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Flylight Airsports Skyranger Nynja 912UL Operator And Maintenance Manual

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Skyranger Nynja 912UL / ULS Operators and
Maintenance Manual
Issue 2(E)
Manufacturer
Flylight Airsports Ltd, Sywell Aerodrome,
Sywell Northants,NN6 0BT
United Kingdom
This manual refers To Skyranger Nynja:
Serial Number....................................
National Registration:...........................
All pilots should read this manual before flying as pilot in command of the aircraft to which
it refers.
1
Nynja Operators Manual issue 2 (E) 1.2

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Summary of Contents for Flylight Airsports Skyranger Nynja 912UL

  • Page 1 Skyranger Nynja 912UL / ULS Operators and Maintenance Manual Issue 2(E) Manufacturer Flylight Airsports Ltd, Sywell Aerodrome, Sywell Northants,NN6 0BT United Kingdom This manual refers To Skyranger Nynja: Serial Number……………………………… National Registration:……………………… All pilots should read this manual before flying as pilot in command of the aircraft to which it refers.
  • Page 2 Nynja Operators Manual issue 2 (E) 1.2...

  • Page 3: Table Of Contents

    Contents Introduction ..................5 Description of the Aircraft ..............6 Limitations .................... 9 Flying the Nynja .................. 11 Performance ..................22 Emergencies ..................25 Rigging and De-rigging ..............27 Weight and Balance ................29 Maintenance ..................32 10. Repairs ....................47 11.
  • Page 4 TABLE OF AMENDMENTS Date Page number Change / addition 20.06.18 Change to show performance values at 450 and 472.5Kg at para 5.5 now version 1.2 Nynja Operators Manual issue 2 (E) 1.2...

  • Page 5: Introduction

    Introduction The Nynja is a three-axis microlight aeroplane. This manual is not intended to teach you to fly the aircraft, or to build it. Learning to fly should be accomplished under the supervision of a flying instructor experienced on the type. A separate build manual exists to instruct you in building the Nynja from a kit.

  • Page 6: Description Of The Aircraft

    Description of the Aircraft Wing Area: 12.8m2 Wing Span: 8.9m (with winglet type wing tips) Wing Standard Mean Chord: 1.5m Manufacturer’s Standard Empty Weight: 256 (912UL) - 271 Kg (912ULSP) Max. Take-Off Weight: 450kg / 472.5KG if fitted with an Airframe Mounted Total Recovery Parachute System Wing Loading (Max.
  • Page 7 Engine description / Limitations Rotax 912UL Rotax 912ULS Reduction gear type / ratio Gearbox / 2.27:1 Gearbox / 2.43:1 Intake system Air filters (K&N) Air filters (K&N) Exhaust system Weight 80Kg installed approx 83Kg installed approx Max power 59.6 KW at 5800 RPM 73.5 KW at 5800 RPM Max.
  • Page 8 Ancestry The Skyranger was conceived by Philippe Prevot in 1991. The first 200 examples were manufactured under licence by Synairgie between 1994 and 1998. The manufacture of the Skyranger was moved to Aeros in the Ukraine in 1998, incorporating many developments in the design. An updated shorter wing model –...

  • Page 9: Limitations

    Limitations Introduction This section includes the basic operating limitations for the Nynja. Units When noting limitations, it is important to ensure that the limitations which you are using use the same units and calibrations as the instruments in the cockpit. The limitations shown below use knots CAS (Calibrated Airspeed);...
  • Page 10 3.3.7 Do not fly if any ice is present on the airframe. Performance, stability and handling will all be degraded with dangerous consequences. Do not fly the aircraft into known icing conditions. Flight Limitations and key performance speeds 3.4.1 Never exceed speed, Vne, is 117 kn CAS IAS] 3.4.2 Manoeuvring speed, Va is 74 kn CAS IAS]...

