator Failure 3.10 Steady illumination of the “GENERATOR FAIL” caution light indicates a failure of the generator. The most likely the cause of the generator failure is a wiring fault, a malfunctioning generator, or a malfunctioning voltage regulator.

  • Page 60: Engine Indicating System Failure

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Engine Indicating System Failure 3.11 In the event of a Data Acquisition Unit failure, the engine indications displayed on the MFD and PFD will be disabled. In the event of Data Acquisition Unit failure, pull and reset the EIS circuit breaker.

  • Page 61: Pitot Tube Blocked

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 3.13.2 Pitot Tube Blocked If only the airspeed indicator is providing erroneous information, and in icing conditions, the most probable cause is pitot ice. If setting pitot heat ON does not correct the problem, descend into warmer air.

  • Page 62: Exceeding

    Pilot Section 3 Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina WARNING! After pulling the battery disconnect switch an engine restart will no longer be possible! Exceeding V 3.16 Should the VNE be exceeded, reduce airspeed slowly and continue flying using gentle control deflections.

  • Page 63: Aerotowing

    Section 3 Pilot Virus SW 121 Emergency Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Aerotowing 3.18 All emergencies related to the engine and systems performance to be handled as per prior paragraphs, with pilot’s consideration when to disconnect glider and/or drop the rope.

  • Page 64: Normal Procedures

    Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Section 4 Normal Procedures Table of Contents Introduction ..............3 Airspeeds for Normal Operation ........3 Preflight Inspection ............3 4.3.1 Preflight Walk-Around ..........4 Starting Engine............8 4.4.1...
  • Page 65 Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Climbing ..............14 Cruise ................ 14 Descent/Approach ............. 15 Before Landing ............15 4.10 Landing ..............16 4.11 Balked Landing ............17 4.12 After Landing ............. 17 4.13 Shut Down ..............

  • Page 66: Introduction

    Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Introduction This section provides amplified procedures for normal operation. Airspeeds for Normal Operation Unless otherwise noted, the following speeds are based on a maximum mass of 600 kg and may be used for any lower actual mass. However, to...

  • Page 67: Preflight Walk-Around

    Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Note: Throughout the walk-around: check all visible hinges, hinge pins, and bolts for security; check skin for damage, condition, and evidence of cracks or delaminations, check all control surfaces for proper movement and excessive free play;...
  • Page 68 Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 2. Left Fuselage 1. COM antenna (top) ........Condition and attachment 2. Wing / fuselage seal ..............Check 3. XPDR antenna (underside) ....... Condition and attachment 4. Baggage compartment .......... Baggage is secure 5.
  • Page 69 Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 5. Landing gear ............General condition 6. Tire ............Condition, inflation, and wear 7. Wheel and brakes ....Fluid leaks, evidence of overheating, ............general condition and security 8.
  • Page 70 Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 12. Left Wing Tip 1. Tip ................... Attachment 2. Strobe, NAV light and lens ......Condition and security 13. Left Wing Trailing Edge 1. Flaperon ........Condition, security and movement 2.

  • Page 71: Starting Engine

    Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Starting Engine 4.4.1 Before Starting Engine Preflight Inspection ............Completed Mass and Balance ..........Verity within limits Fuel quantity................ Sufficient Emergency Equipment ............ON board Passengers ................Briefed BPRS Safety Pin ...............

  • Page 72: Before Taxiing

    Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Propeller Area ................Clear Power Lever ..............Open 10 mm Oil Pressure Indication ............Available Ignition Switch ......Start (Release after engine starts) CAUTION! Limit cranking to intervals of 20 seconds with a 20 second cooling period between cranks.

  • Page 73: Before Takeoff

    Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina increased brake temperature and may in extreme cases cause fire. Taxi over loose gravel at low engine speed to avoid damage to the propeller tips.. WARNING! Maximum continuous engine speed for taxiing is 1800 RPM on flat, smooth, hard surfaces.
  • Page 74 Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Seat Belts and Shoulder Harness .......... Secure Flaps ................... (+1) Trim .................. Set neutral Fuel Selector ..............Fullest tank 10. Fuel Quantity ................. Confirm 11. Choke ................Verify closed 12.

  • Page 75: Takeoff

    Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Takeoff 4.5.1 Power Check Check full-throttle engine operation early in takeoff run. The engine should run smoothly and turn approximately 5700 RPM. All engine parameters should read in the green. If power is not developed, abort take-off.

