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Pipistrel Sinus 503 Flight And Maintenance Manual

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See also: Service & Repair Manual
Flight manual and

Maintenance manual

applies to Sinus 503, Sinus 582 in Sinus 912
equipped with Rotax 503, Rotax 582
and Rotax 912 engines
Sinus NW (nose-wheel edition) owners please regard to the
Supplemental sheet at the back of this manual
REV. 0
(15 April, 2006)
This is the original manual of Pipistrel d.o.o. Ajdovscina
Should third-party translations to other languages contain any inconsistencies,
Pipistrel d.o.o. denies all responsibility.
WARNING!
As this manual applies to all models of Sinus ultralight motorglider it is mandatory to designate
those specific parts of this manual that regard the aircraft you own.
This booklet MUST be present inside the cockpit at all times!
Should you be selling the aircraft make sure this manual is handed over to the new owner.

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Summary of Contents for Pipistrel Sinus 503

  • Page 1: Maintenance Manual

    Flight manual and Maintenance manual applies to Sinus 503, Sinus 582 in Sinus 912 equipped with Rotax 503, Rotax 582 and Rotax 912 engines Sinus NW (nose-wheel edition) owners please regard to the Supplemental sheet at the back of this manual REV.
  • Page 2 SINUS motorglider REV. 0 Sinus model: Serial number: Date of manufacture: Aircraft empty weight (kg): Fuel weight: Available cargo weight: Installed appliances included in aircraft empty weight: Date and place of issue: Ajdovščina,...
  • Page 3 SINUS motorglider REV. 0 Pipistrel d.o.o. Ajdovščina, Goriška cesta 50a, SI-5270 Ajdovščina, Slovenija tel: +386 (0)5 3663 873, fax: +386 (0)5 3661 263, e-mail: info@pipistrel.si www.pipistrel.si Flight manual and Maintenance manual for Sinus motorglider Models: Sinus 503, 582 and 912 (TW and NW)

  • Page 4: Index Of Revisions

    SINUS motorglider REV. 0 Index of revisions Enter and sign the list of revised pages in the manual into the spaces provided below. All revised pages should be clearly designated in the upper right corner of the page, also, any changes in page content should be clearly visible (e.g.
  • Page 5 SINUS motorglider REV. 0...
  • Page 6 SINUS motorglider REV. 0 This page is intentionally left blank.
  • Page 7 SINUS motorglider REV. 0 Table of contents General Limitations Emergency procedures Normal procedures Performance Weight and balance Aircraft and systems on board Handling and maintenance Appendix...
  • Page 8 SINUS motorglider REV. 0 This page is intentionally left blank.
  • Page 9 SINUS motorglider General REV. 0 General Introduction Certification basis Notes and remarks Technical data Aircraft projections...

  • Page 10: Certification Basis

    01__ dated: 09.07.1999 In case of aircraft damage or people injury as an Ultralight aircraft. resulting form disobeying instructions in the manual PIPISTREL d.o.o. denies all responsi- (see attachments for copies of certificates) bility. All text, design, layout and graphics are owned by PIPISTREL d.o.o.
  • Page 11 SINUS motorglider General REV. 0 Aircraft projections...
  • Page 12 SINUS motorglider REV. 0 This page is intentionally left blank.
  • Page 13 SINUS motorglider Limitarions REV. 0 Limitations Introduction Operational velocities Engine, fuel, oil Weight limits Centre of gravity limits Manoeuvre limits G-load factors Cockpit crew Types of operations Minimum equipment list Other restrictions Warning placecards...

  • Page 14: Speed Limits

    SINUS motorglider Limitations REV. 0 Introduction This chapter provides information about operational restrictions, instrument markings and basic knowledge on safe operation of aircraft, engine and on-board appliances. Operational velocities Speed limits Velocity Remarks [km/h (kts)] Never exceed this speed in horizontal flight.
  • Page 15 SINUS motorglider Limitations REV. 0 difference between IAS and TAS. Be aware of this effect especially when flying at high altitude at high speeds, not to exceed VNE unawarely. Bear in mind this can happen even with the indicator still pointing within the yellow arc! However, for flight planning purposes TAS is the most accurate speed, which then can be corrected by eventual tail/head wind component to obtain the aircraft’s ground speed (GS).

