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Nynja Build manual 1.0
26 Preparing for Flight
Rig the aeroplane ready to fly.
26.1 Airframe
Dihedral and washout
The following specifications are intended as a rough indication of the correctness of
the alignment of the wings. Unless there is a noticeable deviation from these, such as
the presence of anhedral or wash-in, any concerns will be addressed at the test flying
stage where the use of different-length lift-strut end-fittings can be used to adjust the
wing alignment.
a) The dihedral should be around 1.2
per wing: a straight line between centre of
the leading edge tubes at the wing tips should be around 10cm above the
same position at the centre of the cabin.
b) The washout should be around 1
at the wing tips compared to the wing roots:
this corresponds to a twist upwards of around 2cm of the height of the trailing
edge over the chord of the wing, from root to tip.
If this is grossly wrong it is likely that the internal bracing cables are not
taught. If either cable is loose the turnbuckle should be tightened. If one
of the cables remains slack whilst the other is tight it may be that the
covering is not properly seated on the leading edge, requiring removal
of the wing covering and refitting as per the instructions.
26.2 Aerofoil Jury struts
a) Check that the eyebolt attachment in the wings are aligned fore and aft.
Rotate if necessary. (note
– eyebolts may be either male or female type)
b) Loosely fit the lower U brackets to the wing lift struts. The horizontal bracing
strut should be cut to length, drilled and fitted to the lift struts, with its ends
flush with the ends of the brackets.
The front bracket is the one that leans forwards. The rear bracket is
more upright. The rear bracket is not symmetrical however and has the
edge most upright to the front.
c) Fit the horizontal brace and U brackets as shown, with a thin plastic washer
between the U bracket and the lift strut.
d) Fit the Jury struts and bolt them into position.
The lower fitting uses a 4-40mm bolt. Thin plastic washers should be
put both sides between of the jury strut and U bracket. If it is a male
eyebolt the upper fitting has a rubber grommet fitted to the eyebolt to
prevent lateral movement, and the Jury strut fits over this. Grommet not
required if female eyebolt. It is then fixed with a 4-35mm bolt and
Summary of Contents for Nynja Build
Page 1: ...1 Nynja Build manual Version 1 0...
Page 2: ...2 Figure 1 tube numbering scheme...
Page 3: ...3 Figure 2 Basic frame Skyranger...
Page 4: ...4 Figure 3 uncovered Skyranger frame...
Page 5: ...5 Figure 4 Uncovered Nynja frame Figure 5 Nynja fuselage with rear fairings removed...
Page 6: ...6 Figure 6 Nynja fuselage with rear fairings removed rear view Figure 7 simply assemble thus...
Page 22: ...22 Figure 13 forward fuselage from front quarter Figure 14 Cabin upper rear corner...
Page 60: ...60 Figures 65 cable arrangement further overview...
Page 86: ...86 Figure 100 Nynja elevator joiner with integral control horn...
Page 113: ...113 Figure 135 front jury strut attachment Figure 136 rear jury strut attachment...
Page 183: ...183 Figure 231 heavy duty power wiring schematic Rotax 912...
Page 184: ...184 Figure 232 low current wiring schematic Rotax 912...
Page 185: ...185 Figure 233 instrument wiring schematic Rotax 912...
Page 200: ...200 Nynja Build manual 1 0 18 2 One Piece Door Figure 250 one piece door frame...
Page 256: ...256 Nynja Build manual 1 0...
Page 257: ...257 Nynja Build manual 1 0 27 2 Wire locking...
Page 258: ...258 Nynja Build manual 1 0...
Page 259: ...259 Nynja Build manual 1 0...
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Page 265: ...265 Nynja Build manual 1 0...
