background image

Nynja Operators Manual issue 2 (E) 1.2 

29 

8. 

Weight and Balance 

8.1   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 
only).  Also at aft Cg, the hands off stability will be reduced.  Flying 
outside of the permitted CG limits at either extreme is potentially 
extremely dangerous and should not be attempted in any 
circumstance.  

8.2  CG Datum and weighing attitide   

The Nynja CG datum is the main wheel axles. Positive values are 
forward of datum. 

Weighing attitude: levelled so that the horizontal tailplane trailing edge 
tube (forward of the elevator) is to be 8mm below the horizontal 
tailplane leading edge tube. 

8.3   CG moment arms and limits 

  

Nosewheel:   

+1.45M 

 

Crew:  

 

+0.15M 

 

Fuel tanks:   

- 0.29M 

 

Baggage bag:  

- 0.29M 

 

Forward CG limit:  + 0.38M 

 

Aft Cg limit:  

+ 0.21M 

 

8.4    loading limitations: 

 

Min pilot weight:   55kg 

 

Max pilot weight:  120Kg per seat (within MTOW of 450/472,5Kg) 

 

Max baggage:  

10Kg in baggage bag 

Содержание Skyranger Nynja 912UL

Страница 1: ...e 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 sho...

Страница 2: ...Nynja Operators Manual issue 2 E 1 2 2...

Страница 3: ...22 6 Emergencies 25 7 Rigging and De rigging 27 8 Weight and Balance 29 9 Maintenance 32 10 Repairs 47 11 Control deflections 49 12 Vital Statistics 50 Annex A Engine Manual Annex B Weight and balanc...

Страница 4: ...Nynja Operators Manual issue 2 E 1 2 4 TABLE OF AMENDMENTS Date Page number Change addition 20 06 18 23 Change to show performance values at 450 and 472 5Kg at para 5 5 now version 1 2...

Страница 5: ...repairs Any modifications to this must be approved by the relevant national authority or its delegated body for the purpose 1 4 The licenses which would be required to fly this aircraft are subject t...

Страница 6: ...nglet 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 Par...

Страница 7: ...KW at 5500 RPM 69 KW at 5500 RPM Power available at max permissible RPM 58 KW at 5500 RPM 69KW at 5500 RPM Max CHT 120C wet sender type 120C wet sender type Fuel Specifications 90 RON minimum unleaded...

Страница 8: ...e is covered in non structural glassfibre panels 2 3 Flying Controls 2 3 1 Pitch control is by fore aft movement of the control stick with movement transmitted via cables to a conventional elevator 2...

Страница 9: ...m A method for doing this can be found here https www bmaa org files til_027_avionics pdf IAS Calibration Card for Nynja _______ Kn CAS Calibrated 33 5 Vso 36 VS1 43 min sink 45 Best climb angle 52 Be...

Страница 10: ...speed Vfe is 70 kn CAS IAS 3 4 4 Door open limit speed is 72 kn CAS IAS 3 4 5 Speed for best rate of climb 58kn CAS IAS 3 4 6 Speed for best climb angle 45kn CAS IAS 3 4 7 Maximum Bank angles are 60...

Страница 11: ...for around 5 10 seconds until the first indication of oil pressure rising 4 3 Taxying 4 3 1 Before Taxying ensure that the engine has run for at least 2 minutes from cold Do not use high RPM until the...

Страница 12: ...Operators Manual issue 2 E 1 2 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 exce...

Страница 13: ...nts are serviceable minimum operating temps Check choke is OFF Set 3000 RPM and check each ignition in turn max RPM drop 150 Check for smooth idle around 1500 1700 RPM Increase power to max brakes wil...

Страница 14: ...will require a gentle push on the stick to maintain a constant airspeed Therefore after the flap change re trimming may be required 4 5 5 When in the climb due to the excellent climb rate the nose is...

Страница 15: ...t before adopting the climbing attitude At 200 feet AGL select CR flap 4 7 2 It is important to always pick an abort point before attempting to take off from a soft field If the aircraft approaches th...

