Pipistrel Sinus 912 LSA LSA-GLIDER Pilot Operating Handbook
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Pipistrel Sinus 912 LSA LSA-GLIDER Pilot Operating Handbook

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Pilot's Operating Handbook
and Flight Training Supplement
applies to LSA-GLIDER version of Sinus 912 LSA
flown at 550 kgs MTOM
equipped with Rotax 912
UL (80 HP) engine
Tail-wheel version owners see
Supplemental sheet at the back of this manual
REVISION 3
(24th April, 2015)
Aircraft Registration Number:
Aircraft Serial Number:
This publication includes the material required to be furnished to the pilot
by ASTM F2564, F2279 & F2295.
WARNING!
T
his document MUST be present inside the cockpit at all times.
Should you sell this aircraft make sure this document is given to the new owner.
© Copyright Pipistrel LSA s.r.l., Via Aquileia 75, 34170 Gorizia, Italy, EU

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Summary of Contents for Pipistrel Sinus 912 LSA LSA-GLIDER

  • Page 1 ASTM F2564, F2279 & F2295. WARNING! his document MUST be present inside the cockpit at all times. Should you sell this aircraft make sure this document is given to the new owner. © Copyright Pipistrel LSA s.r.l., Via Aquileia 75, 34170 Gorizia, Italy, EU...
  • Page 2 Sinus 912 LSA Glider 550 MTOW REV. 3 This page is intentionally left blank.
  • Page 3 They are calcu- lated valued derived from flight test conducted by Pipistrel LSA s.r.l. under carefully documented conditions and will vary with individual airplanes and numerous factors (surface condition, tem- perature, water on wing, etc).
  • Page 4 REV. 3 Coverage The Pilot’s Operating Handbook (POH) in the airplane at the time of delivery from Pipistrel LSA s.r.l. contains information applicable to the Sinus 912 LSA aircraft and to the airframe designated by the serial number and registration number shown on the Title Page. All information is based on data available at the time of publication.
  • Page 5 The table below indicated the Revisions, which were made from the original release to this date. Always check with your registration authority, Pipistrel USA (www.pipistrel-usa.com) or Pipistrel LSA s.r.l (www. pipistrel.eu) that you are familiar with the current release of the operation-relevant documentation, which includes this POH.
  • Page 6 Sinus 912 LSA Glider 550 MTOW REV. 3 Log of Effective Pages Use to determine the currency and applicability of your POH. Pages are affected by the current revision are marked in bold text in the Page Number column.
  • Page 7 Sinus 912 LSA Glider 550 MTOW REV. 3 Log of Effective Pages (continued) Page number Page Status Rev. number Page number Page Status Rev. number Revised Revised 9-10 Revised 9-11 Revised 9-12 Revised 9-13 Revised 9-14 Revised 9-15 Revised...
  • Page 8 Sinus 912 LSA Glider 550 MTOW REV. 3 This page is intentionally left blank.

  • Page 9: Table Of Contents

    Sinus 912 LSA Glider 550 MTOW REV. 3 Table of contents 1 General 2 Limitations 3 Emergency procedures 4 Normal procedures 5 Performance 6 Weight and balance 7 Description of aircraft & systems 8 Handling and service 9 Appendix...
  • Page 10 Sinus 912 LSA Glider 550 MTOW REV. 3 This page is intentionally left blank.

  • Page 11: General

    Sinus 912 LSA Glider 550 MTOW General REV. 3 1 General Introduction (1-2) Technical brief (1-2) 3-view drawing (1-3) Powerplant, fuel, oil (1-4) Weights (1-6) Centre of gravity range (1-6) G-load factors (1-6)

  • Page 12: Sinus 912 Lsa Glider 550 Mtow

    (electronic, web or printed) without the prior consent of PIPISTREL LSA s.r.l. unless they are directly related to the operation of our aircraft by an owner or his appointed maintenance authority.

  • Page 13: 3-View Drawing

    Sinus 912 LSA Glider 550 MTOW General REV. 3 3-view drawing...

