Great Planes Giant U-Can-Do 3D - GPMA1271 - Manual (Page 11)

you do plan on removing it, make sure to check the tightness
of the screws often.
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3. Use a #11 blade to remove the covering from the fin slot.
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4. Fit the fin in place and mark the covering on the fin
where it contacts the fuse.
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5. Refer to the Expert Tip that follows, then trim the covering
1/8" [3mm] below the lines you made on the fin. Be very careful
not to cut into the fin itself. Wipe away the marks on the fin you
made in the previous step. The epoxy used in the next step will
make removing those lines difficult. DO NOT remove the
covering from the TE of the fin.
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6. Check that the fin is perpendicular to the stab. If it’s not,
then adjust the fin slot until the fin is perpendicular to the stab.
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7. If you want the stab to be removable, remove the stab
so that the epoxy from the fin does not mistakenly glue the
stab. Apply 6-minute epoxy to all joining surfaces of the fin.
Fit the fin in place, aligning the TE of the fin with the TE of
the fuse.
❏
8. Attach the rudder to the fin with the same hinging
technique used for the ailerons.
❏
1. Temporarily assemble the tail gear, making a point to
mark the tail gear wire with the set screws.
Mount the Landing Gear
To avoid cutting into the balsa, use a soldering iron instead
of a hobby knife to cut the covering. The tip of the soldering
iron doesn’t have to be sharp, but a fine tip does work best.
Allow the iron to heat fully. Use a straightedge to guide the
soldering iron at a rate that will just melt the covering and
not burn into the wood. The hotter the soldering iron, the
faster it must move to melt a fine cut.
HOW TO CUT COVERING FROM BALSA
11