Wing Spar under construction.
I switched to using T-88 glue
for the spars. Supposedly
T-88 is the best glue on the
market. I had been using West
System up to this point for the
fuselage.
I switched to using T-88 glue
for the spars. Supposedly
T-88 is the best glue on the
market. I had been using West
System up to this point for the
fuselage.
Plywood stapled to the center
main spar.
main spar.
I made my wing attach fittings
(WAFS) using 4130 sheet steel
from Airparts in Kansas City,
Kansas. I had access to tools from
a company I was doing engineering
consulting for at the time I built
these. Otherwise I would not
recommend doing these yourself;
just the cost in getting the right tools
will be expensive. They are painted
with zinc chromate primer for
corrosion resistance. I also used an
AutoCad template for accuracy.
(WAFS) using 4130 sheet steel
from Airparts in Kansas City,
Kansas. I had access to tools from
a company I was doing engineering
consulting for at the time I built
these. Otherwise I would not
recommend doing these yourself;
just the cost in getting the right tools
will be expensive. They are painted
with zinc chromate primer for
corrosion resistance. I also used an
AutoCad template for accuracy.
Dihedral being set on the rear wing
spars. The accuracy turned out good.
When I later set the outer spars to the
mains during wing construction, the
angles of incidence and washout were
correct.
spars. The accuracy turned out good.
When I later set the outer spars to the
mains during wing construction, the
angles of incidence and washout were
correct.
Another picture of the
dihedral being set. The C
shaped block is the spar
alignment-drillling tool from
the Rand Robinson plans, only
I used wood with a 4130 steel
tube through it.
dihedral being set. The C
shaped block is the spar
alignment-drillling tool from
the Rand Robinson plans, only
I used wood with a 4130 steel
tube through it.