Great Planes F-20 Tigershark Electric Ducted Fan Rx-R - GPMA6010 - Manual (Page 5)

5
WING INSTALLATION
X = X'
X X'
Mark the center of the carbon wing tube.
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1. Locate the 3 x 460mm carbon wing tube. Make a mark
in the center of the tube by measuring from side to side and
dividing that fi gure by two. Where distance X equals distance
X', make a small mark on the tube using a felt-tip pen or a
piece of trim tape.
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2. Turn the fuselage over and mark the center of the wing tube
slot. Where distance Y equals distance Y', mark the fuselage.
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3. Test fi t the carbon wing tube into the corresponding
slot in the fuselage and test fi t each of the wings. Make sure
that your centering marks are correct and correspond with
each other before gluing the wing tube and wings. Make
adjustments as necessary.
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4. Clean all gluing surfaces with denatured alcohol. Using
thick regular CA, apply a continuous bead of glue into the
spar slot in the bottom of the fuselage. Center the carbon
wing spar using the marks that you made and press it up
into the slot completely. Set the fuselage on a fl at table and
make sure that the wing spar is parallel with the table top.
This will ensure that you have inserted the spar correctly. Use
a cotton swab or a paper towel to clean up the excess CA
from the slot. Set the fuselage aside and allow the CA to cure
or spray some CA accelerator on to speed up the cure. Note:
For the remaining steps in this section, please do not use CA
accelerator to cure the CA adhesive until after step 7.
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5. Apply thick CA to the wing tabs and the wing root of
each wing where the wing will join with the fuselage. Note:
Wipe the glue across all mating surfaces. Remove excess
glue so that the CA does not run when the wings are joined.
5