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NORMAL PROCEDURES
PREFLIGHT CHECKLIST
o
Confirm all communication radios are operational
Radio with ATC
Radios with others in the group
o
Set a perimeter of 100 meters
Area must be clear of people to avoid collision
o
Check for overhead power lines and other obstacles to avoid
o
Check structural integrity
In event of prior crash, inspect all booms, props and motor mounts for excessive flex
indicating structural fatigue/failure
o
Have a manual flight plan avoiding obstacles.
o
Load auto flight plan if using one
Be sure that the total flight time is under 10 minutes to avoid low battery
o
Clean lens
Remove lens cap
o
Ensure camera has SD card installed
Many flights have been wasted due to this!
o
Install batteries
Ensure that the straps are tight and the Velcro keeps the batteries from moving which
will avoid a shift in the CG (Center of Gravity – or that it balances evenly)
o
Check CG (Center of Gravity)
Lift the copter on each of the 3 pairs of arms. The copter should balance properly. If
not, do not fly. Rearrange the equipment such that the CG is
o
IMU pointing forward
The Inertial Measurement Unit is set so that it must face forward
o
GPS/Compass installed, limited free play, pointing forward
This device must be installed with a screw to hold it in place. It cannot vibrate easily.
If it does not point forward, the corrections in ATTI and GPS mode will be incorrect
and it will crash. The FC will provide a warning with constant flashing white lights.
o
Level copter using a bubble level with front pointing in correct direction for course lock – do
not turn on
Keep in mind the best angle for pointing the landing gear in the direction that will
keep the landing gear out of the shot when flying.
o
Turn on Pilot Tx
o
If using the rate gyro, set it at the correct position. This is usually a slider switch. Gains
should have the range set from 200 – 350. Use the highest gain possible which does not cause
oscillation.
o
Check Model Selection on Tx to be S900
o
Throttle on Tx Down
o
Return to Home switch Off
o
Adjust gain to correct position (if required)
o
Manual Flight Mode Switch to manual (not ATTI or GPS mode)
o
Flight Path Switch Off – Not Course or Home or POI
o
Check Tx battery voltage (above 7.5v)
These settings above are required to initialize the copter properly. If the switches are
in the incorrect position, it will not initialize properly which may cause some of the
functions like course lock or GPS mode to not operate properly.
