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Front and Main retract
The main gear units fit on the rails
installed in the wing.
This is a crucial part of the build and
some sanding of the rails may be
necessary to get the required fit. It is
also necessary to check that the retract
mechanism does not foul the operation
of the outer gear door.
Some adjustment here may be required
to get a good fit. Once happy with the
basic fit, connect a length of 4mm air
line supplied to each of the nipples on
the retract unit and slide the unit into
place in the wing making sure not to
obstruct or kink the air lines in the
process.
Slide the retract unit into the trunnion
and check the movement is smooth
and without obstruction.
Remove the leg leaving the retract units
in place, drill the 4 mounting points and
secure the retract unit with 4 x large
self tappers supplied.
When both wings are completed to this
stage the wings should be fitted to the
aircraft to position the legs
for accurate tracking. Check the
retracting motion again at this time to
make sure the assembly retracts
nicely into place and the fuselage gear
doors can close without obstruction.
You may have to do this a
number of times to achieve the result
you are happy with. Once you are
happy with this mark the position
of the legs relative to the retract
trunnion with a marker pen on both the
leg and the trunnion.
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