Another Rivet Question

" jls" wrote in message ...
"c hinds" wrote in message
om...
What are the "soft" rivets used for. In every instance on my project,
hard rivets were called for.
Just wondering.
Clark

I haven't looked at AC 43-13 lately but recall that A rivets have been used
in some structural applications. Whether legally or not, don't know. I
have seen them used on trailing edges of aluminum wings and control surfaces
where driving them is done with a squeezer rather than a gun in order to
keep the trailing edge arrow-straight. In 1/8's they are much easier to
squeeze than AD rivets, which you'll over-exert yourself squeezing if you
don't watch it or are a weenie like Della. You will notice that even on new
Cessnas, like 182's for instance, the horizontal trailing edges of the flaps
are wavy, not straight. Get behind one and sight down the wing's trailing
edge from inboard to outboard and you'll see what I'm talking about.



I think the RV-10 uses a double countersunk rivet on their control
surfaces trailing edges. If this is correct, anybody know if they're
using hard or soft rivets here?

Neal