  • Page 16: Fuel And Oil

    SINUS motorglider Limitations REV. 0 Engine, fuel, oil Engine manufacturer: ROTAX Engine types: ROTAX 503, ROTAX 582, ROTAX 912 The engine TEMPERATURE °C / ROTAX ENGINE 503 UL 582 UL 912 UL cylinder head temp. (CHT); min., work, highest 100;...

  • Page 17: Engine Instrument Markings

    SINUS motorglider Limitations REV. 0 Propeller SINUS Model 503 Model 582 Model 912 fixed pitch Pipistrel BAM 2 Pipistrel BAM 2 Pipistrel BAM 2 variable pitch Pipistrel VARIO Pipistrel VARIO Pipistrel VARIO Engine instrument markings WARNING: fill in engine specific values.

  • Page 18: Centre Of Gravity Limits

    SINUS motorglider Limitations REV. 0 Centre of gravity limits • Aircraft's safe centre of gravity position ranges between 20% and 39% of mean aero- dynamic chord. • Reference point ranges between 243 mm and 408 mm, datum is wing's leading edge.

  • Page 19: Minimum Equipment List

    SINUS motorglider Limitations REV. 0 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. Spoilers (airbrakes) are especially prone to icing under such circumstances. As water may accumulate underneath the top plate(s), spoilers may freeze to the wing surface.
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  • Page 21: Emergency Procedures

    SINUS motorglider Emergency procedures REV. 0 Emergency procedures Introduction Stall recovery Spin recovery Engine failure Landing out Engine fire Smoke in cockpit Carburator icing Flutter Exceeding VNE...

  • Page 22: Stall Recovery

    SINUS motorglider Emergency procedures REV. 0 Introduction This chapter provides information on how to react when confronted with typical flight hazards. Stall recovery First reduce angle of attack by easing-off on the control stick, then 1. Add full power (throttle lever in full forward position).

  • Page 23: Engine Failure In Flight

    SINUS motorglider Emergency procedures REV. 0 Engine failure in flight First ensure proper airspeed by reducing angle of attack, then start analysing terrain underneath and choose in your opinion the most appropriate site for landing out. WARNING! The decision where to land when landing out is FINAL! DO NOT change your mind even if you happen to come across a different, perhaps more appropriate landing site.

  • Page 24: Smoke In Cockpit

    SINUS motorglider Emergency procedures REV. 0 Smoke in cockpit Smoke in cockpit is usually a consequence of electrical wiring malfunction. As it is most definitely caused by a short circuit it is required from the pilot to react as follows: 1.

  • Page 25: Normal Procedures

    SINUS motorglider Normal procedures REV. 0 Normal procedures Introduction Assembling and disassembling the aircraft Daily check-up Preflight check-up Normal procedures and recommended speeds...

  • Page 26: Assembling The Wings

    SINUS motorglider Normal procedures REV. 0 Introduction This chapter provides information on everything needed to fly Sinus ultralight motorglider safely. Assembling and disassembling the aircraft CAUTION! Prior to each assembling or disassembling action Sinus ultalight motorglider must be placed inside a closed space. Under no circumstances attempt to assemble or disassemble any parts of the aircraft in the sun or at temperatures higher or as high as 20°C for you will not be able to...
  • Page 27 SINUS motorglider Normal procedures REV. 0 Disassembling the wings Three people again are needed to disassemble Make sure you tape the end attached to the the wings. wing not to spill any eventual leftover fuel over the fuselage or glass surfaces as substantial First block all three wheels for the fuselage damage may occur.
  • Page 28 SINUS motorglider Normal procedures REV. 0 Fitting the horizontal tail surfaces Horizontal stabilizer and elevator MUST be united during the following procedure. To fit the horizon- tal tail surfaces first set the trim handle inside the cockpit to full forward position. Make sure the pins,...
  • Page 29 SINUS motorglider Normal procedures REV. 0 Attaching the rudder Bring the rudder close to fuselage and fit it first onto the top and then to the bottom hinge. The rudder must then be fully deflected to one side to provide access to the rudder bolts. Use a self- securing, pre-glued M10 nut together with an aluminium washer and gently screw them onto the bolt using size 10 spanner.

