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Nynja Build Manual 1.4d
2.11 Finishing the Forward Fuselage
2.11.1
Tightening bolts
At this stage it is permissible to tighten most of the bolts, as the cabin frame now
forms a well braced structure. The exceptions are the bolts securing the lower ends
of the rear verticals to the main undercarriage cross-beam, as these will be undone
when fitting the undercarriage.
Check the basic alignment of the structure as you tighten the bolts, trying not to work
in such a fashion as to introduce any unnecessary distortions into the structure (e.g.
don’t do all the bolts up along one side and then along the other).
Some slight misalignment is inevitable in a pre-drilled structure of this type, and
unless this is severe it is probably best to live with it rather than to open out too many
bolt holes. A slightly asymmetrical but well defined shape is preferable to a perfectly
aligned shape with sloppy bolts.
Remember to apply threadlock, and do not over tighten the bolts. The tubes should
not be visibly distorted. Remember the bolts are not relying on their tightness to stay
done-up, they only need to be tight enough to avoid the parts rattling against each
other. The Nyloc and the Loctite are responsible for keeping the bolts done-up.
2.11.2
Central brace
a) Fit the aluminium angles
2
and
3
linking the central cabin tubes
SKR19
to the
seat front support tube
SKR15
.
These are not pre-drilled, as the exact hole positions are affected by
the general alignment of the rest of the fuselage.
b) Bolt the angles to the seat front support tube
SKR15
first, then drill them to
match the holes in the central cabin tubes
SKR19
.
To aid clearance for the rudder and elevator cables, it is recommended
that (if supplied) both the lower saddle washers on the seat front
support tube
SKR15
are omitted. This leaves only the side ones
against the central cabin tubes
SKR19
.
An additional thin plastic washer may be fitted between the central
brace and the starboard central cabin tube to increase clearance for the
rudder cable.
The bolts should pass from the middle towards the outside, to clear the
elevator cables.
Summary of Contents for Nynja
Page 1: ...1 Nynja Build Manual 1 4d Nynja Build manual Version 1 4d...
Page 2: ...2 Nynja Build Manual 1 4d Figure 1 tube numbering scheme...
Page 3: ...3 Nynja Build Manual 1 4d Figure 2 Basic frame Skyranger...
Page 4: ...4 Nynja Build Manual 1 4d Figure 3 uncovered Skyranger frame...
Page 60: ...60 Nynja Build Manual 1 4d Figures 65 cable arrangement further overview...
Page 187: ...187 Nynja Build Manual 1 4d Figure 254 heavy duty power wiring schematic Rotax 912...
Page 188: ...188 Nynja Build Manual 1 4d Figure 255 low current wiring schematic Rotax 912...
Page 189: ...189 Nynja Build Manual 1 4d Figure 256 instrument wiring schematic Rotax 912...
Page 207: ...207 Nynja Build manual 1 4d 18 2 One Piece Door Figure 282 one piece door frame...
Page 269: ...269 Nynja Build manual 1 4d...
Page 270: ...270 Nynja Build manual 1 4d 27 2 Wire locking...
Page 271: ...271 Nynja Build manual 1 4d...
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