Build
file:///C|/Users/Frank/Documents/Debut/debut2.html[6/14/2011 4:21:00 PM]
3) Mark the wing leading edge fold line, and spar glue line. Using a straight edge and small blunt
tipped object, score the inner radius of the leading edge fold line, and bend over the edge of a
table.
NOTE: Flame all plastic parts with a propane torch before gluing! Medium CA is used for all wing
construction. USE SMALL DROPS EVERY 1/8" INCH OR SO. A BEAD OF GLUE MAY NOT
WORK! USING TOO MUCH GLUE IS THE
BIGGEST MISTAKE HERE!
4) Fabricate a 48" spar by splicing a 12" piece of yardstick to a 36" yardstick, using a 1" piece of
yardstick. Glue the spar to the bottom wing. Place the splice on the left side, to compensate for
engine muffler weight.
5) Separate the top wing into two halves, by cutting TO THE LEADING EDGE FOLD LINE ONLY.
This is to facilitate folding and gluing the wing, one side at a time...which we have found to be
much easier! Test bend the
wing top panels over the spar. Here is where things can get tricky, and it's nice to have 5 hands
or a helper! The bottom wing panel should remain flat, and the top panel trailing edges must be
marked and trimmed flush with the bottom panel trailing edge. Once accomplished, unfold the
wing, and glue the ailerons and filler piece to the bottom wing panel.
6) Fold and glue the top panels to the spar and trailing edge. A wood 2 x 4 works great for
holding the trailing edge down! Kraut has found that holding the leading edge down with a piece
of angle iron while glueing also works great!
NOTE: By nature, the leading edge of your finished wing may be slightly raised, and your lower
wing may be slightly undercambered towards the rear, giving you a natural eppler type airfoil.
This is perfectly acceptable, and is what gives this airplane such great performance!
7) Cut a 4" wide 2 MIL wing center wrap and glue to the top of the wing. Insert a 4" piece of coat
hanger into the end flutes of the center wrap, for rubber-band crush protection.
Engine and Fuel Tank:
1) The fuel tank is wrapped in foam for a snug fit, and the engine and engine mount are mounted
conventionally. Make sure the throttle pushrod housing doesn't chafe directly on the fuel tank
(we've learned this one the hard way!). We have also learned that mounting the engine at 45°
(muffler down) not only helps keep goop off your plane, but helps fuel draw during high G
maneuvers! Note: A 4 ounce fuel tank is enough fuel to get you through a 5 minute combat
round, but there is plenty of room inside the Debut fuselage for a 6 ounce tank. The prototype
equipped with a TT pro .25 engine and a 6 ounce tank will get 15 minute flights at full throttle!
That's a lot of good combat training time...and that's what the Debut is all about!
Radio Installation:
NOTE: Your engine and gas tank should already be mounted at this point. USE YOUR RADIO
EQUIPMENT PLACEMENT TO ACHIEVE PROPER CG. Your Debut MUST balance level to
slightly nose heavy at the wing spar. A tail heavy condition is not acceptable, and is VERY
unsafe!
