The backing plates for the engine mount attach bolts (which are held
under considerable compression) are of 0.10" SS. The face and edges
are thoroughly sanded and these are bonded on the face and sides to
the engine mount attach point reinforcements using a resin and mill
fiber mix. For six attach points there are a total of 96 individual
lay-ups just for the reinforcements, plus six more two layer lay-ups
used for forms.
Oops...Make that 12 more two layer lay-ups, not six. There are two
for each side of each of the six reinforcements.
And some wonder why a G-III takes longer than some scratch built
planes. :-))
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com