  • Page 30: Daily Check-Up

    SINUS motorglider Normal procedures REV. 0 Daily check-up The daily check-up matches the preflight check-up. Preflight check-up WARNING! Every single check-up 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 check-up is the pilot from whom it is required to perform the check-up in the utmost thorough and precise manner.
  • Page 31 SINUS motorglider Normal procedures REV. 0 Engine, engine cover Cooling fluid level (models 582 & 912): half way to the top Oil quantity (model 912): within designated limits Injection oil quantity (optional oil injection pump): sufficient for the planned flight duration...
  • Page 32 SINUS motorglider Normal procedures REV. 0 Wingtip, lights Surface condition: pristine, no cracks, impact spots or bumps, no paint separations Wings’ trailing edge Surface condition: pristine, no cracks, impact spots, no paint and/or edge separations Mylar sealing tape between wing and aileron: undamaged and in position...

  • Page 33: Normal Procedures And Recommended Speeds

    SINUS motorglider Normal procedures REV. 0 In-cockpit preflight check-up Instrument panel and instruments: checked Fuses: screwed in position 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 34: Engine Start-Up

    SINUS motorglider Normal procedures REV. 0 Engine start-up Before engine start-up CAUTION! To ensure proper and safe use of aircraft it is essential for one to familiarise 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 35 SINUS motorglider Normal procedures REV. 0 Taxi Taxing technique does not differ from other taildragging aircrafts. Prior to taxiing it is essential to check wheel brakes for proper braking action. In case you expect taxiing to last, take engine warm-up time into account and begin taxiing imme- diately after engine start-up.
  • Page 36 SINUS motorglider Normal procedures REV. 0 Initial climb When airborne, engage brakes momentarily to prevent in-flight wheel spinning. Accelerate at full power and later maintain proper speed of climb. As you reach 90 km/h at above 50 meters , set flaps to 1...
  • Page 37 SINUS motorglider Normal procedures REV. 0 Descent and final approach Reduce speed to 90 km/h (48 kts), set propeller to minimum pitch setting (screw propeller pitch knob to the left fully) and set flaps to 1 position. Adjust engine power to maintain proper airspeed. Set trim to neutralise stick force if necessary.
  • Page 38 SINUS motorglider Normal procedures REV. 0 Crosswind approach and roundout CAUTION! Crosswinds prolong landing runway length (see chapter “Performance”). 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 39 SINUS motorglider Performance REV. 0 Performance Introduction Airspeed indicator calibration Take-off performance Climb performance Cruise Descent Landing performance Vg diagram Speed polar Additional technical data Noise levels...

  • Page 40: Airspeed Indicator Calibration

    SINUS motorglider Performance REV. 0 Introduction This chapter provides information on aircraft’s airspeed calibration, stall speeds and general per- formance. All data published was obtained from test flight analysis. Test pilots were instructed to control the plane simulating average pilot’s flying skills.
  • Page 41 SINUS motorglider Performance REV. 0 Effect of elevation The table below provides data about the effect of elevation on takeoff runway length. elevation (m) 1000 1500 atmosph. pressure (hPa) 1012 outside temperature (°C) 15,0 11,7 Takeoff runway length [m...
  • Page 42 SINUS motorglider Performance REV. 0 Headwind shortens Takeoff and Landing runway length by 8 meters with every 5 km/h (25 feet) of wind increase (e.g. provided there is a 10 km/h headwind on takeoff and landing, dis- (3 kts)

  • Page 43: Climb Performance

    SINUS motorglider Performance REV. 0 The graph below shows how takeoff runway length changes when affected by temperature chances. 250 820 200 650 150 500 Rotax 503 Rotax 582 100 330 Rotax 912 50 160 m ft outside temperature (°C)
  • Page 44 SINUS motorglider Performance REV. 0 Cruise Cruising at MTOM using 75% engine power in ICAO standard atmosphere at an elevation of 500 me- ters with flaps set to negative position, Sinus ultralight motorglider will provide you with (1650 feet)

  • Page 45: Landing Performance

    SINUS motorglider Performance REV. 0 Landing performance Landing runway length may vary depending on the elevation, gross weight, touchdown velocity, wind direction and how aggressive the braking action is. In following conditions: aircraft at MTOM, airport elevation 100 meters , wind calm;...

