Mount the wing, Ground check and range check, Takeoff – Great Planes Evader EDF Sport Jet EP ARF - GPMA1800 User Manual
Page 22: Hand launch
 
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Mount the Wing
Mount the wing with the two 3 x 15mm Phillips screws and 
fl at washers. With the canopy off, don’t forget to connect the 
aileron servo to the receiver through the cockpit.
Ground Check and Range Check
Always perform an operational ground check of your radio
before the fi rst fl ight of the day following the manufacturer’s 
instructions that came with your radio. This should be done 
once with the motor off and once with the motor running 
at various speeds. If the control surfaces do not respond 
correctly, do not fl y! Find and correct the problem fi rst. Look 
for loose servo connections or broken wires, corroded wires 
on old servo connectors, or poor receiver antenna routing. 
Takeoff
First, it’s a good idea to use a fl ight timer to alert you when 
it’s time to land—you always want reserve battery power 
because—especially on the fi rst fl ight—more than one 
landing attempt may be necessary. Throughout testing 
we set our timer to four minutes (of motor run time). This 
should provide an additional minute of run time for landing 
approaches. For your fi rst fl ight it might even be a good idea 
to set your timer to three minutes. 
In order of preference (with the bungee-launch being the
most preferable), the Evader may be bungee-launched with 
the included bungee system, hand-launched by an assistant 
or hand-launched by the pilot. It is acceptable to hand-launch 
the Evader, but it must be thrown just about as hard as 
possible to acquire suffi cient velocity. However, sometimes 
the harder a person throws an object the less control they 
may have possibly causing a bad launch. This is amplifi ed 
by the fact that there is no perfect way to grab the Evader. 
Additionally, while it is possible for the pilot to hand-launch
the Evader, for obvious reasons it is preferable to have an 
assistant launch it for you (this way, your hands will already 
be on the transmitter). We have performed several hand-
launches, so if this is your preference here’s the best way:
Hand Launch
Have your assistant (or yourself) hold the model by the 
bottom of the fuselage just behind the wing. Use your pinky 
fi nger and the fi nger next to it to steady the plane and level 
the wing. 
As you always should 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. Make sure your launch is 
directly into any prevailing wind. Inform your assistant of your 
intentions and make sure he acknowledges, then apply full 
throttle. Under control, your assistant should run for several 
steps, then throw the plane into the air at about a 40° angle 
doing his best not to release it into a roll. 
Expect the Evader to briefl y lose altitude before it gains 
enough airspeed to establish a climb. At this point you 
should be able to pull full, high-rate elevator to get the nose 
up. Always be ready on the ailerons to correct any unwanted 
roll and keep the wing level—this all will happen within a few 
seconds.
At this point you’re in the clear and the model will climb as it
rapidly continues to gain speed.
1. Throw the Evader
about as hard as you 
can at approximately
a 30-40º angle.
2. Expect the Evader to briefly
dive before it gains enough
velocity to establish a climb.
You should be able to pull full
elevator to keep it airborne.
3. Now you’re in the clear.
Allow the Evader to gain 
speed and begin climbout.
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