Страница 16: ...d this may cause a tendency to balloon and will cause more runway than expected to be used 4 10 Short field landing 4 10 1 Select full flap LD position and set up a powered approach at around 45 50 kn...

Страница 17: ...the runway Round out and hold off like this and touchdown into wind wheel first Try to land after a short hold off without allowing the airspeed to decay too much This will assist in maintaining good...

Страница 18: ...472 5Kg takeoff weight 4 15 Flight in Turbulence The Nynja has powerful controls and handles turbulence well However do not fly above the manoeuvre speed of 74 knots CAS IAS in strong turbulence Below...

Страница 19: ...by a mushing descent in heavy buffet or nose drop 4 16 3 Recovery Recovery is effected in the standard manner by moving the stick forwards to reduce angle of attack and simultaneously applying full po...

Страница 20: ...permitted in this aircraft 4 18 Departures from Controlled Flight 4 18 1 The Spin Deliberate spinning of the Nynja is prohibited However it is possible through gross mishandling of the aircraft to ina...

Страница 21: ...lance sideslips 4 19 2 Pilots should be aware that as the doors are opened the aircraft will experience a tendency to pitch up slightly and re establish trim some 5kn or so slower 4 19 3 The Nynja can...

Страница 22: ...rcraft the best climb speeds should not vary significantly 5 3 Glide Speed for best glide angle is 52kn CAS IAS at which a glide ratio of around 9 to 1 may be expected Flying a little slower at 43kn C...

Страница 23: ...ditional safety factors should be applied to the distance to clear a 15metre obstacle If unsure always use these factors to ensure you have sufficient take off distance available Per 1000 ft runway he...

Страница 24: ...sea level multiply by 1 05 For every 100C above 150C air temperature multiply by 1 05 For every 2 of downslope multiply by 1 1 If the runway is tarmac or concrete multiply by 1 2 If the ground is sof...

Страница 25: ...engine failure and attempt re start e g ignition switches fuel cock lack of fuel pressure if field is flat land into wind otherwise uphill Use brakes as appropriate 6 4 Engine Fire in Flight Close fue...

Страница 26: ...er damage fly out of the weather as soon as possible 6 9 Inadvertent Flight in Icing Conditions Fly out of conditions as soon as possible land as soon as possible 6 10 Use of Airframe mounted total re...

Страница 27: ...ard in cockpit on central upright Final inspection of all nuts and bolts cable routing and attachments 7 2 To remove the wings from the Nynja Disconnect aileron cables Disconnect pitot line Disconnect...

Страница 28: ...s Manual issue 2 E 1 2 28 7 4 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...

Страница 29: ...at aft Cg the hands off stability will be reduced Flying outside of the permitted CG limits at either extreme is potentially extremely dangerous and should not be attempted in any circumstance 8 2 CG...

Страница 30: ...t Weight x arm Nosewheel 75 1 45 108 75 Main wheel left 95 0 0 Main wheel right 95 0 0 Total empty weight 265 Total moment 108 75 Example weights and worked calculations in red Once you have the empty...

Страница 31: ...e recommend for this purpose If additional items or modifications are fitted then the weight and balance report should be amended either calculated or by re weighing Weighing should be carried out wit...

Страница 32: ...2 1 The Nynja has been designed and conceived to be maintained by a person without specific training in mechanics However some mechanical experience is desireable and persons with limited mechanical...

Страница 33: ...he definition of such a person will be defined by local regulations Examples of tasks that are considered flight critical are Disassembly reassembly of primary structure rigging derigging as defined p...

Страница 34: ...ooner This inspection may be also be extended by 10 5 hours 3 Check C Once per year timed to co incide with the annual permit inspection or 100 hours whichever comes sooner This inspection may be also...

Страница 35: ...own within 24 hrs drain a small amount of fuel from the drain tap using a standard tool and check for water Engine bay Remove cowling Check all items as in engine manual at Annex B Check security of a...

