Advertisement
CARF-Models Ltd.
info@carf-models.com
Alternatively: Plug In Wings (#791000)
Not much is to be said about the plug in
wings... fit the wing tubes and slide the
wings on to the center wing. Install the 2 half
ribs in the very tip of the airfoil and glue the
front wing dowel into one side. This wing
dowel is only necessary for precise
alignment of the leading edge, it will not
have to hold a lot of flying load, as the
torsion load is carried by the two wing tubes
mainly.
As a reinforcement of the rear wing tube,
please glue in the two hard balsa supports
with epoxy resin and microballon after
cutting out the gear doors, then add another
layer of fiberglass from the front to reinforce
the rear wing tube mount in the center wing.
Check the glue joints of the ribs in the outer
wing panels and if you find any voids or
cracks, which we have overlooked, please
fill with epoxy and some microballon.
Now glue in the two root rib reinforcements
into both outer wing panels and center wing,
where the wing fixing bolt will be located.
Drill through the root ribs in this area, insert
an M6 T-nut from the inside into the outer
wing panel and trial fit the M6 wing bolt
from the inside of the wheel wells. We
recommend to screw one of the white plastic
knurled nuts on the wing bolt all the way to
the head and glue on with thin CA. This will
create a wing bolt which can be tightened by
hand, without having to use an allen hex key
when assembling the plane at the field. Now
glue in scrap balsa pieces to create a surface
where the outer wing and the center wing
butt together. This will prevent both root ribs
to be pulled together and possibly break
away from the wing skin when accidentally
overtightening the bolt. Now, losing this bolt
can have dramatic consequences, even
though the wing is mounted with a twin tube
system. It still can slide off during flight.
Make sure that the bolt is tightened properly
and check this before every flight.
Page 19
Instruction Manual F4U-1D Corsair
Advertisement