  • Page 14: Powerplant, Fuel, Oil

    Sinus 912 LSA Glider 550 MTOW General REV. 3 Powerplant, fuel, oil Engine manufacturer: ROTAX Engine type: ROTAX 912 UL (80 HP) Data below is data relevant for pilot. Consult the original Rotax engine manual for all other details.
  • Page 15 Propeller Sinus 912 LSA Propeller Sinus 912 LSA with Rotax 912 UL (80 HP) Pipistrel F2-80 Sinus 912 LSA with Rotax 912 UL (80 HP) Pipistrel Vario Engine instrument markings Red line...

  • Page 16: Weights

    Sinus 912 LSA Glider 550 MTOW General REV. 3 Weights Sinus 912 LSA weights WEIGHT 912 LSA 80 HP standard empty weight 643 lbs (292 kg) max. takeoff weight (MTOM) 1210 lbs (550 kg) fuel capacity (full) 2 x7.25/13 US gal fuel capacity (usable) 14.5/24.5 US gal (55/93 L)
  • Page 17 Sinus 912 LSA Glider 550 MTOW Limitations REV. 3 2 Limitations Introduction (2-2) Airspeed limitations (2-2) Powerplant limitations (2-3) Weight limits (2-4) Cockpit crew (2-4) Centre of gravity limits (2-4) Load factors (2-5) (2-5) Service ceiling and airspeed reductions...

  • Page 18: Limitations

    Sinus 912 LSA Glider 550 MTOW Limitations REV. 3 Introduction This section includes operating limitations, instrument markings and basic placards necessary for the safe operation of the airplane, it’s engine, standard system and standard equipment. The limitations included in this section have been approved. Observance of these operating limita- tions is required by Federal Aviation Regulations.

  • Page 19: Powerplant Limitations

    Sinus 912 LSA Glider 550 MTOW Limitations REV. 3 Powerplant limitations Engine manufacturer: ROTAX Engine type: ROTAX 912 UL (80 HP) Data below is data relevant for the pilot. Consult the original Rotax engine manual for all other details.
  • Page 20 Sinus 912 LSA Glider 550 MTOW Limitations REV. 3 Propeller Sinus SW Propeller Pipistrel F2-80 - diameter 63 inch (1620 mm) Sinus 912 LSA with Rotax 912 UL (80 HP) Pipistrel Vario feathering propeller 63 inch (1620mm) Engine instrument markings Red line Green arc...

  • Page 21: Load Factors

    Sinus 912 LSA Glider 550 MTOW Limitations REV. 3 G-load factors max. positive wing load: + 4 G max. negative wing load: – 2 G These values correspond to ASTM standards for LSA’s. All parts have been tested to a safety factor of a minimum of 1.875, meaning they were subjected to at least a load of 7.5 G...

  • Page 22: Kinds Of Operations

    Sinus 912 LSA Glider 550 MTOW Limitations REV. 3 Kinds of operations Sinus 912 LSA is approved for DAY - NIGHT - VFR operations only. Flight into known icing conditions is prohibited. WARNING! Should you find water drops on the airframe during preflight check-up at temperatures close to freezing, you may expect icing to appear in flight.

  • Page 23: Other Restrictions

    Sinus 912 LSA Glider 550 MTOW Limitations REV. 3 WARNING! Takeoff is prohibited if either visual fuel indicator indicates in the red area (less than 1.3 US gal) or when unsure about the fuel quantity on board. NOTES To ensure maximum fuel capacity and minimise cross feeding when refuelling, always park the airplane in a wings level, normal ground attitude.

  • Page 24: Placards

    Sinus 912 LSA Glider 550 MTOW Limitations REV. 3 Placards...

  • Page 25: Emergency Procedures

    Sinus 912 LSA Glider 550 MTOW Emergency procedures REV. 3 3 Emergency procedures Introduction (3-2) Stall recovery (3-2) Spin recovery (3-2) Engine failure (3-3) Emergency landing / Landing out (3-3) Engine fire (3-3) Smoke in cockpit (3-4) Carburetor icing (3-4)

  • Page 26: Sinus 912 Lsa Glider 550 Mtow

    Sinus 912 LSA Glider 550 MTOW Emergency procedures REV. 3 Introduction This sections provides information for coping with emergencies that may occur. Emergencies caused by airplane or engine malfunctions are extremely rare if proper preflight inspections and mainte- nance are practiced. Enroute weather emergencies can be minimized or eliminated by careful flight planning and good judgment when unexpected weather is encountered.

