J-Power KATANA Assembly And Operating Manual - page 8
Assembly and Operating Manual KATANA
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Fig. 19 Checking the models balance
-Place the flight battery in its compartment, without
connecting.
-Mark the Centre of Gravity (CG) on both sides of the
fuselage; the position is shown in the photo.
-Support the model at the marked points and allow it
to hang freely. When correctly balanced the airplane
will remain horizontal, with the nose slightly down.
-If necessary, adjust the position of the flight battery
to achieve the correct CG.
-Mark the battery location in the fuselage, so that
you can be sure of positioning it correctly after
recharging.
-Pack scrap pieces of foam around the battery in its
final position, otherwise there is a danger of it
shifting in flight and altering the model’s balance.
- Charge the flight battery and the model is ready
for flight.
Fig. 20 Access to the ducted fan unit and
electronic speed controller
-The ducted fan unit is accessible from underneath,
if you need to carry out maintenance work or
repairs.
-Ensure that the wire colors match correctly.
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