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This is an RV-3B?
What happend the the triangular pieces running from bottom of spar,
between rudder pedals, up to engine mount bolts 5 and 6? I can't
beleive they were removed in the RV-3B. These two additional
engine mount bolts and stiffeners were added to the RV-3 after several
engine mount failures.
Hi Finn,
The plane is designated as an RV-3B,
because it has the -B wings. The actual project that I purchased was
started over 20 years ago (sn-751), and was prior to the -A
designation. As you may recall, I had to throw away the original
wings, because the builder made some life threatening mistakes. The
original Lycoming mount did not have the two additional bolts that you
are referring too, but of course the later planes do.
The mount that I have was not made from the
original Lycoming mount, but rather designed from the ground up by
Fred. It has a 5th mounting point, and should not have the same
problem that the original Lycoming mounts had.
Good eye BTW :-)
Rusty
I'm still concerned. It's not so much an engine mount issue as a
landling gear leg issue.Top of gear leg tubes each got added the
additional attach points to the firewall and from there stiffeners all
the way back to the main spar. I guess I should have paid more
attention to the firewall forward pitures. The RV-4 has them too. Gear
shimmy or hard landings could break loose the top of the gear leg tubes.