  • Page 27: Engine Failure

    Sinus 912 LSA Glider 550 MTOW Emergency procedures REV. 3 Engine failure Engine failure during takeoff Ensure proper airspeed first (55 kts) and land the aircraft on runway heading, avoiding eventual ob- stacles in your way. Shut both fuel valves and set master switch to OFF position (key full left).

  • Page 28: Smoke In Cockpit

    Sinus 912 LSA Glider 550 MTOW Emergency procedures REV. 3 Engine fire in flight 1. Shut both fuel valves and set magnetos to OFF. 2. Set full power (throttle lever in full forward position). 3. Disconnect the battery from the circuit (pull battery disc. ring on the switch column) 3b.

  • Page 29: Flutter

    Sinus 912 LSA Glider 550 MTOW Emergency procedures REV. 3 Flutter Flutter is defined as the oscillation of control surfaces. It is most cases caused by abrupt control de- flections at speeds close or in excess of VNE. As it occurs, the ailerons, elevator or even the whole aircraft start to vibrate violently.
  • Page 30 Sinus 912 LSA Glider 550 MTOW REV. 3 This page is intentionally left blank.
  • Page 31 Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 4 Normal procedures Daily inspection (4-2) Preflight inspection (4-2) Normal procedures and recommended speeds (4-5)

  • Page 32: Normal Procedures

    Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Daily Inspection The daily check-up matches the preflight inspection. Preflight inspection WARNING! Every single inspection mentioned in this chapter must be performed prior to EVERY FLIGHT, regardless of when the previous flight took place! The person responsible for the preflight inspection is the pilot, who is required to per- form the check-up in the utmost thorough and precise manner.
  • Page 33 Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Engine, engine cover Cooling fluid level: half way to the top Oil quantity: within designated limits Throttle, choke and oil pump wires: no mechanical damage, smooth and unobstructed movement...
  • Page 34 Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Wings’ leading edge Surface condition: pristine, no cracks, impact spots, no paint and/or edge separations Pitot tube: firmly attached, no mechanical damage or bending. Remove protection cover and make sure it is not blocked or full of water.
  • Page 35 Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Cockpit preflight inspection Instrument panel and instruments: checked Fuses: checked Battery disconnection lever: in position for battery operation (lever deflected towards the firewall) Master switch OFF (key in full left position): no control lights and/or electronic instrument activity Master switch ON (key in full right position): control lights and electronic instrument active Make sure you have set all instruments to correct initial setting.
  • Page 36 Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Engine start-up Before engine start-up CAUTION! To ensure proper and safe use of aircraft it is essential for one to familiarise your- self with engine’s limitations and engine manufacturer’s safety warnings. Before engine start-up make sure the area in front of the aircraft is clear.
  • Page 37 Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Taxi Release parking brake if fitted. Taxing technique does not differ from other aircraft equipped with a steerable nose wheel. Prior to taxiing it is essential to check wheel brakes for proper braking action.
  • Page 38 Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Initial climb When airborne, engage brakes momentarily to prevent in-flight wheel spinning. Accelerate at full power and later maintain proper climbing speed. As you reach 50 kts (90 km/h) at above 150 ft (50 m), set flaps to 1 stage, reaching 60 kts (110 km/h) at 300 ft (100 m) set flaps to neutral position.
  • Page 39 Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Descent and final approach Descent at speeds at or below VRA and flaps in negative stage. To expedite descents use airbrakes (if applicable) and keep airspeed below VAE. For approach reduce speed to 70 kts (130 km/h) and set flaps to 1 position only after turning to base leg.
  • Page 40 4-10 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Normal procedures REV. 3 Crosswind approach and roundout CAUTION! Crosswinds prolong landing runway length due to elevated airspeed that should be used, see previous page. Performing a crosswind landing, the wing-low method should be used. When using the wing-low method it is necessary to gradually increase the deflection of the rudder and aileron to maintain the proper amount of drift correction.

