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Tips From The Pros - advanced scale models A-26 invader Assembly Instructions Manual

A semi-scale arf r/c model of the douglas a-26 invader

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During the covering process, colour may sometimes smear slightly from the seams. If you see any smeared colours on the covering
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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-fit the parts before applying glue. This will ensure that the parts fit together properly before gluing them together.
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When gluing anything that has a smooth surface, it's important to lightly roughen the gluing surfaces with 220 grit sandpaper. This
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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
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cut down into the balsa structure because that can compromise the integrity of the airframe.
We do not suggest storing your aircraft in an extremely hot environment (like the back of your car in direct sunlight) for any length
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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.
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
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the wing panels.
The control horns are mounted to the control surfaces using wood screws. Even though the wood screws thread into plywood plates,
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apply a small amount of 5 minute epoxy to each wood 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
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chance of them pulling apart during assembly, or worse, during flight.
Apply threadlocking compound to any screws that thread into metal. This will ensure the screws don't vibrate loose during flight.
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Apply lightweight oil or petroleum jelly to the pivot point of the control surface hinges and the landing gear door hinges (if applicable)
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to prevent epoxy from gluing the hinges solid.
Before flying the aircraft for the first time, make sure to go through and double-check everything. Check that all the hinges are
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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.
STEp 1: HinGinG THE AiLERonS And FLApS

TipS FRom THE pRoS

ASSEmBLinG THE TiGERcAT ARF
q Apply a thin coat of machine oil or petroleum jelly to the pivot point of
each of the three aileron hinges from one wing panel. Be careful not to get
any on the gluing surfaces of the hinges.
IMPORTANT The machine oil or petroleum jelly will prevent epoxy from
gluing the hinges solid when they're installed.
q Apply a thin layer of 5 minute epoxy to one half of each hinge, then glue
the hinges into the ailerons.
IMPORTANT Install the hinges so that the centre of each hinge (the
pivot point) is even with the leading edge of the aileron.
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