WATT AGE Super Impress II EP ARF Instructions For Final Assembly - page 27
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SECTION 15: BALANCING THE SUPER IMPRESS II EP ARF
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✦IMPORTANT✦
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✦ It is critical that your airplane be balanced correctly. Improper balance will cause your airplane to lose control
and crash!
Center of Gravity Location:
2-3/8" - 2-5/8" back from the leading edge of the wing, measured at the fuselage sides.
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✦WARNING✦
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✦ This is the recommended C/G range. For test-flying we suggest you start with the C/G in the middle of the range
(2-1/2"), then move it farther back as you become familiar with the flying characteristics of the airplane. It is not recommended
that the C/G be located any farther back than 2-5/8".
☞
Balance the Super Impress II EP ARF with the flight battery installed.
❑ Install the wing onto the fuselage. Apply two short pieces of masking tape onto the bottom of the wing, 2-1/2" back from the
leading edge, measured at the fuselage sides.
❑ With the airplane rightside up, place your fingers on the masking tape, and carefully lift the airplane. If the nose of the airplane
falls, the airplane is nose heavy. To correct this, move the flight battery back far enough to bring the airplane into balance. If the tail
of the airplane falls, the airplane is tail heavy. To correct this, move the flight battery forward far enough to bring the airplane into
balance. When balanced correctly, the airplane should sit level or slightly nose down when you lift it up with your fingers at the
C/G location. The tail should NOT drop.
☞
Once you have flown and become familiar with the flight characteristics of the airplane, the C/G can be moved fore or aft within
the C/G range to change the flight performance. Moving the C/G back will cause the airplane to be more responsive, but less stable.
Moving the C/G forward will cause the airplane to be more stable, but less responsive.
DO NOT FLY THE AIRPLANE BEYOND THE RECOMMENDED BALANCE RANGE OR AN
UNCONTROLLABLE CRASH COULD RESULT!
SECTION 16: CONTROL THROWS
❑ # 2 Phillips Head Screwdriver
❑ Ruler
❑ Masking Tape
YOU'LL NEED THE FOLLOWING TOOLS AND SUPPLIES:
We recommend initially setting up the Super Impress II EP ARF using the Test-Flying control throws. These control throws are
suggested for initial test-flying because they will allow the airplane to fly smoother and make it easier to control. Once you're familiar
with the flight characteristics of the airplane, you might want to increase the control throws to the Sport-Flying control throws. These
control throws will make the airplane more responsive and allow you to do basic aerobatics with ease.
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✦IMPORTANT✦
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✦ The control throws are measured from the widest point of the control surfaces.
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✦IMPORTANT✦
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✦ After you are finished adjusting the control throws, we suggest double-checking that the clevises are snapped
firmly closed.
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✦VERY IMPORTANT✦
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✦ We do not suggest increasing the control throws beyond the recommended Sport-Flying control
throws unless you are a proficient flyer. Higher control throws will cause the airplane to be extremely control sensitive and result in
a possible crash if you are not careful.
Ailerons:
3/8" Up
3/8" Down
Elevator:
3/8" Up
3/8" Down
Rudder:
1/2" Right
1/2" Left
TEST-FLYING
Ailerons:
3/4" Up
3/4" Down
Elevator:
3/4" Up
3/4" Down
Rudder:
3/4" Right
3/4" Left
SPORT-FLYING