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ManualsBrandsE-flite ManualsAirplanesViper 70mm EDF Jet BNF Basic with AS3X and SAFE Select
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EN
Viper 70mm EDF
8
Battery Installation and ESC Arming
Center of Gravity (CG)
Battery Selection
We recommend a 22.2V 3200–4000mAh 30C 6S LiPo battery with EC5
™
/ IC5 con-
nector for standard operation. If using a different battery, the battery should be of
similar capacity, dimensions and weight to fit in the fuselage. Always be sure the
model balances at the recommended CG with the battery chosen.
1. Lower the throttle to the lowest setting.
2. Power on the transmitter and wait 5 seconds.
3. Apply the loop side (soft side) of the hook and loop tape to the bottom of your
battery.
4. Slide the canopy latch back and lift the back of the canopy to remove.
5. Install the fully charged battery in the battery compartment as shown.
See the Adjusting the Center of Gravity instructions for more information.
6. Secure the flight battery with the hook and loop strap.
7. Connect the ESC to the battery power lead EC5 connector, noting the correct
polarity. The ESC will emit two sets of audible tones in succession indicating the
programming status.
• The first set of tones indicates the number of cells in the connected LiPo
battery pack.
6 rapid tones = 6
• The second set of tones indicates the brake status. One tone indicates brake
“ON” and two tones indicates brake “OFF”.
NOTICE: Connecting the battery to the ESC with incorrect polarity will damage
the ESC and void the warranty.
8. The ESC is now ready for use.*
9. Reinstall the canopy hatch.
* While additional programming of the ESC is not necessary to operate your
aircraft, programming options are available. Visit www.horizonhobby.com for
complete instructions on programming the included ESC.
80–90mm
back from the leading
edge at the wing root
The center of gravity location is measured from the leading edge of the wing at the
root with the landing gear down. The CG location is adjusted by moving the battery
pack forward or backward in the battery compartment.
NOTICE: Install the battery in the aircraft and install the canopy, but do not arm
the ESC while checking the CG. Personal injury may result.