High Quality Plan Sets and Laser Cut Partial Kits for Radio Control
Aircraft
Page 12
Carl Goldberg's 1938 Comet Clipper
The
lite-ply pivot plate.
The
completed outer elevator hinge with a balsa retainer at the end of the
pin.
The
tail
assembly was made removable on the prototype, but it can just be glued
on the mounting plate on the fuselage after covering. The first
step was to put he fin in place on the stabilizer and some 1/16
balsa was glued between the middle and rear spars, laminated and formed
to fit against upper the stabilizer sheeting. A lite-ply part was
glued in placed next to the middle fin spar and the fin was removed from
the stabilizer. A hole was drilled and a 4-40 nut plate was
installed. A 4-40 machine screw was inserted from the top and used
to make an impression on the stabilizer top sheeting to es
as a guide for drilling through the stabilizer. The balsa block
sitting on top of the stabilizer in this photo was fitted in between the
stabilizer sheeting, centered on the hole impression. Note the
grain is vertical to resist the compression from the machine screw.
A
balsa locating dowel was installed in the aft portion of the stabilzer
sheeting, extending into the balsa tail blocks at the end of the
fuselage. A hole has been drilled through the stabilizer sheeting
and the machine screw is installed, extending down through a
lite-ply plate. See the next photo.
Leading
edge clamping. Titebond III was used for this join.
A view of the pins and blocks used for
the rudder hinging. Making the tail removable required some
modification of the lower fin ribs that rest on the stabilizer in the
area below and aft of the rudder..