  • Page 76: Normal Takeoff

    Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina 4.5.3 Normal Takeoff Brakes ..........Release (Steer with rudder only) Propeller lever ..............Full forward Throttle lever ..............Full forward Engine Parameters ..............Check Airspeed indication ..............Check Elevator Control ......

  • Page 77: Climbing

    Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Climbing Normal climbs are performed flaps UP (0°) and full power at speeds 5 to 10 knots higher than best rate-of-climb speeds. These higher speeds give the best combination of performance, visibility and engine cooling.

  • Page 78: Descent/Approach

    Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina WARNING! The fuel tanks must be changed every 30 min. Otherwise the airplane may roll into the direction of the fuller fuel tank. WARNING! Always grasp stick firmly before disengaging the autopilot to prevent advert effects of improperly set elevator trim.

  • Page 79: Landing

    Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Landing 4.10 CAUTION! Landings should be made with full flaps and airbrakes fixed in ½ extended position. Glideslope should be controlled with throttle. Landings with less than full flaps are recommended in crosswinds or if the flaps fail to deploy or to extend the aircraft’s glide distance due to engine malfunction.

  • Page 80: Balked Landing

    Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Crosswind Landing Normal crosswind landings are made with (+1) flaps. Avoid prolonged slips. After touchdown, hold a straight course with rudder and brakes as required. The maximum allowable crosswind velocity is dependent upon pilot capability as well as aircraft limitations.

  • Page 81: Shut Down

    Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Shut Down 4.13 1. Green electrical switches ............All OFF 2. Throttle lever ................. IDLE 3. Ignition Switch ................OFF 4. BPRS safety pin ................Insert 5. All Switches .................. OFF 6.

  • Page 82: Aerotowing

    Section 4 Pilot Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Aerotowing 4.16 This paragraph contains recommendations and establishes guidelines for operational consideration. Note: Total take-off distance is limited by certification basis to be less than 500 m. This is achieved by limiting the take-off mass to 500 kg and mass of towed glider to 600 kg.
  • Page 83 Pilot Section 4 Virus SW 121 Normal Procedures Operating Handbook Pipistrel d.o.o. Ajdovščina Reaching safe altitude (min 300 ft): 7. Engine power .......... Adjust to 27 InHg, 5500 RPM 8. Turn crosswind ..........Maximum bank angle 20° 9. Flaps ....................(0) 10.
  • Page 84 Section 5 Pilot Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Section 5 Performance Data Table of Contents Introduction ..............2 Outside Air Temperature for ISA-Condition ....3 Wind Component ............4 Airspeed Calibration ............ 5 Stall Speed ..............6 Take-Off ..............

  • Page 85: Introduction

    Pilot Section 5 Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Introduction The performance tables and diagrams on the following pages show the performance of the airplane. The data presented in these tables and diagrams has been derived from test–flights using an airplane and engine in good operating condition, and was corrected to standard atmospheric conditions 15˚...

  • Page 86: Outside Air Temperature For Isa-Condition

    Section 5 Pilot Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Outside Air Temperature for ISA-Condition Pressure ISA-40°C ISA-20°C ISA+10°C ISA+20°C Altitude [ft] 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000...

  • Page 87: Wind Component

    Pilot Section 5 Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Wind Component Example: Runway Heading 10° Wind Direction 60° Wind Velocity 15 Knots APPROVED POH-121-0040-001-A02...

  • Page 88: Airspeed Calibration

    Section 5 Pilot Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Airspeed Calibration Airspeed Calibration Conditions: Power: Power for level flight or max. continuous power, whichever is less. Note: Indicated airspeed values assume zero instrument error. KCAS Flaps...

  • Page 89: Stall Speed

    Pilot Section 5 Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Stall Speed Conditions: Power: Idle Propeller: Full forward (fine pitch) Note: The recovery altitude necessary is very dependent on the tempo of recovery. Typical loss of altitude for recovery:...

  • Page 90: Take-Off

    Section 5 Pilot Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Take-Off Conditions: Power: Throttle Full Open, Propeller pitch Full Forward (Fine) Flaps: (+1) Runway: Dry, paved and level Wind: Calm Correction Factors: Headwind: Subtract 10% for each 12 knots headwind.
  • Page 91 Pilot Section 5 Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Pressure Distance Temperature Altitude [ft] 0°C 10°C 20°C 30°C 40°C 11°C Ground roll 2000 50 ft Pressure Distance Temperature Altitude [ft] 0°C 10°C 20°C 30°C 40°C 7°C...

