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Rear Spar Bulkhead F-705A: is it legal to drill through

simatos

Well Known Member
I need to route some cables through the F-705 A bulkhead. Does anyone know if it is accepatble to drill thru it? One half inch hole need for cables front to back.
 
I would posit that if you drilled through ONLY the F705A, and not the F705B center section bar, it shouldn't be a problem. F705A already has several holes in it, one quite large by comparison.

Maintain edge distance, of course.
 
What RV7A Flyer wrote. The 705B bar is the wing rear spar carry-through. You do not want to drill through that at all. I added two holes for my AOA/ Pitot tube lines to run under the floor. The holes are centered on the same line as the two holes shown in Detail A of drawing 20.
 
the F-705A I believe is the bulkhead channel. Talked to Vans this aft and they are saying its OK to drill thru for cables wiring etc, thanks you guys for your helping me out with this, don't like road blocks, gotta keep moving on the project Cheers G
 
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