Battery installation and center of gravity – E-flite Aeronca Champ 15e ARF User Manual
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E-flite Aeronca Champ 15e ARF Assembly Manual
Battery Installation and
Center of Gravity
Required Parts
Airframe assembly Hook and loop tape
Motor battery (charged)
Battery/radio cover
Required Tools and Adhesives
Balancing stand
Thin CA
Felt-tipped pen
1. Apply the hook and loop tape inside the battery
compartment as shown. Wick thin CA along the
edges of the tape to secure it to the battery tray.
2. Apply the mating surface of the hook and
loop tape to the battery. Install the battery into
the compartment.
3. Replace the battery hatch on the fuselage.
An important part of preparing the aircraft for flight is
properly balancing the model.
CAUTION: Do not inadvertently skip this step or
property damage and injury could occur.
4. The recommended Center of Gravity (CG)
location for your model is 1
7
/
8
to 2
3
/
8
inches (48 to
60mm) back from the leading edge of the top wing
as shown with the battery pack installed. Mark the
location of the CG on the bottom of the wing with a
felt-tipped pen.
5. When balancing your model, support the plane
upright at the marks made on the bottom of the
wing with your fingers or a commercially available
balancing stand. This is the correct balance point
for your model. Make sure your model is assembled
and ready for flight before balancing.
Balancing Stand
Adjust the motor battery as necessary so the model is
level or slightly nose down. This is the correct balance
point for your model. You should find the CG to be
very close with the battery installed as shown in this
manual. Mark the location of the battery on the battery
tray using a felt-tipped pen so it can be returned to this
position if it is removed from your model.
After the first flights, the CG position can be adjusted
for your personal preference.