  • Page 46: Additional Technical Data

    SINUS motorglider Performance REV. 0 Additional technical data SINUS Model 503 Model 582 Model 912 63 km/h 63 km/h 63 km/h stall speed (flaps extended) (34,0 kts) (34,0 kts) (34,0 kts) 66 km/h 66 km/h 66 km/h stall speed (flaps retracted)

  • Page 47: Noise Levels

    SINUS motorglider Performance REV. 0 WARNING! Wing and propeller surfaces must be immaculately clean, dry and undamaged at all times. As all airfoils are laminar any impact spots, bumps and even a dirty (incl. water, snow...) surface may significantly lower flight performance. Stall speed, takeoff and landing runway length, sink rates and fuel consumption increase, while climb rates, ceiling, lift-over-drag ratio and endurance decrease.
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  • Page 49: Weight And Balance

    SINUS motorglider Weight and balance REV. 0 Weight and balance Introduction Weighing procedure Equipment list Determination of CG Sample CG calculation...

  • Page 50: Weighing Procedure

    SINUS motorglider Weight and balance REV. 0 Introduction This chapter provides information on aircraft’s weight and balance, which is essential for safe flying activity. Weighing procedure How to weigh the aircraft and later determine the CG correctly: Make sure all listed aircraft parts and appliances are installed and in position.
  • Page 51 SINUS motorglider Weight and balance REV. 0 Equipment list Aircraft’s empty weight data is unique for each and every Sinus ultralight motorglider produced. Sinus model: Serial number: Registration number: Installed appliances: Determination of CG Weight’s lever Weight (kg) Torque (kgcm)

  • Page 52: Sample Cg Calculation

    SINUS motorglider Weight and balance REV. 0 Sample CG 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 53 SINUS motorglider Weight and balance REV. 0 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 MTOW.
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  • Page 55 SINUS motorglider Aircraft and systems on board REV. 0 Aircraft and systems on board Introduction Cockpit levers Instrument panel Undercarriage Seats and safety harnesses Pitot-static lining Air brakes (spoilers) Power plant and propeller Fuel system Electrical system Engine cooling system...
  • Page 56 Sinus ideal for initial as well as for spinner. Standard propeller is BAM2, used, test- advanced flight training. All aileron, elevator ed and certified beforehand on other Pipistrel and flap controls are connected to the cabin aircraft. The VARIO propeller, offering in-flight controls using self-fitting push-pull tubes.
  • Page 57 SINUS motorglider Aircraft and systems on board REV. 0 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 GFK: 3 mm, 5 mm, 7 mm of thickness...

  • Page 58: Instrument Panel

    SINUS motorglider Aircraft and systems on board REV. 0 Cockpit levers Sinus ultralight motorlglider’s cockpit levers are divided into two groups: Individual control levers: pilot stick and rudder with belonging brake levers Joint control levers: throttle lever, chock lever, flap lever, trim lever, airbrakes lever, fuel valves, door levers, battery disconnection lever/ring and emergency parachute release handle.

  • Page 59: Seats And Safety Harnesses

    SINUS motorglider Aircraft and systems on board REV. 0 Sinus ultralight motorglider ships with two different types of standard instrument panels: the con- ventional panel and the glass panel (difference seen on previous page). The glass panel utilizes the power of Brauniger multifunction instrument to screen both flight and engine parameters.