  • Page 11: Flying The Nynja

    Flying the Nynja Pre-Flight Inspection Pre flight inspection – Check A, is detailed in the maintenance section. Starting 4.2.1 Before starting the engine ensure that the max takeoff weight will not be exceeded (from fuel/weight placard). 4.2.2 Pre start check: Security Aircraft, Crew, Equipment, Secure, brakes ON.
  • Page 12 4.3.4 Taxy checks When taxying check:  Brakes functioning  Compass moving when aircraft turned  Slip ball moving when aircraft turned  Engine temps warming, no limits exceeded Nynja Operators Manual issue 2 (E) 1.2...
  • Page 13 Pre take-off checks (vital actions) Prior to take-off, it is recommended that the following pre takeoff check is used. Position the aircraft into wind, brakes held on C - Controls Check controls for full and free movement  Check visually that the controls are moving in the correct sense ...
  • Page 14 Normal takeoff 4.5.1 For a non performance takeoff, into wind, flaps can either be left in the fully up –CR (cruise) position, or with the first stage – TO (takeoff) position. 4.5.2 When lined up and rolling straight smoothly apply full power. Keep straight with rudder, ailerons neutral and with the elevator slightly up to reduce the weight on the nosewheel.
  • Page 15 4.6.3 When clear of obstacles allow the aircraft to accelerate to 58 knots CAS IAS], and at 200 feet AGL select CR flap. 4.6.4 It is important to always pick an abort point before attempting to take off from a short field. If the aircraft approaches the abort point before lifting, the takeoff should be aborted by fully closing the throttle and braking firmly.
  • Page 16 Normal landing 4.9.1 Generally the Nynja should be landed from an approach speed of about 52knots CAS [ IAS], although in turbulent conditions handling can be improved by increasing this by 5-10 knots. Full flap (LD) position is the standard landing setting. As flap is selected a gentle pull on the stick will be required to maintain constant airspeed.
  • Page 17 4.11 Soft field landing 4.11.1 Fly the approach as in 4.11.1 above. 4.11.2 Fully hold off and try to touch down gently, and as slow as possible. During the ground roll avoid braking and progressively apply full up elevator to keep the nose wheel up for as long as possible. Continue to hold up elevator when the nose wheel is on the ground.
  • Page 18 should be applied to ensure adequate steerage from the nose wheel and to avoid yawing into wind. 4.13 Cruise The Nynja has a large range of cruise speed. At the higher values fuel consumption will be correspondingly higher. Cruise is set up in the normal way by selecting the required attitude and power and trimming off any residual pitch forces.
  • Page 19 4.16.1 Slow flight characteristics Slow flight indications include:  Lightening of controls accompanied by reduced effectiveness  Reduced airflow noise (most noticeable at low power settings)  High nose attitude (most noticeable at high power settings)  Rearwards position of control stick ...
  • Page 20 4.16.5 Recovery Recovery is simply effected by moving the stick forwards to reduce angle of attack. Any tendency to wing drop should be countered by application of opposite rudder sufficient to prevent further yaw towards the dropping wing. These two actions should be performed simultaneously.
  • Page 21 4.19 Flight with doors open or removed If fitted with the two-piece door option the Nynja may be flown with the top half of the door open. The maximum speed for flight with the doors open is 72kn CAS [ IAS].

  • Page 22: Performance

    Performance Introduction The following data was obtained in the original UK prototype. When using the data for planning purposes, apply conservative safety factors. Climb Speed for best rate of climb is 58kn CAS [ IAS]. Best angle of climb speed (Vx) is 45kn CAS [ IAS].
  • Page 23 Performance values Table below represents typical performance at sea level 912UL 912ULS Best rate of climb 900FPM 1140FPM Takeoff distance 353m at 472.5Kg 308m at 472.5Kg 322m at 450Kg 280m at 450Kg Landing distance 296m at 472.5Kg 296m at 472.5Kg 282m at 450Kg 282m at 450Kg Stall speed Vs0...
  • Page 24 Landing performance: Using the figures above, the following additional safety factors should be applied to the distance to clear a 15metre obstacle on the approach. If unsure, always use these factors to ensure you have sufficient runway to avoid using the considerately provided hedge at the far end of the runway.

  • Page 25: Emergencies

    Emergencies Engine Failure Before Take-Off (aborted takeoff) Close throttle, apply brake, ignitions (mags) off. Engine Failure After Take-Off (EFATO) Lower nose, to establish an approach speed of at least 52 kn CAS IAS] land straight ahead or near to straight ahead, DO NOT ATTEMPT TO TURN BACK from below 500ft.
  • Page 26 Emergency Landing in Trees Ensure harness(es) tight, try for low bushy trees as far as possible. Try to impact with as steep a nose-up attitude as possible. Inadvertent Flight in Hail or heavy rain Reduce power to avoid propeller damage, fly out of the weather as soon as possible.

