PatrickW
Joined: 27 Oct 2006
Posts: 380
Location: Fort Worth, Texas
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 Posted: Sat Mar 15, 2008 8:45 am Post subject: XL Fuselage Longeron Matching |
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Question: does the curvature of the upper fuselage longerons match the curvature of the lower fuselage longerons?
In other words, if you were to lay the upper left cabin longeron on top of the lower left cabin longeron, would they match...? Same of course with the upper & lower ones on the right side.
I'm trying to figure out how to make the new welded steel 6B6-4 piece (the combo engine bracket - canopy hinge - brs bracket) fit square against the firewall and at the same time fit square on the upper longeron.
The current set of drawings doesn't show the new 6B6-4 piece, but here's a picture of it: http://picasaweb.google.com/Patrick.Hoyt/Zenith601XLBRSBrackets/photo#5148684881001422818
I'm thinking that some trimming and possibly some re-bending of the upper longerons will be required, but was curious what other builders were doing in this area.
I am leery of introducing a compound curvature into the forward side skins that would result from different shapes of the upper cross section versus the lower cross section, so if indeed they do match a possible solution may be to disassemble my fuselage and use my lower longerons as templates for my upper longerons.
Thoughts?
Patrick
XL/Corvair
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