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<< Lancair Builders' Mail List >>
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Ian,
I have a couple of pictures, which would help, but I don't have a scanner. I
can get them scanned, but it will be a few days.
Meanwhile, let me try to explain what I did. First, I put lightening holes in
3" x 1" x 1/8" angle aluminum. Then, I cut off about an inch of the 1" ends so
the 3" side would rest on the longeron on one side and the nose gear tunnel on
the other. I did this on both sides of the cockpit about (I'm guessing - the
a/c is in the hanger) 14" aft of the rear of the firewall. It is quite level
and makes a good, broad platform on which to mount things like the vacuum pump
air filter, encoder and braces for heavy gyros on the instrument panel.
Others had complained that their fuselage tended to flex where the bottom of the
plate holding the canopy air spring balls is attached to the inside of the
fuselage. Therefore, I used a piece of the 3" x 1" angle about (guessing again)
8" long which I mounted on top of the lateral angle aluminum, with the 3" side
vertical and running aft, paralleling and sticking above the inside edge of the
fuselage. The balls for the canopy air springs are mounted near the top, aft
corner of the vertical 3" piece of angle al.. To brace the aft end of the angle
al. holding the balls, I attached a thick piece of al., about 1.5" x 2.5" x
1/8" under the aft end of the 1" side of the angle al. and rested the other end
on the longeron just behind where the fiberglass holding the forward deck
mounting hinge angles down to the level of the longeron. It is much more sturdy
than the method described in the manual. There is no flex at all.
I realize a picture would be much better, but try reading this very slowly while
looking down on the area behind the firewall. If it isn't clear, have a couple
of beers and try again. Or tell me what doesn't make sense.
Bob Chesley
Ojai, CA - Camarillo Airport
L-320 - N4YH
LML website: http://www.olsusa.com/Users/Mkaye/maillist.html
Builders' Bookstore: http://www.buildersbooks.com/lancair
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