  • Page 41: Performance

    Sinus 912 LSA Glider 550 MTOW Performance REV. 3 5 Performance Introduction (5-2) Airspeed indicator calibration (5-2) Take-off performance (5-2) Climb performance (5-4) Cruise (5-5) Descent (5-5) Landing performance (5-6) Crosswind takeoffs/land- ings (5-6)

  • Page 42: Introduction

    Sinus 912 LSA Glider 550 MTOW Performance REV. 3 Introduction This section provides information on aircraft’s airspeed calibration, stall speeds and general perfor- mance. All data published was obtained from test flight analysis using average flying skills. Sinus 912 LSA 80/100 has demonstrated adequate engine cooling performance at ambient tempera- tures of 38 Celsius / 100°F.
  • Page 43 Sinus 912 LSA Glider 550 MTOW Performance REV. 3 Effect of elevation The table below provides data about the effect of elevation on takeoff runway length. elevation (ft) 1500 3000 4500 atmosph. pressure (inHg) 29.92 28.17 26.52 24.95 atmosph. pressure (hPa) 1012 outside temperature (°F)

  • Page 44: Climb Performance

    Sinus 912 LSA Glider 550 MTOW Performance REV. 3 Effect of outside temperature The table below provides data about the effect of outside temperature on takeoff runway length. Data is referenced for sea level performance at MTOM. OAT temp (°F)

  • Page 45: Cruise

    Sinus 912 LSA Glider 550 MTOW Performance REV. 3 Cruise Aircraft at MTOM, recommended cruise power of 5300 RPM at 15°C / 59°F at sea level altitude, flaps set to negative position (-5 degrees): Sinus 912 LSA cruise airspeed 110 kts Best economy cruising level is 7500 ft .

  • Page 46: Landing Performance

    Sinus 912 LSA Glider 550 MTOW Performance REV. 3 Speed polar (propeller feathered) -200 -600 -5 -1000 sink rate L/D ratio -7 -1400 -9 -1800 -11 -2200 210 225 EAS (km/h) Landing performance Final approach speed should always be 55 kts (102 km/h) with full flaps, regardless of the approach- ing with zero or full airbrakes.

  • Page 47: Weight And Balance

    Sinus 912 LSA Glider 550 MTOW Weight and balance REV. 3 6 Weight and balance Introduction (6-2) Weighing procedure (6-2) Equipment list (6-3) Determination of CG (6-3) Sample CG calculation (6-4)

  • Page 48: Introduction

    Sinus 912 LSA Glider 550 MTOW Weight and balance REV. 3 Introduction This section describes the procedure for establishing the basic empty weight and moment of the air- plane. Sample calculations are provided for reference. For additional information regarding Weight and Balance procedures, refer to the Aircraft Weight and Balance Handbook (FAA-H-8083-1).

  • Page 49: Equipment List

    Sinus 912 LSA Glider 550 MTOW Weight and balance REV. 3 Equipment list Aircraft’s empty weight data is unique for each and every Sinus 912 LSA delivered. The owner is re- sponsible for keeping the equipment list up to date...

  • Page 50: Sample Cg Calculation

    Sinus 912 LSA Glider 550 MTOW Weight and balance REV. 3 Sample c.g. calculation Guidelines Gtotal is the total mass of empty aircraft. All calculations can be performed with aircraft empty weight and empty weight centre of gravity (c.g.), as the pilots sits directly below the centre of gravity and do not cause the c.g.
  • Page 51 Sinus 912 LSA Glider 550 MTOW Weight and balance REV. 3 Baggage and CG The amount of baggage you can carry in the solid baggage compartment or in the baggage pouch behind the seats is limited by the centre of gravity of the empty aircraft (pilots’ and fuel weight do not influence c.g.) and the MTOM.
  • Page 52 Sinus 912 LSA Glider 550 MTOW REV. 3 This page is intentionally left blank.
  • Page 53 Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Description of Aircraft & Systems Introduction (7-2) Cockpit controls (7-4) Instrument panel (7-4) Undercarriage (7-6) Seats and safety harnesses (7-6) Pitot-static system (7-6) Air brakes (7-6)

  • Page 54: Description Of Aircraft & Systems

    Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Introduction Sinus 912 LSA is a 49 ft (14.97 m) wingspan, two-seat T-tail motorglider made almost en- Refuelling can be done by pouring fuel tirely of composite materials. Its low-drag,...
  • Page 55 Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Composite parts are made of: fabric: GG160, GG200, 90070, 92110, 92120, 91125, 92140, 92145, KHW200 roving: NF24 foam: 75 kg/m3 PVC 3mm, PVC 5 mm, PVC 8mm...