  • Page 92: Rate Of Climb (V Y )

    Section 5 Pilot Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Rate of Climb (V Conditions: Power: Throttle Wide Open (Full forward), Propeller pitch Full Forward (Fine) Flaps: Airspeed: Best rate of climb: 78 KIAS (V Pressure Climb...

  • Page 93: Climb Gradient (V )

    Pilot Section 5 Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Climb Gradient (V Note: Angle of climb data shown is for information only, appropriate pilot procedures should be followed for non-ISA conditions. Pressure Climb Weight Climb Angle / Gradient...

  • Page 94: 5.9 Cruising - Power Setting, Fuel Consumption

    Section 5 Pilot Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina 5.9 Cruising - Power Setting, Fuel Consumption Conditions: Weight: 600 kg Temperature: Wind: Zero Total Fuel: 99 Liter Note: Fuel remaining for cruise is equal to 99 liters usable:...
  • Page 95 Pilot Section 5 Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Parameters Pressure Altitude KTAS FF (liter/h) (%MCP) Not achievable Not achievable 25.2 5500 25.3 19.6 4000 ft 5500 24.3 16.8 5100 23.3 15.6 4600 23.3 Parameters Pressure...

  • Page 96: 5.10 Landing

    Section 5 Pilot Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Parameters Pressure Altitude KTAS FF (liter/h) (%MCP) Not achievable Not achievable 10,000 ft 5300 19.7 22.4 5500 20.3 19.2 Parameters Pressure Altitude KTAS FF (liter/h) (%MCP) Not achievable...
  • Page 97 Pilot Section 5 Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Correction Factors: Headwind: Subtract 10% from table distances for each 13 knots headwind. Tailwind: Add 10% to table distances for each 2 knots tailwind up to 10 knots.

  • Page 98: 5.11 Noise Characteristics

    Section 5 Pilot Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina Pressure Distance Temperature Altitude [ft] 0°C 10°C 20°C 30°C 40°C 11°C Ground roll 2000 Total over 50 ft Pressure Distance Temperature Altitude [ft] 0°C 10°C 20°C 30°C 40°C...

  • Page 99: 5.12 Aerotowing Performance

    Pilot Section 5 Virus SW 121 Performance Data Operating Handbook Pipistrel d.o.o. Ajdovščina 5.12 Aerotowing Performance 5.12.1 Take-off Data is valid for a hard-surface runway. Towed Ground roll Take-off distance (ISA – Sea level) 15m obstacle Glider Mass (ISA – Sea level) 5.12.2 Climb...

  • Page 100: Weight And Balance

    Section 6 Pilot Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina Section 6 Weight and Balance Table of Contents Introduction ............2 Airplane Weighing Procedure ........ 2 C.G. - Calculation ........... 5 Equipment List ............6 Airplane Weight and Balance Record ....8...

  • Page 101: Introduction

    Pilot Section 6 Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina Introduction This section describes the procedure for establishing the basic empty weight and moment of the airplane. Sample forms are provided for reference. Procedures for calculating the weight and moment for various operations are also provided.
  • Page 102 Section 6 Pilot Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina 4. Measuring: 1. Drop a plumb bob from datum (each wing root leading edge at root) and stretch a line between the plumb bombs and mark the position of the line at the airplane center line.
  • Page 103 Pilot Section 6 Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina 5. Calculation: Summary (Weights) G1 = G MainWheelLeft MainWheelRight G2 = G NoseWheel Max Takeoff Mass (MTOM) 600 kg Aircraft Empty Weight G Full fuel weight G...

  • Page 104: Calculation

    Section 6 Pilot Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina C.G. - Calculation Weight Moment [kg] [mm] [kgmm] Typical empty weight Pilot Co-pilot Fuel (Left wing tank) Fuel (Right wing tank) Baggage compartment 1160 Instrument panel...

  • Page 105: Equipment List

    Pilot Section 6 Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina Equipment List System, Instrument, Required for Equipment Kind of Operation Weight and Bal. Weight Night [kg] [mm] VHF COM / (NAV) — — — Battery —...
  • Page 106 Section 6 Pilot Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina System, Instrument, Kind of Operation Weight and Bal. Equipment Weight Night [kg] [mm] Instrument Lights — — — Navigation Lights — — — Landing Light —...

  • Page 107: Airplane Weight And Balance Record

    Pilot Section 6 Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina Airplane Weight and Balance Record Weight Change Running Basic Description added (+) or removed (-) Empty Weight Date of Article Weight Moment Weight Moment or Modification...
  • Page 108 Section 6 Pilot Virus SW 121 Weight and Balance Operating Handbook Pipistrel d.o.o. Ajdovščina Intentionally left blank APPROVED POH-121-00-40-001_A02...