Страница 36: ...and cables Trim tab horn and cables Rudder and hinges horns and cables Condition of tail surface coverings General alignment of vertical and horizontal tail surfaces Condition of bracing wires and th...

Страница 37: ...ity and condition 50hrs Check doors for security and condition cracks in lexan operation of latches 50hrs Check windscreen for security and condition cracks in lexan 50hrs Undercarriage required tick...

Страница 38: ...nking 50hrs Check all fasteners for condition and security 50hrs Check lift struts for straightness dents corrosion and fretting security and condition of fasteners 50hrs Check jury struts for straigh...

Страница 39: ...ubricate hinges 50hrs Check rudder operation push tail down to free nosewheel no excessive friction and centring on release 50hrs Check condition and security of fin extension 50hrs Check fabric and s...

Страница 40: ...lts wire locking 50hrs Check engine cowlings for condition security of mounting fasteners check fire resistant paint isn t worn off areas 50hrs General required tick Clean all accessible aluminium str...

Страница 41: ...posed to UV light and therefore requires more care to ensure a long service life 9 10 2 Prolonged outside uncovered storage is not recommended 9 10 3 Covering fabric and its stitching can be tested wi...

Страница 42: ...the aircraft after use before storage But avoid putting the aircraft away wet in a closed hangar with reduced ventilation 9 12 3 Proprietary car wash wax cleaning products are generally suitable for w...

Страница 43: ...in the mounting structure indicates that the rubber should be replaced 9 14 Fuel tanks 9 14 1 Standard fuel tanks are clear polyethylene Taking off the tank caps results in the ability to look directl...

Страница 44: ...y not be readily apparent from an external inspection The weakest part is where the leg wastes down in size to accept the suspension rubbers If it bends here it will usually result in increased fricti...

Страница 45: ...od conditions may not require this for 10 years and those stored used in poor conditions may require it sooner 9 16 2 Essentially then it will be on condition but don t extend this simply for financia...

Страница 46: ...al issue 2 E 1 2 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...

Страница 47: ...raft like the Nynja it is normally far simpler and cheaper to replace the damaged component 10 5 Repairs to the Engine These should be carried out in accordance with specific Rotax instructions 10 6 R...

Страница 48: ...yres 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...

Страница 49: ...rons neutral is with aileron trailing edges level with flap trailing edges at zero flap setting Rudder Left 250 20 Right 250 20 Elevator trim tab Up 350 20 Down 350 20 Flaps 00 80 190 15mm between sid...

Страница 50: ...ibes 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 1 20 Sweepback angle 00 Washout 0 10 Fin area 0 4m2 Rudder area 0 46m2 Hori...

Страница 51: ...Nynja Operators Manual issue 2 E 1 2 51 ANNEX A ENGINE MANUAL The operators and maintenance manual for the engine fitted to this aircraft is to follow this page...

Страница 52: ...Nynja Operators Manual issue 2 E 1 2 52...

Страница 53: ...2 E 1 2 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 0 Main wheel right 0 Tot...

Страница 54: ...Nynja Operators Manual issue 2 E 1 2 54...

Страница 55: ...moment Total empty weight Centre of Gravity position Item weight arm 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 w...

Страница 56: ...Nynja Operators Manual issue 2 E 1 2 56...

Страница 57: ...s Manual issue 2 E 1 2 57 ANNEX C MODIFICATIONS FITTED TO THIS AIRCRAFT SINCE INITIAL PERMIT ISSUE Modification approval sheets are to follow this page Modification reference Description Sign and date...

Страница 58: ...Nynja Operators Manual issue 2 E 1 2 58...

Страница 59: ...Nynja Operators Manual issue 2 E 1 2 59 ANNEX D INSTRUCTIONS AND MANUALS FOR OTHER DEVICES FITTED TO THIS AIRCRAFT No Description Issue or date Approval Mod No or original equipment...

Страница 60: ...Nynja Operators Manual issue 2 E 1 2 60...

Отзывы: