At 09:46 PM 1/24/2017, you wrote:
I want to install the lower engine cowling with a hinge to the
firewall. I want
to do this with small AN bolts thru the firewall. My problem
is...you need very
wide hinges not to damage the frame frome the Side wall from the fuselage by
instelling the bolts.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Stef,
Measure the thickness of the cowl, the hinge, and then to the center
of the opposing hinge. You may find that the attach bolts miss or
affects only the very edges of the sidewall member. With only three
or four bolts going through the firewall any degrading of structure
should be minimal. I have only three bolts each side holding on my
bottom cowl and the top bolt doubles with the top cowl.
https://dl.dropboxusercontent.com/u/32133949/IMG_8083.JPG
Don't forget, I'm not an engineer and my advise is free...........
Larry Flesner
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