  • Page 109: Airplane Description

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Section 7 Airplane Description Table of Contents Introduction ............5 Aircraft Structure ........... 5 7.2.1 Fuselage ..............5 7.2.2 Wings ................6 7.2.3 Empennage ..............6 Flight Control System ..........7 7.3.1...
  • Page 110 Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Airplane Cabin............. 11 7.5.1 Cabin Doors ..............11 7.5.2 Ventilation ..............12 7.5.3 Seats ................12 7.5.4 Baggage Compartment ..........12 7.5.5 Cabin Safety Equipment ..........13 Powerplant ............
  • Page 111 Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook 7.8.5 Warning Lights ............23 7.8.6 Circuit Breakers and Fuses ........24 7.8.7 Miscellaneous Components ........24 Lightning ............. 25 7.9.1 Exterior Lightning ............25 7.9.2 Interior Lightning ............25 7.10 Environmental System ........
  • Page 112 Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina 7.14.8 Magnetic Compass ............. 37 7.15 Avionics System ..........38 7.15.1 Communication (COM) Transceivers ......39 7.15.2 Navigation (NAV) Transceivers (Option) ....40 7.15.3 Transponder ..............40 7.15.4...

  • Page 113: Introduction

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Introduction This section provides a basic description and operation of the standard airplane and its systems. Optional equipment described within this section is identified as optional. Note: Some optional equipment, primarily avionics, may not be described in this section.

  • Page 114: Wings

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Wings 7.2.2 The detachable wing is a single spar cantilever wing. The left and right wing are connected by two bolts through the spar ends. The wing structure is made mostly from carbon fibre.

  • Page 115: Flight Control System

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook The elevator is designed as a bottom surface supported hinged flap. The elevator is actuated through a pushrod connected to the elevator control bracket. The elevator shell is designed as a 1-cell CFRP sandwich shell.

  • Page 116: Aileron Control System

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina cockpit control levers. A bell-crank is located on the bottom side of the vertical fin and can be inspected through a provision in the vertical stabilizer end-rib. The hook-up to the elevator is via a U-member which conforms to the shape of the elevator.

  • Page 117: Wing Flaps Control System

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Wing Flaps Control System 7.3.4 There are no separate flap control surfaces in place. Function of flaps is achieved through symmetric deflections of the flaperons. Flaps are hand activated through a lever common to both pilots, located between the seats.

  • Page 118: Nose Gear

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina The strut is composed by two parallel elements producing a semi- redundant structure and allowing for predictable locations of stress points. The tube-type nosewheel tire is 4.00 x 6. Wheel track is 1.60 m, wheel base 1.58 m.

  • Page 119: Airplane Cabin

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook braking action. Should any of these symptoms occur, immediate maintenance is required. If, during taxi or landing roll, braking action decreases, let up on the toe brakes and then reapply the brakes with heavy pressure.

  • Page 120: Ventilation

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Ventilation 7.5.2 The system's primary source of fresh air, however, is a set of sliding windows and adjustable vents that direct fresh ram air into the cabin.

  • Page 121: Cabin Safety Equipment

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook All items in the baggage compartment must be secured in place by means of a cargo net. The net is attached to 4 rings located at the baggage compartment corners.
  • Page 122 Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina CAUTION! The engine should not be operated with less than minimum indicated quantity of oil (dipstick). For extended flights, oil quantity of at least half- level between min and max deliminators is recommended Engine Cooling The engine is air and water cooled.

  • Page 123: Engine Operating Controls

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Engine Operating Controls 7.6.3 Engine controls are easily accessible to both pilots on the center console. They consist of a single-lever power (throttle) control, a propeller control...

  • Page 124: Engine Monitoring Instruments

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Engine Monitoring Instruments 7.6.4 The aircraft is equipped with electronic engine instrumentation, which is part of the MFD. Note: For additional information on instrument limit markings, refer to Section 2, Limitations.

  • Page 125: Propeller

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Propeller 7.6.5 The airplane is equipped with a constant-speed, two-blade composite propeller (MT Propeller type MTV-33, diameter 1700 mm) and governor. The propeller governor automatically adjusts propeller pitch to regulate propeller and engine RPM.

  • Page 126: Fuel System

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Fuel System The airplane has two integral fuel tanks, one in each wing. The maximum usable fuel quantity is 75 kg or 100 L (Avgas or Mogas, see chapter Limitations for applicable fuel grades).
  • Page 127 Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Because of aircraft's high wing configuration the fuel system is completely gravity-fed, always ensuring adequate fuel pressure. Fuel system venting is essential to system operation. Blockage of the system will result in decreasing of fuel flow and eventual engine fuel starvation and stoppage.

