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Bungee launch – Great Planes Evader EDF Sport Jet EP ARF - GPMA1800 User Manual

Page 23

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Bungee Launch

The great thing about the bungee launch is its consistency—you should be able to get a perfect bungee-launch every time.

Also, bungee-launching the Evader by your self is much easier than hand-launching it by your self, but for the fi rst one or two,

it’s still a good idea to have an assistant launch it for you so your hands will be ready on the transmitter.

NO

(Uphill)

YES

(Downhill or level)

Find a suitable location to string out the bungee that is fl at or has a downhill grade—try not to launch uphill. And be sure the
ground will hold the stake securely. Push the stake into the ground at about a 45° angle away from the launch, then unwind
the bungee so the launch will be directly into the wind. As you unwind, inspect the tubing and cord to make sure there are no
cuts, cracks, tears, knots or other defects and make sure the line and cord are securely connected to the rings and stake.

When ready, turn on the transmitter and connect the battery.

As you should always do before every fl ight, double-check

that the controls are responding properly and in the
correct direction
, then arm the motor and run it up for a
second to make sure it is making full power.

Pick up the tow ring (do not connect it to the model yet) and
stretch out the bungee by walking approximately twenty-fi ve
steps (approximately 70’ [21m]). Holding the model securely,
connect the bungee to the tow hook under the wing. For

launching, the model should be held by the fuselage over the

wing as shown in the photo.

Hold the model waist-high away from your side so the plane won’t catch your leg. If using an assistant, inform him of your
intentions, make sure he acknowledges, and then apply full throttle. Holding the Evader at approximately a 30° to 40° angle,
don’t just let go, but give it a good push into the air—this is key. All within a second or two, the Evader will initially climb,
level off, then possibly angle slightly downward before the elevator takes over and the Evader over-fl ies the bungee. From
the moment the plane is released from your (or your assistant’s) hand you should initially be holding some up elevator
working the stick as necessary to keep the plane level or slightly climbing. Also be ready on the ailerons to keep the wing
level so the Evader doesn’t veer off to the side (though the trim would have to be pretty far off for this to happen).

Once the bungee releases “keep the pedal to the metal” and begin a shallow climb out, but be ready to make your fi rst turn
quickly because it’s going to get far away quickly.