80
5. Tail Surfaces
5.1 Tensioning the Rear Fuselage
a) Ensure that the front of the vertical fin is not yet fixed to its mount.
b) Check that the rear fuselage is sitting approximately squarely, then tighten the
bolts around the rear fuselage, remembering to use threadlock.
If there is some “set” in the rear fuselage, get a helper to twist it straight
whilst you do the bolts up. This will help when the cables are used to
correct the “set” as detailed below.
c)
Ensure the fuselage sets at the right vertical alignment.
This is done by tensioning the turnbuckles on the C cables individually.
Sighting between TU14 forward cabin tube and fin whilst standing
ahead of aircraft will confirm vertical alignment. If turnbuckle tension
required is significantly asymmetric then shortening the length of the D
cable on the opposite side to the turnbuckle that requires the greatest
tension will help. To do this slacken the turnbuckles and undo one end
of the D cable to make the twists, replace and re-tension turnbuckles.
d)
Final tension of C cables should be around 5Kg for a 10mm displacement
when cable is pulled at right angles downwards and mid cable length point,
using a travel scale or similar
A and B cables should not be loose but don‟t need great tension.
e) E and F cables should have light to firm tension. Their tension has an influence
over curve in the vertical plane of the fuselage longeron tube
– TU2 and 4‟s.
Asymmetric tension may pull the fin out of vertical. If required adjust tension so
all is straight by winding or unwinding the cable, and reattaching. A helper is
useful to apply pressure to the frame to help reattaching.
f) Finally secure all cables where they cross with a small length of split thin wall
tubing (the pitot tubing can be used) over one cable, and a cable tie.
Figure 91 securing crossing cables
Содержание Nynja Build
Страница 1: ...1 Nynja Build manual Version 1 0...
Страница 2: ...2 Figure 1 tube numbering scheme...
Страница 3: ...3 Figure 2 Basic frame Skyranger...
Страница 4: ...4 Figure 3 uncovered Skyranger frame...
Страница 5: ...5 Figure 4 Uncovered Nynja frame Figure 5 Nynja fuselage with rear fairings removed...
Страница 6: ...6 Figure 6 Nynja fuselage with rear fairings removed rear view Figure 7 simply assemble thus...
Страница 22: ...22 Figure 13 forward fuselage from front quarter Figure 14 Cabin upper rear corner...
Страница 60: ...60 Figures 65 cable arrangement further overview...
Страница 86: ...86 Figure 100 Nynja elevator joiner with integral control horn...
Страница 113: ...113 Figure 135 front jury strut attachment Figure 136 rear jury strut attachment...
Страница 117: ...117 Figure 141 front and rear of tensioning tube File edge of this saddle washer 2 3mm to clear U bracket on fuselage...
Страница 118: ...118 Figure 142 tensioning tube fittings front in left photo note bolt through compression tube rear in right photo...
Страница 183: ...183 Figure 231 heavy duty power wiring schematic Rotax 912...
Страница 184: ...184 Figure 232 low current wiring schematic Rotax 912...
Страница 185: ...185 Figure 233 instrument wiring schematic Rotax 912...
Страница 200: ...200 Nynja Build manual 1 0 18 2 One Piece Door Figure 250 one piece door frame...
Страница 255: ...255 Nynja Build manual 1 0 27 Additional Information 27 1 Example BMAA Homebuilt Registration Form...
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Страница 257: ...257 Nynja Build manual 1 0 27 2 Wire locking...
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