  • Page 128: Electrical System

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina placarded for quantity in Liters and USGal, as well as colorcoded. Do not attempt to takeoff in the area of fuel quantity designated with RED. Note: When the fuel level is in the RED area, prolonged uncoordinated flight such as slips or skids can uncover the fuel tank outlets.

  • Page 129: Power Distribution

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook electrical system is controlled by means of switch/fuse which are arranged in one row at the upper half of the switch panel under the instrument panel. The circuit breakers (CB) are located under the switch/fuses of the switch panel.

  • Page 130: Switches

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina 2x GSU25 (ADAHRS), GMU22 (Magnetometer), GTP59 (OAT sensor), and GAP26 (Pitot tube). Total consumption of all these items is max 8.63A at 14V. Garmin GTR225 transceiver consumption is typical 0,5A and max 4.2A at 14V, optionally can be installed GNC255 transceiver.

  • Page 131: Warning Lights

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Typically, the switch is used to energize or de-energize all avionics on the Avionics Bus simultaneously. With the switch in the OFF position, no electrical power will be applied to the avionics equipment, regardless of the position of the master switch or the individual equipment switches.

  • Page 132: Circuit Breakers And Fuses

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Note: Engine RPM below 1600 will typically result in GENERATOR FAIL warning light to come ON, however this is not a failure but a case of insufficient RPM to generate electrical power.

  • Page 133: Lightning

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Lightning Exterior Lightning 7.9.1 Navigation Lights The airplane is equipped with LED standard wing tip navigation lights. The lights are controlled through the NAV/STROBE light switch on the switch panel.
  • Page 134 Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Dimming Intensity of all displays' illumination is synchronized and controlled by the SmartDim controller, either reacting to ambient light conditions automatically or as manually set by the pilot. Rotating the knob to the right will result in brigher illumination, rotating the knob to the left will result in dimming.

  • Page 135: Environmental System

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Environmental System 7.10 Cabin ventilation and heating is realised with two principles, the cabin passive inlets/outlets for fresh air routing and the cabin heat system. Cabin passive ventilation The system's primary source of fresh air is a set of sliding windows and adjustable vents that direct fresh ram air into the cabin.
  • Page 136 Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Heating The upper knob on the Cabin Heat System panel controls the temperature of the airflow. Rotate left for cooler and rotate right for warmer. Maximum cold position will result in ambient air to be delivered in the cabin. Maximum hot position will only let the hot air from the exhaust muff into the cabin.

  • Page 137: Pitot System

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Pitot System 7.11 The pitot-Static system consists of a single heated pitot tube mounted on the starboard wing, approximately 3 meters from fuselage and dual static ports mounted in the fuselage just below the baggage compartment. The pitot heat is optional and pilot controlled through a panel-mounted switch.
  • Page 138 Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina POH-121-00-40-001_A02 7-30...

  • Page 139: Flight Deck Arrangement

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Flight Deck Arrangement 7.13 POH-121-00-40-001_A02 7-31...
  • Page 140 Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Instrument Panel The airplane is equipped with an two Garmin G3X (GDU 370) displays. The PFD (left) is a 7'' portrait-oriented display intended to be the primary display of primary flight parameter information (attitude, airspeed, heading, and altitude).

  • Page 141: Flight Instruments

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Flight Instruments 7.14 Note: This chapter provides general information for use of the equipment. For a detailed description of the G3X suite, refer to GARMIN G3X Pilots Guide, revision M, Part Number 190/01115/00.

  • Page 142: Attitude Direction Indicator (Adi)

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Attitude Direction Indicator (ADI) 7.14.1 Air Data The airspeed tape to the left of the main ADI begins indicating at 20 Knots Indicated Airspeed (KIAS) and is color-coded to correspond with airspeeds...

  • Page 143: Attitude Indicator

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Navigation Data Navigation data on the PFD takes several forms. A course deviation indicator (CDI) is always provided on the HSI and a bearing pointer can be optionally selected for display on the HSI by the pilot.

  • Page 144: Mechanical Altimeter

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina difference in static and Pitot pressures and displays the result in knots on an airspeed scale. Mechanical Altimeter 7.14.5 Airplane altitude is depicted on a conventional, three-pointer, internally lit barometric altimeter.

