7
Nynja Build Manual 1.4d
Contents
Introduction............................................................................................................. 10
1.1 How to Build Your Aircraft.................................................................................................... 10
1.2 The BMAA Homebuilt Aircraft System....................................................................................... 12
1.3 General Assembly Notes ........................................................................................................... 14
1.4 Finish.......................................................................................................................................... 18
1.5 Weight........................................................................................................................................ 20
2. Forward Fuselage............................................................................................ 21
2.1 Tube Numbering .................................................................................................................. 21
2.2 Fuselage frame assembly overview........................................................................................... 23
2.3 Lower Cabin Triangle.................................................................................................................. 25
2.4 Upper Cabin Triangle................................................................................................................. 30
2.5 Rear Cabin Frame................................................................................................................ 33
2.6 Rear cabin frame bracing..................................................................................................... 34
2.7 Engine Supports................................................................................................................... 37
2.8 Floor..................................................................................................................................... 46
2.9 Rudder Pedals ..................................................................................................................... 48
2.10 Control Stick Assembly........................................................................................................ 49
2.11 Finishing the Forward Fuselage........................................................................................... 52
3Rear Fuselage.................................................................................................. 54
3.1 Tail End................................................................................................................................ 54
3.2 Bracing Frame............................................................................................................................. 56
3.3 Front End.............................................................................................................................. 57
3.4 Fuselage bracing cables ............................................................................................................. 58
3.5 Tailplane Front Mounting ..................................................................................................... 63
3.6 Fuel Tank Support and Flap Handle........................................................................................... 64
Not Tightening the Bolts and cables! ................................................................................................ 66
4Undercarriage.................................................................................................. 67
4.1 Wheels ................................................................................................................................. 67
4.2 Main Undercarriage.............................................................................................................. 69
4.3 Nose Gear................................................................................................................................... 73
4.4 Brakes.................................................................................................................................. 77
5. Tail Surfaces....................................................................................................... 80
5.1 Tensioning the Rear Fuselage............................................................................................. 80
5.2 Elevator Trim Tab................................................................................................................. 81
5.3 Tailplane...................................................................................................................................... 83
5.4 Rudder.................................................................................................................................. 87
5.5 Control Cables ..................................................................................................................... 90
6Fitting the Rear Fuselage Fairings............................................................... 100
6.1 Preparing the rear fuselage fairings................................................................................... 100
6.2 Fitting the rear fuselage fairings......................................................................................... 101
7. Engine Installation Rotax 912UL/912ULS.................................................... 105
8. Wings.............................................................................................................. 110
8.1 Wing Frame........................................................................................................................ 110
8.2 Aileron Horn Assembly....................................................................................................... 119
8.3 Attaching the Wings to the Fuselage ................................................................................. 121
8.4 Aileron Control Cables ....................................................................................................... 122
8.5 Flaps................................................................................................................................... 126
8.6 Covering the Wings............................................................................................................ 128
8.7 Inserting the Battens .......................................................................................................... 135
9. Windscreen Frame and Throttles................................................................. 138
9.1 Windscreen Frame............................................................................................................. 138
9.2 Throttles ............................................................................................................................. 143