  • Page 60: Power Plant And Propeller

    SINUS motorglider Aircraft and systems on board REV. 0 Power plant and propeller Sinus ultralight motorglider may be equipped with various three engines. Engine types: Engine: ROTAX 503 (two-stroke inline, two cylinders, 497 cm twin carburated - double electronic ignition...
  • Page 61 Propeller types: propeller Pipistrel BAM2: twin blade, fixed pitch composite propeller - diameter 1660 mm propeller Pipistrel VARIO : twin blade, variable pitch composite propeller - diameter 1620 mm VARIO propeller A variable pitch propeller significantly increases aircraft’s takeoff, cruise and glider performance.
  • Page 62 SINUS motorglider Aircraft and systems on board REV. 0 When taking-off, always make sure propeller is set to minimum pitch to ensure maximum engine efficiency. To set the propeller to minimum pitch, screw the propeller pitch knob located on the in- strument panel counter clockwise completely.

  • Page 63: Fuel System

    SINUS motorglider Aircraft and systems on board REV. 0 Fuel system description: vented wing fuel tanks with refuling aperture on top of the wings fuel selector valves: separated, one for each fuel tank gascolator: filter equipped with drain valve fuel capacity: 30 + 30 liters (std.) / 50 + 50 litres (optional)

  • Page 64: Electrical System

    SINUS motorglider Aircraft and systems on board REV. 0 Schematic of fuel system - model 912 (with fuel return circuit) Electrical system description: Double separated magneto ignition. Standard, 12 V circuit charges the battery and provides power to all appliances and instruments.
  • Page 65 SINUS motorglider Aircraft and systems on board REV. 0 Schematic of electrical system - all models...

  • Page 66: Engine Cooling System

    SINUS motorglider Aircraft and systems on board REV. 0 Engine cooling system Rotax 503 cooling system The Rotax 503 engine (Sinus ultralight motorglider Model 503) is aircooled by use of own fan. Cold air enters through the opening on the top engine cover and is forced to spread over the engine fins.
  • Page 67 SINUS motorglider Aircraft and systems on board REV. 0 Rotax 912 cooling system The Rotax 912 engine’s (Sinus ultralight motordlider Model 582) cylinders are watercooled. The cool- ing-air intake is located on the right-hand bottom part of the engine cover.

  • Page 68: Engine Lubrication System

    SINUS motorglider Aircraft and systems on board REV. 0 Engine lubrication system Rotax 503 and 582 are two-stroke engines and are adequately lubricated by oil/fuel mixture. Proper lubrication is ensured by adding 2% of syntetic of semi-syntetic oil into the fuel canister. However, both Rotax 503 and 582 may optionally be equipped with an oil injection pump.

  • Page 69: Handling And Maintenance

    SINUS motorglider Handling and maintenance REV. 0 Handling and maintenance Introduction Inspection periods Repairs and spare part replacements Preventative maintenance Special check-ups Draining and refuelling Connecting Auxilary power supplies Tie down Storage Cleaning Keeping your aircraft in perfect shape...

  • Page 70: Inspection Periods

    SINUS motorglider Handling and maintenance REV. 0 Introduction This chapter determines handling and (preventative) maintenance terms. Also, recommended ground handling is presented. Inspection periods See “Service manual”. Repairs, spare part replacements and preventative maintenance All major repairs and spare part replacements MUST be done by authorised service personnel.
  • Page 71 SINUS motorglider Handling and maintenance REV. 0 fist 5 1.000 10.000 daily hours hours hours hours hours hours hours FUSELAGE surface and structure condition elevator control tube bearing undercarriage struts attaching points doors, hinges rudder control wires and hinges CABIN control levers, instr.
  • Page 72 SINUS motorglider Handling and maintenance REV. 0 first 5 1.000 10.000 daily hours hours hours hours hours hours hours ENGINE see enclosed Rotax engine manual for detailed engine maintenance information. In addition to Rotax manual: two-stroke engines (overhaul every 300 hours) four-stroke engines (overhaul every 1.200 hours)
  • Page 73 SINUS motorglider Handling and maintenance REV. 0 first 5 1.000 10.000 daily hours hours hours hours hours hours hours OIL AND WATER LINES oil and cooling fluids level oil and cooling fluids leakage four stroke engine oil (and engine...
  • Page 74 SINUS motorglider Handling and maintenance REV. 0 Perform the adjustment as follows: Unscrew and remove the inner horizontal bolt of the airbrake’s plate. Do not lose any parts! Lift the airbrake in order to make room for further operation.
  • Page 75 SINUS motorglider Handling and maintenance REV. 0 Schematic of hydraulic brakes’ lining Poor braking action In case you notice poor braking action even when hydraulic brake levers are depressed fully, it is not necessary the air bubbles in the hydraulic lining, which is causing the problem.
  • Page 76 SINUS motorglider Handling and maintenance REV. 0 Adjustment of tail wheel steering clutch stiffness To adjust the stiffness of tail wheel stearing clutch you need two allen keys (a.k.a. hex-wrench, inbus- key). On top of the wheel fork you will notice a ring with two tubes welded to each side with hex- bolts inside.
  • Page 77 SINUS motorglider Handling and maintenance REV. 0 CAUTION! Use authorised plastic canisters to transport and store fuel only! Metal canisters cause for water to condensate on the inside, which may later result in engine failure. Should you be experiencing slow refuelling with the provided electrical fuel pump, you should re- place the filter below the pump casing.

  • Page 78: Keeping Your Aircraft In Perfect Shape

    SINUS motorglider Handling and maintenance REV. 0 Tie down Head the aircraft against the wind and retract flaps fully. Block all three wheels. Remove the caps covering mounting holes on the bottom part of the wing (located 450 cm from the fuselage) and carefully screw in the two screw-in rings provided.
  • Page 79 SINUS motorglider Handling and maintenance REV. 0 3) When flying in regions with a lot of bugs in the air, you should protect the leading edges of the airframe before flight (propeller, wings, tail) with Antistatic furniture spray cleaner: “Pronto (transpar- ent), manufacturer: Johnson Wax (or anything equivalent) –...
  • Page 80 SINUS motorglider Handling and maintenance REV. 0 Polishing by hand Use only the highest quality polishing pastes WITHOUT abrasive grain, such as Sonax Extreme or similar. Start polishing on a clean, dry and cool surface, never in the sunshine! Machine polishing requires more skills and has its own particularities, therefore it is recommended to leave it to a professional.
  • Page 81 SINUS motorglider Appendix REV. 0 Appendix Parachute rescue system: use, handling and maintenance How fast is too fast Myth: I can fully deflect the controls below maneuvering speed! Aircraft familiarisation Conversion tables Preflight check-up pictures Sinus ultralight motorglider checklist...

  • Page 82: System Description

    SINUS motorglider Appendix REV. 0 Parachute rescue system: use, handling and maintenance System description The GRS rocket charged parachute rescue system provides you with a chance to rescue yourself and the aircraft regardless of the height, velocity and nose attitude.
  • Page 83 SINUS motorglider Appendix REV. 0 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 situation for the first time, where a proper landing and the determination of the landing site are out of your control.
  • Page 84 Based on two recent unfortunate events, where two pilots lost their newly acquired Sinus and Virus 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 aircrafts.
  • Page 85 SINUS motorglider Appendix REV. 0 At high speeds the air circulating the airframe should cause tremendous noise. Wrong! In fact the noise is caused by drag. Modern aircrafts like Sinus and Virus, manufactured of com- posite materials, have so little drag, that they actually sound quieter than you would expect.
  • Page 86 • 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 d.o.o. wishes you happy landings!
  • Page 87 SINUS motorglider Appendix REV. 0 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 88 SINUS motorglider Appendix REV. 0 Aircraft familiarisation This chapter has been written to assist owners/pilots of Sinus ultralight motorglider on their quest to learn how to safely and efficiently fly this aircraft. It will cover most operations the aircraft can offer in an order established in Pilot and maintenance manual’s chapter Normal procedures and recommended speeds.
  • Page 89 SINUS motorglider Appendix REV. 0 Take off and initial climb Having checked and set all engine and aircraft parameters, you should be ready for take off by now. Reverify both fuel valves be open and the spoilers (airbrakes) retracted and locked (handle full up).
  • Page 90 SINUS motorglider Appendix REV. 0 Descent Descending with Sinus ultralight motorglider is the stage of flight where perhaps most care must be taken. As the aircraft is essencially a glider, it is very slippery and builds up speed very fast.
  • Page 91 SINUS motorglider Appendix REV. 0 Should you bounce off the runway after touch-down, do not, under any circumstances, push stick forward or retract spoilers (airbrakes). Spoilers (airbrakes) stay fully extended, the stick stays where it is. Bouncing tends to attenuate by itself anyhow.
  • Page 92 SINUS motorglider Appendix REV. 0 Soaring Soaring is a learned skill. Your soaring performance is vastly dependant on your weather knowl- edge, flying skills and judgement. “Good judgement comes from experience. Unfortunately, the experience usually comes from bad judge- ment.”...
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  • Page 94: Conversion Tables