  • Page 145: Magnetic Compass

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Magnetic Compass 7.14.8 A conventional liquid filled, magnetic compass is installed on top of the instrument panel. A compass correction card is installed with the compass. POH-121-00-40-001_A02...

  • Page 146: Avionics System

    Pilot Virus SW 121 Section 7 Operating Handbook Pipistrel d.o.o. Ajdovščina Airplane Desc. Avionics System 7.15 The following paragraphs and equipment descriptions describe all standard avionic installations offered for the aircraft. The avionics navigation and communication equipment are mounted in the instrument panel and are easily accessible from either pilot seat.

  • Page 147: Communication (Com) Transceivers

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Autopilot panel Garmin GMC 305 Pipistrel SmartDim controller ELT Kannad 406 AF compact + remote panel Kannad RC200 Mechanical Compass Slipball Winter Cabin heat control panel Switches and breakers Communication (COM) Transceivers 7.15.1...

  • Page 148: Navigation (Nav) Transceivers (Option)

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina VDC for COM transceiver operation is controlled through the Avionics Switch and supplied through the COM circuit breaker on the Avionics Bus. Navigation (NAV) Transceivers (Option) 7.15.2 Refer to Supplement 9-S2.

  • Page 149: Audio System

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Audio System 7.15.4 The airplane is equipped with a VOX intercom system as part of the COM unit. A separate designated intercom ON/OFF switch is provided below the Transponder on the central part of the instrument panel.
  • Page 150 Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina the autopilot. A solid magenta Heading, Altitude, or VSI bug indicates that the function is currently coupled to an active mode of the autopilot. In flight director equipped aircraft, when a vertical mode of the autopilot is...
  • Page 151 Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook VNV (Vertical Navigation from GPS source) Mode 7.APR (simultaneous Vertical Navigation and NAV guidance from GPS or NAV source) Mode IAS (Indicated Airspeed Hold) Mode LVL (Level-button) Mode 12 VDC for autopilot and is supplied through the two circuit breakers.

  • Page 152: Emergency Locator Transmitter

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Emergency Locator Transmitter 7.17 The airplane is equipped with a self-contained emergency locator transmitter (ELT). The transmitter and antenna are installed immediately behind the aft cabin wall to the right of the airplane centerline. The main transmitter control switch, labeled ON-OFF-ARMED, on the transmitter is in the armed position for normal operations.
  • Page 153 Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook 2. If possible, access the unit as described below and set the ELT main transmitter control switch ON. Portable use of ELT: 1. Fold right seat to gain access to the unit.

  • Page 154: Ballistic Parachute Rescue System (Bprs)

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Ballistic Parachute Rescue System 7.18 (BPRS) The aircraft is equipped with the Ballistic Parachute Rescue System (BPRS) designed to bring the aircraft and its occupants to the ground in the event of a life-threatening emergency.

  • Page 155: Activation

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook The type of BPRS is Galaxy Rescue System GRS 6/600 SD SPEEDY. The parachute system attaches with 2 belts to the aft fuselage/wings pins and belonging bulkhead. When deployed, the aircraft is suspended under the parachute with approx.

  • Page 156: Deployment Characteristics

    Virus SW 121 Pilot Section 7 Airplane Desc. Operating Handbook Pipistrel d.o.o. Ajdovščina Note: Rapidly pulling on the activation T-handle greatly increases the pull forces required to activate the rocket. A safety pin is provided to ensure that the activation handle is not pulled during inadvertantly;...

  • Page 157: Towing Equipment (Optional)

    Virus SW 121 Section 7 Pilot Airplane Desc. Pipistrel d.o.o. Ajdovščina Operating Handbook Descent rate is expected to be less than 1500 feet per minute with a lateral speed equal to the velocity of the surface wind. In addition, surface winds may continue to drag the aircraft after ground impact.
  • Page 158 Section 8 Pilot Virus SW 121 Handling and Servicing Operating Handbook Pipistrel d.o.o. Ajdovščina Section 8 Handling, Servicing and Maintenance Table of Contents Introduction ..............3 Airplane Inspection Periods ........3 Pilot conducted Maintenance ........3 Changes and Repairs ..........4 Servicing ..............
  • Page 159 Pilot Section 8 Virus SW 121 Operating Handbook Handling and Servicing Pipistrel d.o.o. Ajdovščina 8.6.5 Tiedown ................12 Cleaning ..............13 8.7.1 Cleaning Exterior Surfaces ..........13 8.7.2 Cleaning Interior Surfaces ........... 14 POH-121-00-40-001_A02...

