THE WORLD MODELS 28% EXTRA 330L Instruction Manual page 10

13 Main Wing
Screw
PM3x35mm
1
Screw
PA3x35mm
1
Washer
d3 x D7mm
2
Step 2. Install the right wing to the fuselage by inserting the wing tube (now attached to the right
wing) through the fuselage, then install the left wing.
Top View
2.5mm
Step 3. Make sure the wings are resting against the fuselage tightly. Locate the pre-drilled 2.5mm hole at top of
left wing, and drill along with 2.5mm drill bit until it passes through the wing tube. Apply the PA3x35mm self-
tapping screw.
Note : It is recommended that the wing tube stays with the left wing. Removal of the wings could be achieved by
removing the right wing machine screw, the right wing then the left wing with wing tube. If removal of wing tube
from left wing is also required, it is recommended that instead of applying self-tapping screw in step 3, you pre-
tap with M3 thread cutter and apply M3 machine screw.
Step 1. Insert the aluminum wing tube with the pre-drilled hole end into the right wing. Align
the lines marked at the wing root and wing tube, then apply the PM3x35mm machine screw
through the pre-drilled hole on top of the wing. ( please confirm the alignment of the hole by
putting a 2.5mm diameter rod through the pre-drilled wing hole before applying the screw )
The hole on the wing tube is pre-threaded, do not over tighten the PM3 screw, the set up is for
future removal of the wing.
Wing Tube
Left
Washer
d3 x D7mm
PM3x35mm
332mm
220mm
P . 9
Wing Fairing
Right