    SINUS motorglider Appendix REV. 0 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 1,61 66,71 19,42 127,87...
  • Page 95 SINUS motorglider Appendix REV. 0 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 12,34 12,86 13,37 13,89...
  • Page 96 SINUS motorglider Appendix REV. 0 ICAN (international comitee for air navigation) temperatures, relative pressure, relative density and CAS to TAS correction factors as related to altitude Altitude Temperature Relative Relative Cor. factors pressure density feet metres °C °F -2.000...
  • Page 97 SINUS motorglider Appendix REV. 0 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 10,97 118,1 21,03 226,37...
  • Page 98 SINUS motorglider Appendix REV. 0 air pressure as related to altitude altitude (m) pressure (hPa) pressure (inch altitude (m) pressure (hPa) pressure (inch -1000 1139,3 33,6 1300 866,5 25,6 -950 1132,8 33,5 1350 861,2 25,4 -900 1126,2 33,3 1400...
  • Page 99 SINUS motorglider Appendix REV. 0 ICAO standard atmosphere n*10 1/S d (m 2 /s) (kg/m 4 ) (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 0,957 344,2 13,4 -900 -2953...
  • Page 100 SINUS motorglider Preflight check-up pictures REV. 0 Engine cover Gascolator Propeller, Spinner Undercarriage Undercarriage, RH wheel Right wing - leading edge Right wingtip - lights Right wing - trailing edge...
  • Page 101 SINUS motorglider Preflight check-up pictures REV. 0 Right spoiler Fuselage (RH side) Fuselage Fuselage, continued Horizontal tail surfaces Vertical tail surfaces Incorrect - door not secured Correct - door secured...
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  • Page 103 Sinus ultralight motorglider Flight Manual and Maintenance Manual. This supplemental sheet containes four (4) valid pages. This is the original document issued by Pipistrel d.o.o. Ajdovscina. Should third-party translations to other languages contain any inconsistencies, Pipistrel d.o.o. Ajdovscina denies all responsibility.
  • Page 104 In case of aircraft damage or people injury resulting form disobeying instructions in this document PIPISTREL d.o.o. denies any responsibility. All text, design, layout and graphics are owned by PIPISTREL d.o.o., 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 d.o.o.
  • Page 105 Supplemental Sheet for Sinus motorglider nose-wheel edition REV. 0 Page 33, 35. - Normal procedures and recommended speeds Taxi Taxing technique does not differ from other aircraft equipped with a stearable nose wheel. Prior to taxiing it is essential to check wheel brakes for proper braking action.
  • Page 106 wwwpipistrel.si Supplemental Sheet for Sinus motorglider nose-wheel edition REV. 0 Aircraft and systems on board Page 55. - Undercarriage The undercarriage is a tricycle type with two main brake-equipped wheels mounted on struts and a stearable nose wheel. distance between main wheels 1,60 m distance between main and nose wheel 1,49 m...
  • Page 107 Sinus ultralight motorglider checklist...
  • Page 108 SINUS motorglider REV. 0 This page is intentionally left blank.

  • Page 109: Warranty Statement

    - 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 110 Pipistrel d.o.o. Ajdovščina podjetje za alternativno letalstvo Goriška cesta 50a 5270 Ajdovščina Slovenija tel: +386 (0)5 3663 873 fax: +386 (0)5 3661 263 e-mail: pipistrel@siol.net www.pipistrel.si...

This manual is also suitable for:

Sinus 582Sinus 912

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