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Step 3: Retract cut outs
Before the retract mounts can be installed in the fuselage the necessary retract cut outs
have to be made in the fuselage.
We recommend to use a Dremel cutting disk and drum sander to make the necessary cuts.
NOTE:
As this process creates very fine epoxy/glass dust, the cutting has to be done in a well
ventilated area. The use of safety gear including gloves, safety glasses and surgical mask
is highly recommended.
Main Retract Units
The above cut out hast to be made for the main retract unit. Mirror the template for the
opposite side.
Before the retract slot can be cut, the
cutting area needs to be marked. Masking
tape does this job very well.
First measure 5mm forward (towards the
planes nose) from the main wing spar.
The retract slot will be cut between the
outer wing mounting wall and the air duct
towards the center of the fuselage. Leave
around 5mm between wing mounting wall
and retract cut out. The inner cut can be
made at the point where the air duct meets
the main fuselage body. Measure 3cm
(30mm) from the position marked in the
previous step towards the nose of the plane.
