ceengland(at)bellsouth.ne
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 Posted: Sat Jul 08, 2006 11:24 am Post subject: fuselage center, f-623 rib question |
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Greetings, those who have gone before,
I'm clecoing the mid section bottom skin to the seat & baggage ribs,
trying to interpret the drawings on dwg22 (view C-C).
My F623L & R ribs have a joggle on the outside vertical flange where it
meets the F705 bulkhead. The joggle seems intended to allow a rivet to
tie the side skin, f705 bulkhead & the outside flange of the F623
together. However, view C-C (side view of this point) seems to show the
F623 rib being cut off just short of the F705 bulkhead flange. If I cut
nothing, I'll have a joggle in the bottom skin (obviously wrong). If I
cut as shown in view C-C, I'm cutting off a joggle in the flange that
Van's went to the trouble of adding to the rib.
My 1st thought is to cut the inside flange & horizontal surface of the
F623 & leave the joggled tab for riveting to F705. Should I do something
different?
Bonus question1: The instructions say to cut a 1 1/2" hole in one of the
baggage ribs if you intend to add a step. Is there any harm in cutting
this hole if no step is planned? (grams add up to ounces add up to
pounds....)
Bonus question2: Any harm in enlarging the back tooling holes in the
seat ribs to 5/8", like the front ones? (possible future wiring path, if
needed)
Thanks,
Charlie
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