  • Page 56: Description Of Aircraft & Systems

    Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Cockpit levers Sinus 912 LSA’s cockpit levers are divided into two groups: Individual control levers: pilot stick and rudder with differential brake levers Joint control levers: throttle lever, chock lever, flap lever, trim lever, airbrakes lever (if applicable), fuel valves, door handles, battery disconnection lever/ring and emergency parachute release handle.
  • Page 57 Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 There are two types of instrument panels, the big and small version, both equipped with the Brauniger Alpha MFD as the standard multifunction instrument. Factory approved options are a single Dynon D180 EFIS/EMS as the main instrument or dual screen efis setup with Dynon D100 and EMS120.

  • Page 58: Undercarriage

    Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Undercarriage The undercarriage is a tricycle type with two main, brake equipped, wheels mounted on struts and a steerable nose wheel. The nose wheel steers through rudder pedals distance between main wheels: 63 inch (1.6 m)

  • Page 59: Power Plant

    Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Power plant Sinus 912 LSA is equipped with Rotax 912 UL 80 HP engine Engine description: Engine: ROTAX 912 UL 80 HP (4-stroke boxer, four cylinders, 1211 cm...

  • Page 60: Fuel System

    Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Propeller types: propeller Pipistrel twin blade, ground adjustable or Vario composite propeller F2-80 (for Rotax 912 UL 80 HP): - diameter 63’’ / 1620 mm Depending on the configuration, the propeller may be ground adjustable or featherable. In the lat- ter case the propeller can be feathered when the engine is not running.

  • Page 61: Electrical System

    Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 WARNING! Visual fuel quantity indicator (tubes) in cockpit do not always provide relevant information about the actual fuel quantity on board. Because of wing dihedral, angle of attack, sideslip and reservoir supply point the readout may be incorrect.
  • Page 62 7-10 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Schematic of electrical system (before late-2010)
  • Page 63 7-11 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Schematic of electrical system (continued) Pitot heat Pitot heat is available in combination with the AOA sensing pitot tube. It is the single most powerful electrical load in the system, consuming more than 100 Watts of power.

  • Page 64: Engine Cooling System

    7-12 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Engine cooling system Rotax 912 UL cooling system The Rotax 912 engine’s cylinders are aircooled, the cylinder heads watercooled. The cooling-air in- take is located on the right-hand bottom part of the engine cover.

  • Page 65: Engine Lubrication System

    7-13 Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 Engine lubrication system Rotax 912 is a four-stroke engine, equipped with a dry sump and lubricated centrally with use of its own oil pump. All the oil needed is located inside an outer canister. When the engine is running, the oil cools itself passing through a radiator, located on the left-hand side of the bottom engine cover.
  • Page 66 7-14 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Description of Aircraft & Systems REV. 3 This page is intentionally left blank.
  • Page 67 Sinus 912 LSA Glider 550 MTOW Handling and servicing REV. 3 8 Handling and servicing Special inspections (8-2) Draining & refuelling (8-2) Connecting Auxiliary power supplies (8-3) Tie down (8-4) Storage (8-4) Cleaning (8-4) Keeping your aircraft in perfect shape (8-5)
  • Page 68 Sinus 912 LSA Glider 550 MTOW Handling and servicing REV. 3 Special inspections After having exceeded VNE or landed in a rough manner: Check the undercarriage, fuselage & wing surfaces and main spars for abnormalities. It is highly recommended to have the aircraft verified for airworthiness by authorised service personnel.

  • Page 69: Sinus 912 Lsa Glider 550 Mtow

    Sinus 912 LSA Glider 550 MTOW Handling and servicing REV. 3 Should you be experiencing slow refuelling with the electrical fuel pump, you should replace the fil- ter. You can use any fuel filter for this application. It is recommended to use additional plastic tubes attached to the fuel tank vents and leading to the...

  • Page 70: Tie Down

    Sinus 912 LSA Glider 550 MTOW Handling and servicing REV. 3 Tie down Point the aircraft into the wind and retract flaps fully. Chock all three wheels. Remove the caps cover- ing mounting holes on the bottom part of the wing (located 15 ft from the fuselage) and carefully screw in the two screw-in rings provided.

