F704 Bulkhead extra bolt holes

[Maury]

I tried a search,but not real sure how to ask. Anyways, I'm building a 7 and there are holes in the F704 bulkhead that are there to bolt the main gear fixtures in the "A" model. Should I leave them open or put bolts in there. I have just mated the center section to the aft section, so I would like to do this before I rivet the bottom skin on permently.

Along those lines; Did you guys MCSK the F705 or dimple for the bottom skin? I was planning on MCSK. It also looks like the forward bottom skin is thick enought to MCSK over the F704 bulkheads.

As always, Thanking You in Advance.
Rick Maury
-7 emp and wings done, fuse getting there.

 

[Vlad]

Rick,
If you are talking about those extra bolts which go to platenuts, do not put them for now. If you are talking about main 8 thick bolts, I believe there is a provision in the construction manual to fabricate proper spacers and put hardware store undersize botls and nuts there to simulate wing spar.

I have the same fuse on my 9 and I dimpled bottom both thick skins and anodized center section. Dimpled to dimpled riveted have more strenght than countersunk to nothing riveted. Just my personal opinion.

 

[Maury]

If you look at the plans for an A model, there are bolt holes thru the spar that hold the weldment for the main gear. This is on the forward side of the F704.

Thanks,
Rick