16
Nynja Build Manual 1.4d
Washers
Metal washers should be used to prevent scratching of the surface as a nut is
tightened.
Nylon washers, or similar plastic washers, should be used to:
a) fill spaces between parts, such as between tubes and U-brackets
b) avoid friction between two moving metal parts, such as the stick and its
supporting bracket
c) avoid contact between parts of different materials, especially stainless-steel
and aluminium
The final point above is primarily to prevent the hard steel wearing through the soft
aluminium due to vibration, rather than for electrolytic reasons, as the bolt passing
through both materials will still complete the electrical connection.
Saddle washers
Normally they are shown on the drawings and photos.
Generally they are used between two crossed tubes or between a tube and a flat
bracket.
Take care not to overtighten bolts which pass through plastic saddle washers as you
may cause them to split.
Nuts and washers
Standard nuts and washers in the main kit are metric zinc plated steel. An acceptable
alternative is to use A2 stainless nuts and washers. These can be purchased from a
fastener supplier for relatively low cost and provide protection form corrosion. Note
that bolts supplied are a mix of 8.8, 10.9 and 12.9 and Eastern European Mil spec
and some smaller bolts are stainless steel. These may NOT be changed for other
specification or to stainless steel as strength, malleability and dissimilar metal
corrosion can be problems.
Bolts
Generally all bolts should bear on their unthreaded lengths, not on the threaded
portions.
It is also i
mportant that nuts are not screwed on so far as to become ‘threadbound’
by reaching the limit of the threaded portion. You can use an extra washer or two to
adjust the effective length and prevent this where required.
Turn nuts, not bolts whenever possible, when tightening, as this may damage the
plating and encourage corrosion. Washers are only needed under nuts to allow them
to be turned, whereas bolt heads should not be turned.
Do not over-tighten bolts, avoid deformation of tubes or brackets.
Содержание Nynja
Страница 1: ...1 Nynja Build Manual 1 4d Nynja Build manual Version 1 4d...
Страница 2: ...2 Nynja Build Manual 1 4d Figure 1 tube numbering scheme...
Страница 3: ...3 Nynja Build Manual 1 4d Figure 2 Basic frame Skyranger...
Страница 4: ...4 Nynja Build Manual 1 4d Figure 3 uncovered Skyranger frame...
Страница 22: ...22 Nynja Build Manual 1 4d Figure 13 forward fuselage from front quarter Figure 14 Cabin upper rear corner...
Страница 60: ...60 Nynja Build Manual 1 4d Figures 65 cable arrangement further overview...
Страница 113: ...113 Nynja Build Manual 1 4d Figure 135 front jury strut attachment Figure 136 rear jury strut attachment...
Страница 187: ...187 Nynja Build Manual 1 4d Figure 254 heavy duty power wiring schematic Rotax 912...
Страница 188: ...188 Nynja Build Manual 1 4d Figure 255 low current wiring schematic Rotax 912...
Страница 189: ...189 Nynja Build Manual 1 4d Figure 256 instrument wiring schematic Rotax 912...
Страница 207: ...207 Nynja Build manual 1 4d 18 2 One Piece Door Figure 282 one piece door frame...
Страница 268: ...268 Nynja Build manual 1 4d 27 Additional Information 27 1 Example BMAA Homebuilt Registration Form...
Страница 269: ...269 Nynja Build manual 1 4d...
Страница 270: ...270 Nynja Build manual 1 4d 27 2 Wire locking...
Страница 271: ...271 Nynja Build manual 1 4d...
Страница 272: ...272 Nynja Build manual 1 4d...
Страница 273: ...273 Nynja Build manual 1 4d...