  • Page 71: Keeping Your Aircraft In Perfect Shape

    Sinus 912 LSA Glider 550 MTOW Handling and servicing REV. 3 Keeping your aircraft in perfect shape Precautions 1) Eliminate the use of ALL aggressive cleaning solutions and organic solvents, also the window cleaning spray, benzene, acetone, aggressive shampoos etc.
  • Page 72 Sinus 912 LSA Glider 550 MTOW Handling and servicing REV. 3 Always rinse the shampooed surfaces again before they become dry! Thereafter, wipe the whole of the aircraft dry using a drying towel, chamois or artificial leather skin. Also, clean the Mylar seals on the wing and tail control surfaces. Lift the seals gently and insert ONE layer of cloth underneath, then move along the whole span of the seal.

  • Page 73: Appendix

    Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 9 Appendix Parachute rescue system: use, Handling and servicing (9-1) How fast is too fast (9-4) Myth: I can fully deflect the controls below maneuvering speed! (9-7) Training supplement (9-8)

  • Page 74: System Description

    Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 Parachute rescue system: use, Handling and servicing System description The GRS rocket charged parachute rescue system provides you with a chance to rescue yourself from an unexpected situation. The system is placed inside a durable cylinder mounted on the right hand side of the baggage com- partment.
  • Page 75 Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 As a pilot you should know that the phase following parachute deployment may be a great un- known and a great adventure for the crew. You will be getting into a situation for the first time, where a proper landing and the determination of the landing site are out of your control.
  • Page 76 Based on two recent unfortunate events, where two pilots lost their newly acquired Sinus and Sinus aircraft, the team of Pipistrel’s factory pilots decided to stress the importance of airspeed even more. Do read this passage thoroughly as everything mentioned below affects you as the pilot directly! The two events Both the events took place during the first couple of hours pilots flew with their new aircraft.
  • Page 77 Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 Because of that pilots, who are flying high up feel like they are flying terribly slow. At high speeds the air circulating the airframe should cause tremendous noise. Wrong! In fact the noise is caused by drag. Modern aircraft like Sinus and Sinus, manufactured of com- posite materials, have so little drag, that they actually sound quieter than you would expect.
  • Page 78 • Trust the instruments and be aware of the IAS to TAS relation! Always respect the limitations prescribed in this manual! Never exceed the VNE as this has proved to be fatal! Keep that in mind every time you go flying. Pipistrel wishes you happy landings!
  • Page 79 Sinus 912 LSA Glider 550 MTOW Appendix Appendix REV. 3 Myth: I can fully deflect the controls below maneuvering speed! WRONG! BELIEVE THIS AND DIE! The wing structure in light planes is usually certified to take +3.8 G’s, -1.52 G’s (plus a certain safety factor).
  • Page 80 Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 Training/Familiarization Supplement This chapter has been written to assist owners/pilots/instructors of Sinus 912 LSA on their quest to learn how to safely and efficiently fly this aircraft in addition to the information already assembled in the rest of this POH.
  • Page 81 Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 When the nose wheel has lifted off the ground, there is nothing else but to hold the same pitch attitude and the aircraft will become airborne. Crosswind take-offs, depending on wind strength, require a little bit of aileron deflection into the wind.
  • Page 82 9-10 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 Before turning to base-leg, reduce power to idle and set flaps to 1 stage at 60 kts (110 km/h). Once out of the turn, reduce speed towards 55 kts (100 km/h). Power remains idle from the point of turning base all the way to touch-down.
  • Page 83 9-11 Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 use 1 stage of flaps for increased maneuverability. In very strong winds (20 kts and more), use neutral flaps (0 deg.) for the complete approach and roundout. Parking Nothing special to add here. Taxi to the apron with flaps in negative position (minimum lift) and spoilers retracted.
