Great Planes Giant Extra 330L Kit - GPMA0250 - Manual (Page 31)

❏ ❏ 3. Using an 11/64" drill bit, drill 2 holes through each
doubler, forward box side and landing gear support. The
holes are positioned 1/2" up from the bottom of the doubler
and 3/4" from the leading edge and 1-1/4" from the TE.
❏ ❏ 4. Using the 8-32 x 3/4" socket head cap screws and
the 8-32 nylon lock nuts, bolt the landing gear support to the
forward center box side and landing gear support doubler.
Remove the clamp.
❏ 5. Repeat steps 1 through 4 for the left landing gear support.
❏ 6. Locate the aluminum main landing gear. Using the
fuselage bottom view on the plan as a reference, drill four
11/64" holes in the gear. The holes are placed 3/4" from the
bend and 1/2" from the leading and trailing edges of the
gear respectively.
❏ 7. Center the main gear on the fuselage with the leading
edge of the gear flush with the trailing edge of F3. Using the
hole in the gear as a guide, drill the right front 11/64" hole
through the birch landing gear plate and the aluminum
landing gear supports. Bolt the gear to the fuse with an
8-32 x 3/4" socket head cap screw and a nylon lock nut. Drill
and bolt the remaining 3 holes one at a time.
If you are not using the recommended Ohio SuperStar
Large Tail Gear, mount and secure your tail gear as
recommended by the manufacturer. To attach the
recommended tail gear (not included), complete steps 8
through 10.
❏ 8. Drill a 5/32" hole which is centered on the fuselage and
is 3-1/4" forward of the fuse’s trailing edge as shown in
the photo.
❏ 9. Glue the 3/4" x 3/4" x 1-1/2" birch ply tail gear torque
block to the top of the tail gear mount, centered on the hole
with the block running width-wise across the fuse. Redrill
your 5/32" hole back through the tail gear mount and the tail
gear torque block after the glue has cured.
❏ 10. Fit the tail gear in place. Mount the straps to the tail
gear mount using the screws included with the tail gear. Use
the plan as a reference.
WOW!!! The GEAR’S on already!! It won’t be long now
before this giant beauty is done!
❏ 1. From the two 5/16" x 18" dowels, cut one 9" long wing
forward anti-rotation dowel, one 13" long wing aft anti-
rotation dowel, and one 5" long stab anti-rotation dowel.
Round both ends of the dowels as shown on the plan.
❏ 2. Fit the 6" fuselage segment of wing tube socket
through the holes in the center box sides. DO NOT GLUE
the wing tube socket in position at this time.
Mounting the Wing & Tail
31