18
EN
2.
The recommended center of gravity (CG) location for your model
is 2
3
/
8
–3
5
/
16
inches (60–85 mm) back from the leading edge of
the wing at the root. Mark the CG location on the wings with tape
or a marker. Balance your model upright with your fingers or a
balancing stand supporting the model at the marks made on the
bottom of the wing.
3.
Support the aircraft upright at the marks made on the wing with
your fingers or a commercially available balancing stand.
If you are building the unpowered, tow launch version, proceed to
step 5
.
4.
If you are building the electric powered version, move the receiver
batteries forward or backward in the cockpit until the aircraft sits
level or slightly nose down on the balancing stand. When the proper
center of gravity is achieved, mount the receiver batteries to the
fuselage using hook and loop tape.
Proceed to the
Control Throws
section.
TIP:
If the proper balance point cannot be achieved with the receiver
batteries fully forward, add self-adhesive weight until the aircraft
balances.
BALANCING THE AIRCRAFT
CAUTION:
DO NOT SKIP THIS STEP. Never attempt to fly
without properly balancing the aircraft. An un-balanced aircraft
will be extremely unstable and may cause a crash. Crash damage is
not covered under warranty.
1.
Attach the wing panels, canopy and tail surfaces to the fuselage.
Make sure to connect the leads from the aileron, flaps and spoilers
to the appropriate leads from the receiver. Make sure the leads are
not exposed outside the fuselage before tightening the wing bolts.
Your model should be powered OFF, in an otherwise flight-ready
state prior to balancing.
Add ballast to the nose of the aircraft until the fuselage sits level
or slightly nose-down on the balancing stand.
TIP:
Tape a plastic bag to the outside of the nose of the fuselage
and add weight, such as lead shot or Deluxe Materials Liquid
Gravity (DLMBD38) to the bag until the aircraft balances.
5.
Remove the wings, canopy and flight batteries from the fuselage,
and carefully stand the fuselage up on its nose.
6.
Mix the ballast from
step 5
with epoxy and micro balloons and add to
the inside of the nose of the fuselage. Allow the mixture to fully cure.
TIP:
An alternative to adding the ballast directly to the fuselage
is to use the spinner from the Hangar 9 RV-4 (HAN488509) as a
mold to hold the epoxy/ballast mixture until it cures. This spinner
is an almost perfect match to the shape of the ASH nose. Pour the
ballast mixture into the spinner. After fully curing, the mixture can
be removed from the spinner and securely mounted in the nose of
the fuselage with epoxy.
Return the flight batteries to their position in the cockpit and
secure their location.
2
3
/
8
–3
5
/
16
inches
(60–85 mm)