  • Page 27: Rigging And De-Rigging

    Rigging and De-rigging To attach the wings to the Nynja:  With the wing tip raised to approximately the rigged height, slide the wing root into place to engage in the root brackets  Insert the wing root fixing bolts ...
  • Page 28 Use of wing fold mechanism Use of the optional wing fold mechanism is detailed in the wing fold instructions document, and if fitted these instructions should be appended to this manual. Nynja Operators Manual issue 2 (E) 1.2...

  • Page 29: Weight And Balance

    Weight and Balance Introduction A standard unmodified Nynja has a wide centre of gravity range which normally allows for most if not all combinations of fuel, crew and baggage within the loading limitations and within the maximum takeoff weight without exceeding the permitted CG limits. However, pilots should be aware that stick forces and displacements will become lighter with aft CG (typically a heavy crew and full fuel / baggage) and heavier with forward CG (typically low fuel, light pilot...
  • Page 30 Weighing The Nynja will have been weighed when first built, and must be re- weighed at intervals as laid down by local regulations, or when it is modified or repaired). Calibrated scales should be used. Details of the weighing must be entered in the aircraft logbook. The results can then be tabulated and calculated to produce Total empty weight and total empty moment –...
  • Page 31 A spreadsheet can be used to verify the range of loadings and cg positions obtainable. The BMAA have such a spreadsheet available on their website – form AW028 which we recommend for this purpose. If additional items or modifications are fitted then the weight and balance report should be amended –...

  • Page 32: Maintenance

    Maintenance 9.1 Introduction This manual details recommended maintenance. However maintenance requirements will depend upon conditions of storage and type of use. Examples of harsh use may include: Storage outside Use near salt water Regular use from unprepared rough fields Regular transport by trailer Learning to fly In such cases more regular inspections and component replacement may be required in order to keep the aircraft in an airworthy condition.
  • Page 33 Recording and certifying maintenance 9.3.1 All maintenance actions should be recorded in the aircraft airframe and engine log book(s). Separate worksheets and invoices for parts / work, should be kept in a file that can be referenced in conjunction with the logbook entries. 9.3.2 Each logbook entry detailing maintenance should be accompanied by a signature of the person or persons that have carried out the work.
  • Page 34 9.6 Inspections and when to carry them out 9.6.1 There are four types of routine inspections: 1. Check A – this is a daily inspection. A sub version of this is a subsequent preflight inspection, which may be slightly less detailed. 2.
  • Page 35 Check A 9.7.1 Engine - carry out an engine pre-flight inspection following the Instructions contained in the Rotax engine manual. 9.7.2 Aircraft - The following is a brief summary of the minimum pre-flight Inspection. If you are unsure, it does no harm to increase the number of items on your inspection.
  • Page 36 Starboard undercarriage leg undistorted  Undercarriage drag strut and shoes secure  Tyre condition and pressure  Security of wheel spat  Check for evidence of hydraulic leaks  Security of wing strut lower attachment bolt  Jury strut brackets ...
  • Page 37 Routine maintenance worksheet Nynja Airframe check B/C worksheet Aircraft serial no / Reg:……………………….. Airframe hours at check……………….. required tick Fuselage Check all pressure instruments for cracks, leaks and stiction 50hrs Check all fuselage tubes for cracks, dents, corrosion or deformation 50hrs Check all fasteners for security, condition and fretting 50hrs...
  • Page 38 Check spinner and back plate for security and condition 50hrs required tick Fuel system Inspect inside tanks for dirt / contamination – clean if required 50hrs Check tanks for security and condition 50hrs Check fittings for perishing rubber bungs / leaks 50hrs Inspect all fuel pipes for perishing, abrasion and security of connections 50hrs...
  • Page 39 Check hinges – condition and security 50hrs Lubricate hinges 50hrs Check fabric and stitching condition 50hrs Grease turnbuckles exterior for corrosion protection. 50hrs Check condition and tension of bracing cables. 50hrs Check condition and tension of Elevator cables 50hrs Check security and condition of trim tab 50hrs Check operation of trim tab and hinge, lever friction 50hrs...
  • Page 40 Check engine mounting structure for condition and security. 50hrs Check engine mount rubbers for excessive movement (see specific check advice below) 50hrs Check engine mount bolts wire-locking. 50hrs Check engine cowlings for condition, security of mounting fasteners, check fire resistant paint isn’t worn 50hrs off areas.
  • Page 41 Component Life The following components have a calculated fatigue or wear life. They should be replaced at the following intervals: Lower Lift strut Bolts Upper Lift strut bolts 1000 Leading and Trailing edge to fuselage 1000 attachment bolts Wing fold spar attachment pins Control stick pivot bolt 1000 Control stick torque tube forward hinge bolt...
  • Page 42 the fabric – warmed gently with a hairdryer to fully activate the adhesive. 9.11.2 Single broken stitches can result in ‘running’, where a large area loses tension. Securing the broken end with a drop or two of glue will prevent this. 9.11.3 Any greater damage must be repaired using approved processes.
  • Page 43 9.12.9 Lexan glazing is sensitive to product in order to remain clear and streak free. Use a suitable cleaner / polish. Warning - Fuel spillage or contact with Loctite will cause almost instant cracking of Lexan. 9.13 Engine mount rubbers 9.13.1 Engine mount rubbers slowly wear out over time.
  • Page 44 9.15 Checks following a heavy landing 9.15.1 Main Undercarriage - The main gear legs will splay outwards if overloaded. Usually a heavy landing will be slightly wing down and one leg will distort more than the other. So initially observe from the front and check for symmetry.
  • Page 45 Stand just outside the cockpit with doors open Hold the wing lift struts feel each end of the SKR.27’s for movement – where the insert goes into the tube, and where the insert attaches to the airframe. If noticeable movement exists then there is damage, and the damaged part must be replaced.
  • Page 46 9.17.3 Split pins should not be used more than once. 9.17.4 Unless otherwise specified airframe bolts should be tightened to remove free-play, without causing distortion of the parts/ ovalising of tubes. Nynja Operators Manual issue 2 (E) 1.2...