  • Page 160: Introduction

    Section 8 Pilot Virus SW 121 Handling and Servicing Operating Handbook Pipistrel d.o.o. Ajdovščina Introduction The airplane owner should establish contact with the dealer or certified service station for service and information. All correspondence regarding the airplane must include its serial number (see tail-mounted type dataplate).

  • Page 161: Changes And Repairs

    Pilot Section 8 Virus SW 121 Operating Handbook Handling and Servicing Pipistrel d.o.o. Ajdovščina The following is a list of the maintenance that the pilot may perform: 1. Remove, install, and repair tires. 2. Clean, grease, or replace wheel bearings 3.

  • Page 162: Servicing

    Section 8 Pilot Virus SW 121 Handling and Servicing Operating Handbook Pipistrel d.o.o. Ajdovščina Servicing 8.5.1 Tire Servicing The main landing gear wheel assemblies use 4.00 x 6 tires and tubes. The nose wheel assembly uses a 4.00 x 4 tire and tube. For maximum service...

  • Page 163: Oil Servicing

    Pilot Section 8 Virus SW 121 Operating Handbook Handling and Servicing Pipistrel d.o.o. Ajdovščina 8.5.4 Oil Servicing Oil must be changed every 100 hours and sooner under unfavorable (AVGAS) operating conditions. An oil filler cap and dipstick are located at the right side of the engine, accessible through an access door on the top right side of the engine cowling.
  • Page 164 Section 8 Pilot Virus SW 121 Handling and Servicing Operating Handbook Pipistrel d.o.o. Ajdovščina suitable earth ground. 3. Place rubber protective cover over wing around fuel tiller. 4. Remove fuel filler cap and fuel airplane to desired level. Note: Do not open (turn) the fuel cap by means of handling the vent tube. Use the provided tool or a coin.
  • Page 165 Pilot Section 8 Virus SW 121 Operating Handbook Handling and Servicing Pipistrel d.o.o. Ajdovščina If sampling reveals contamination, the gascolator must be sampled again repeatedly until all contamination is removed. If after repeated samplings, evidence of significant contamination remains, do not fly the airplane until a mechanic is consulted, the fuel system is drained and purged, and the source of contamination is determined and corrected.

  • Page 166: Ground Handling

    Section 8 Pilot Virus SW 121 Handling and Servicing Operating Handbook Pipistrel d.o.o. Ajdovščina Ground Handling 8.6.1 Application of External Power No dedicated ground service receptacle is available, however it is possible to connect a battery-booster or external power to battery plus terminal and the exhaust.

  • Page 167: Towing / Ground Movements

    Pilot Section 8 Virus SW 121 Operating Handbook Handling and Servicing Pipistrel d.o.o. Ajdovščina To remove external power from airplane: 1. Carefully remove cables from battery terminal and exhaust. 8.6.2 Towing / Ground movements Towing is not approved. For ground movements the following applies.

  • Page 168: Taxiing / Ground Movements

    Section 8 Pilot Virus SW 121 Handling and Servicing Operating Handbook Pipistrel d.o.o. Ajdovščina 8.6.3 Taxiing / Ground movements Before attempting to taxi the airplane, ground personnel should be instructed and authorized by the owner to taxi the airplane. Instruction should include engine starting and shutdown procedures in addition to taxi and steering techniques.

  • Page 169: Parking

    Pilot Section 8 Virus SW 121 Operating Handbook Handling and Servicing Pipistrel d.o.o. Ajdovščina 8.6.4 Parking 1. For parking, head airplane into the wind if possible. 2. Choose even terrain so that fuel does spill because of sloped wings. 3. Retract flaps to (-), retract and lock airbakes.

  • Page 170: Cleaning

    Section 8 Pilot Virus SW 121 Handling and Servicing Operating Handbook Pipistrel d.o.o. Ajdovščina Cleaning 8.7.1 Cleaning Exterior Surfaces The airplane should be washed with a mild soap and water. Harsh abrasives or alkaline soaps or detergents could make scratches on painted or plastic surfaces.

