3
TIPS FROM THE PROS
●
During the covering process, color may sometimes smear slightly from the seams. If you see any smeared colors on the
covering material, it can be quickly removed by simply wiping it off with a paper towel and a small amount of Acetone.
●
Make sure to test-t the parts before applying glue. This will ensure that the parts t together properly before gluing them together.
●
When gluing anything that has a smooth surface, it's important to lightly roughen the gluing surfaces with 220 grit
sandpaper. This will allow the glue to stick better. Also, never glue directly to the covering material. Always remove the
covering material from the gluing surfaces prior to gluing the parts together.
●
When cutting away the covering material from the gluing surfaces, be careful to cut only through the covering material.
Try not to cut down into the balsa structure because that can compromise the integrity of the airframe.
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We do not suggest storing your airplane in an extremely hot environment (like the back of your car in direct sunlight) for
any length of time. The extreme heat could cause the covering material to wrinkle or sag and possibly damage the fragile
components of the radio control system.
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Epoxy can be cleaned up before it dries using rubbing alcohol, and C/A can be cleaned up before it dries using C/A Debonder.
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Make a U-Shaped bend in one end of a long piece of scrap pushrod wire and use it to help pull the servo extension leads
through the wing panels.
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The control horns are mounted to the control surfaces using wood screws. Even though the wood screws thread into
plywood plates, apply a small amount of 5 minute epoxy to each screw before you install it for extra security.
●
When you plug servo extensions onto the servo leads, apply masking tape or heat-shrink tubing over the plugs to prevent
any chance of them pulling apart during assembly, or worse, during ight.
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Apply threadlocking compound to any screws that thread into metal. This will ensure the screws can't vibrate loose during ight.
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Apply lightweight oil or petroleum jelly to the pivot point of the rudder hinges and the landing gear door hinges (if
applicable) to prevent epoxy from gluing the hinges solid.
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Before ying the airplane for the rst time, make sure to go through and double-check everything. Check that all the
hinges are glued solidly, all bolts and screws are tight, etc. Double-check the operation of the landing gear, too, if using the
optional retractable landing gear.
ADVANCED SCALE MODELS P-61 BLACK WIDOW FINAL ASSEMBLY
STEP 1: HINGING THE AILERONS AND FLAPS
❑ Hinge the ailerons to the wing panels, using the six C/A-style hinges
provided and a generous amount of thin C/A. Make sure that the tip of
each aileron is even with the wing tip and that the hinge gap is as tight
as possible to prevent utter.
Push two T-Pins through the center of each hinge to
help keep the hinges centered while you hinge the ailerons. Make
sure to remove the T-Pins before you push the ailerons into their
nal positions. This will ensure a tight hinge gap.
❑ Hinge the aps to the wing panels, using the four C/A-style hinges
provided. Use the same techniques that you used to hinge the ailerons.
Notice that the aps are hinged along the bottom of the wing.
The inboard edge of the aps should be approximately
1/16" (1.6mm) inside the root rib of the wing panels. This will prevent
the aps from hitting the center wing panel when lowered.
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