  • Page 84 9-12 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 Conversion tables kilometers per hour (km/h) - knots (kts) - metres per sec. (m/s) km/h km/h km/h 1.853 0.37 63.00 18.34 124.16 36.15 3.706 1.07 64.86 18.88 126.01 36.69 5.560...
  • Page 85 9-13 Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 knots (kts) - metres per second (m/s) 0.51 1.02 1.54 2.05 2.57 3.08 3.60 4.11 4.63 0.51 5.65 6.17 6.66 7.20 7.71 8.23 8.74 9.26 9.77 10.28 10.80 11.31 11.83...
  • Page 86 9-14 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 ICAN (international committee for air navigation) temperatures, relative pressure, relative density and CAS to TAS correction factors as related to altitude Altitude Temperature Relative Relative Cor. pressure density factors...
  • Page 87 9-15 Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 metres (m) to feet (ft) conversion table metres feet metres feet metres feet (ft) (ft) (ft) 0.304 3.280 10.36 111.5 20.42 219.81 0.609 6.562 10.66 114.8 20.72 223.09 0.914 9.843...
  • Page 88 9-16 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 air pressure as related to altitude altitude (m) pressure pressure altitude (m) pressure pressure (hPa) (inch Hg) (hPa) (inch Hg) -1000 1139.3 33.6 1300 866.5 25.6 -950 1132.8 33.5 1350 861.2...
  • Page 89 9-17 Sinus 912 LSA Glider 550 MTOW Appendix REV. 3 ICAO standard atmosphere n*10 1/S d (kg/m 4 ) (m 2 /s) (ft) (°C) (°K) (mmHg) (kg/m (kgs -1000 -3281 21.5 294.5 1.022 854.6 11619 1.124 0.137 1.347 1.099 0.957...
  • Page 90 9-18 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW Preflight check-up pictures REV. 3 Engine cover Gascolator Propeller, Spinner Undercarriage Undercarriage, RH wheel Right wing - leading edge Right wingtip - lights Right wing - trailing edge...
  • Page 91 9-19 Sinus 912 LSA Glider 550 MTOW Preflight check-up pictures REV. 3 Right spoiler Fuselage (RH side) Fuselage Fuselage, continued Horizontal tail surfaces Vertical tail surfaces Incorrect - door not secured Correct - door secured...
  • Page 92 9-20 www.pipistrel.eu Sinus 912 LSA Glider 550 MTOW REV. 3 This page is intentionally left blank.
  • Page 93 Sinus 912 LSA-GLIDER version of Flight manual and Maintenance manual. This supplemental sheet contains four (4) valid pages. This is the original document issued by Pipistrel LSA s.r.l. Should third-party translations to other languages contain any inconsistencies, Pipistrel LSA denies all responsibility.
  • Page 94 In case of aircraft damage or personal injury resulting form disobeying instructions in this document PIPISTREL LSA denies any responsibility. All text, design, layout and graphics are owned by PIPISTREL LSA therefore this document and any of its contents may not be copied or distributed in any manner (electronic, web or printed) without the prior consent of PIPISTREL LSA.
  • Page 95 10-3 Supplemental Sheet for Sinus 912 LSA Glider 550 MTOW tail-wheel edition REV. 3 Page 63, 65. - Normal procedures and recommended speeds Taxi Taxing technique does not differ from other tail wheel aircraft equipped with a steerable tail wheel.
  • Page 96 10-4 www.pipistrel.si Supplemental Sheet for Sinus 912 LSA Glider 550 MTOW tail-wheel edition REV. 3 Aircraft and systems on board Page 22. - Undercarriage The undercarriage is a tail dragger type with two main brake-equipped wheels mounted on struts and a free-spinning or rudder-guided tail wheel.
  • Page 97 10-5 www.pipistrel.si Supplemental Sheet for Sinus 912 LSA Glider 550 MTOW tail-wheel edition REV. 3 3-view drawing...
  • Page 98 10-6 www.pipistrel.si Supplemental Sheet for Sinus 912 LSA Glider 550 MTOW tail-wheel edition REV. 3 This page is intentionally left blank.
  • Page 99 Sinus 912 LSA checklist...
  • Page 100 Sinus 912 LSA Glider 550 MTOW REV. 3 This page is intentionally left blank.
  • Page 101 - in case that the customer has not ratified the General Terms of ownership with his/her signature; - in case the aircraft or the equipment is not used according to the Pipistrel d.o.o. ’ s instructions or aircraft’s manual and eventual supplemental sheets;...
  • Page 102 Pipistrel LSA s.r.l. Via Aquileia 75 34170 Gorizia Italy, EU info@pipistrel-usa.com www.pipistrel-usa.com www.pipistrel.eu...

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