  • Page 171: Cleaning Interior Surfaces

    Pilot Section 8 Virus SW 121 Operating Handbook Handling and Servicing Pipistrel d.o.o. Ajdovščina tetrachloride, thinner, acetone, or glass window cleaning sprays. Use only a nonabrasive cotton cloth or genuine chamois to clean acrylic windows. Pledge spray is, however, recommended to be applied once the windshield is clean.
  • Page 172 Section 8 Pilot Virus SW 121 Handling and Servicing Operating Handbook Pipistrel d.o.o. Ajdovščina CAUTION! Clean lexan windows with a solvent free, none abrasive, antistatic acrylic cleaner. Do not use gasoline, alcohol, benzene, carbon tetrachloride, thinner, acetone, or glass window cleaning sprays. Use only a nonabrasive cotton cloth or genuine chamois to clean acrylic windows.
  • Page 173 Pilot Section 8 Virus SW 121 Operating Handbook Handling and Servicing Pipistrel d.o.o. Ajdovščina The airplane interior can be cleaned with a mild detergent or soap and water. Harsh abrasives or alkaline soaps or detergents should be avoided. Solvents and alcohols may damage or discolor vinyl or urethane parts.
  • Page 174 Section 9 Pilot Virus SW 121 Supplements Operating Handbook Pipistrel d.o.o. Ajdovščina Section 9 Supplements List of effective Supplements Any revision or addition of effective supplements must be recorded in the table. A black vertical line in the left hand margin and the revision no. will indicate the new or amended text in the revision.
  • Page 175 Pilot Section 9 Virus SW 121 Supplements Operating Handbook Pipistrel d.o.o. Ajdovščina Intentionally left blank POH-121-00-40-001_A02...
  • Page 176 Section 9 Pilot Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Section 9 Supplement 9-S1 KANNAD AF406 COMPACT 406 MHz ELT System When the KANNAD AF406 COMPACT 406 MHz ELT System is installed on the aircraft, this AFM Supplement is applicable and must be inserted in the Supplements Section of the Aircraft Flight Manual.
  • Page 177 Pilot Section 9 Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Date of Approval: ____________________________ POH-121-00-40-001_A02 9-S1-2...
  • Page 178 Section 9 Pilot Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Table of Contents Section 1: General Section 2: Limitations Section 3: Emergency Procedures 9.3.1 Forced Landing 9.3.2 Portable Use of ELT Section 4: Normal Procedures Section 5: Performance...
  • Page 179 Pilot Section 9 Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Section 1: General The 406 MHz emergency locator transmitter (ELT) is a radio-frequency transmitter that generates a signal to assist in search and rescue for missing aircraft. The ELT automatically transmits the standard sweep tone on 121.5 MHz if rapid deceleration is detected.
  • Page 180 Section 9 Pilot Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook After sighting rescue aircraft: ELT Remote Switch ..........“ARM” position to prevent radio interference. Attempt contact with rescue aircraft with the radio transceiver set to a frequency of 121.5 MHz. If no contact is established, switch the panel mounted switch to the 'ON'-position immediately.
  • Page 181 Pilot Section 9 Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Section 6: Weight and Balance No change. Section 7: System Description This airplane is equipped with a self-contained KANNAD AF 406 COMPACT 406 MHz ELT System. The transmitter unit is automatically activated upon sensing a change of velocity along its longitudinal axis exceeding 4 to 5 feet per second.
  • Page 182 Section 9 Pilot Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook of unknown duration, or whenever the batteries have been in use for one cumulative hour. Inspection / Test After setting transmitter switch to ARM position, the ELT automatically enters a self-test mode.
  • Page 183 Pilot Section 9 Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Codes displayed with the associated conditions are as follows: 1-Flash: Indicates that the system is operational and that no error conditions were found. 2-Flashes: Not used. If displayed, correct condition before further flight.
  • Page 184 Section 9 Pilot Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Section 9 Supplement 9-S2 Garmin GNC 255 NAV/COM When a Garmin GNC 255 NAV/COM is installed on the aircraft, this AFM Supplement is applicable and must be inserted in the Supplements Section of the Aircraft Flight Manual.
  • Page 185 Pilot Section 9 Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Table of Contents Section 1: General Section 2: Limitations Section 3: Emergency Procedures Section 4: Normal Procedures Section 5: Performance Section 6: Weight and Balance Section 7: System Description...
  • Page 186 Section 9 Pilot Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook Section 1: General No change. Section 2: Limitations No change. Section 3: Emergency Procedures No change. Section 4: Normal Procedures No change. Section 5: Performance No change. Section 6: Weight and Balance No change.
  • Page 187 Pilot Section 9 Virus SW 121 Pipistrel d.o.o. Ajdovscina Supplements Operating Handbook 7.15.2 Navigation (NAV) Transceivers (Option) If the optional GNC 255 COM/NAV unit is installed, the airplane is equipped with an NAV receiver. The receiver is designated as NAV. The NAV receiver controls are integrated into the Garmin GNC 255.

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