  • Page 47: Repairs

    Repairs 10.1 If the aircraft is damaged, it is imperative that the full extent of the damage is quantified by an appropriately qualified person, and in accordance with local regulations. 10.2 Damage can often extend well beyond the immediately obvious. 10.3 Careful strip inspection of components will often be prudent.
  • Page 48 10.10 Repairs to Tyres. An inner tube puncture may be repaired. If there is damage to the tyres which shows the inner canvas, replace the tyre in question. 10.11 Damage to the Fuel Tank. The fuel tank should be drained and removed from the aircraft. The fuel tank should be replaced.

  • Page 49: Control Deflections

    Control deflections Elevator Up: 25 ± 2 Down: 25 ± 2 Ailerons Up: 25 ± 2 Down: 20 ± 2 Ailerons neutral is with aileron trailing edges level with flap trailing edges at zero° flap setting Rudder Left: 25 ± 2 Right: 25 ±...

  • Page 50: Vital Statistics

    Vital Statistics A description of the aircraft is at Section 2. See also the 3 view at the beginning of this handbook The following describes the basic dimensions of the aircraft:- Length 5.9m Height 3.25m Span 8.5m Mean chord 1.5m Wing area 12.8m2 Dihedral angle...
  • Page 51 ANNEX A ENGINE MANUAL The operators and maintenance manual for the engine fitted to this aircraft is to follow this page. Nynja Operators Manual issue 2 (E) 1.2...
  • Page 52 Nynja Operators Manual issue 2 (E) 1.2...
  • Page 53 ANNEX B WEIGHT AND BALANCE REPORT Aircraft serial number……………………. Date of weighing………………………….. Carried out by……………………………………. Results: Item weight arm Moment (Weight x arm) Nosewheel +1.45 Main wheel left Main wheel right Total empty Total weight moment Nynja Operators Manual issue 2 (E) 1.2...
  • Page 54 Nynja Operators Manual issue 2 (E) 1.2...
  • Page 55 Final operational weight and balance templates Item weight Moment (weight x arm) Empty weight Crew +0.15 Fuel -0.29 baggage -0.29 Total weight Total moment CG position = Total moment / Total empty weight = Centre of Gravity position:…………. Item weight Moment (weight x arm) Empty weight...
  • Page 56 Nynja Operators Manual issue 2 (E) 1.2...
  • Page 57 ANNEX C MODIFICATIONS FITTED TO THIS AIRCRAFT SINCE INITIAL PERMIT ISSUE Modification approval sheets are to follow this page Modification Description Sign and date reference incorporated Nynja Operators Manual issue 2 (E) 1.2...
  • Page 58 Nynja Operators Manual issue 2 (E) 1.2...
  • Page 59 ANNEX D INSTRUCTIONS AND MANUALS FOR OTHER DEVICES FITTED TO THIS AIRCRAFT Description Issue or Approval Mod No., date or original equipment Nynja Operators Manual issue 2 (E) 1.2...
  • Page 60 Nynja Operators Manual issue 2 (E) 1.2...

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