Perform A Range Check
!
As a precaution, an operational ground range test should be performed before the first flight each time out.
performing a range test is a good way to detect problems that could cause loss of control such as low batteries
defective or damaged radio components or radio interference. This usually requires an assistant and should be
done at actual flying site you will be using.
!
First turn on the transmitter. Then, install the fully charged battery into the fuselage and hold it in place with the
hook-and-loop strap. Connect the battery and install the hatch.
!
Remember, use care not to “bump” the throttle stick. Otherwise, the propeller will turn, possibly
causing damage or injury.
!
!
With the antenna on the transmitter collapsed (not extended ), begin walking away from the model operating
the controls in a predictable pattern (for example: Up, then down elevator. Right, then left aileron. Right, then
left rudder). While moving the control surfaces, also vary motor rpm.
Have your assistant alert you if the controls fail to respond or if they move suddenly or erratically. You should
be able to maintain control up to a distance of approximately100’ [30m].
!
If the controls respond erratically or if anything else seems wrong, make certain all the servo wires are
securely connected to the receiver and that the transmitter and receiver batteries are fully charged. If you
cannot find a mechanical problem with the model , it is slightly possible that there is radio interference
somewhere in the area. One option would be to try another range check at an alternate flying site.
!
!
After the range check, fully extend the antenna.
!
Monitor and limit your flight time using a timer such as the one on your wrist watch. When the batteries are
getting low you will usually notice a performance drop before the ESC cuts off motor power, so when you
notice the plane flying slower you should land. Often (but not always!), power can be briefly restored after the
motor cuts off by holding the throttle stick all the way down for a few seconds.
!
!
To avoid an unexpected dead-stick landing on your first flight set your timer to a conservative 4 minutes.When
the alarm sounds you should land your model.
!
!
When you learn how much flight time you are getting you can adjust your timer accordingly. Always be
conservative so the motor won’t quit unexpectedly and you will have enough battery to land under power.
!
!
Tack Off
!
Until you have become comfortable with flying your plane, do not fly if the wind speed is greater than
10 mph [ 16 kilometers /hr].
!
!
One final check before takeoff :
always double - check the flight control response to your inputs from the
transmitter before every flight.
Be certain the ailerons , elevator and rudder respond correctly and that none
of the controls have inadvertently become reversed.
!
!
Don’ t forget to fully extend the transmitter antenna.
!
!
If the surface is smooth ( such as paverment or blacktop) the plane can take off from the ground. But most
grass is probably too tall, so if flying from grass the model will have to be hand launched.
!
!
ROG (Rise Off Ground) Tack Off
!
If taking off from the ground, place the model on your “ runway ” with the nose pointing into the wind--this will
!
!
RANGER EX — Professional FPV Platform
/
13 16
Summary of Contents for RANGER EX
Page 16: ... 2014 VolantexRC Co Ltd ...
