Exhibit C Pinnacl X Chameleon Multirotor Maintenance

Pinnacl X Page 1

Maintenance and Testing

 Maintenance and repair must be recorded in the maintenance log book.

 Inspection prior to first flight each day, see preflight inspection.

 The Chameleon, DJI S1000 or S900 is not authorized to fly over, public areas, road ways, boat

traffic areas or any other areas which involve flight over private property and people. The 

aircraft is approved for filming flight over TV and movie sets with the necessary approvals.

Multirotor Preflight Procedure

 Fully charged flight pack maximum allowed cell voltage difference .1 V

 Autopilot secure on vibration isolation mounts

 GPS secure

 Receiver secure

 Data radio secure

 Video transmitter secure

 Camera secure and camera battery charged

 Secure battery in correct location for a balance aircraft

 CG correct 

 Arm bolts tight (check each flight)

 Motor bolts tight (check each flight)

 Landing gear bolts tight (check each flight)

 Check for cracks in frame, arms, landing gear, and camera mounts

 Check propellers for cracks and replace as necessary

 Propellers on correctly (See diagram in Chameleon case)

 Propellers on tight (try to turn propellers while holding the motors. Check each flight)

 Motor spring clip check (Pull up on propeller, if the propeller and motor case moves up the shaft 

spring clip may be damage or disconnected. Replace motor or install a new clip. Check each 

flight)

50 hour or 2 month Inspection and Test

 Remove top cover, bottom cover (if on aircraft) and top frame plate

o Check for cracks and replace as necessary

 Check the security of the, receiver, data radio, auto pilot, ESC and wiring

 Replace Velcro tape and or vibration mounting as necessary

 Check the ESC connections to the autopilot

 Check the receiver connection to the autopilot and receiver

 Check the wiring to the GPS, buzzer, switch, data radio, video and power wiring

 Use lock tight medium on bolts and reassemble the top frame

 Recalibrate aircraft as necessary if any of the electronics were replaced

 Range check the pilot an observer transmitters, see transmitter manuals

 Perform preflight check list

 Bench test multirotor, pitch roll and yaw control. Check maximum power
Exhibit C Pinnacl X Chameleon Multirotor Maintenance

Pinnacl X Page 2

 Record flights using GSC

 Flight test aircraft (In all cases listed below the multirotor must be controllable to pass)

 Manual mode maximum thrust take off

 Manual mode in hover maximum yaw control

 Manual mode in hover maximum roll and pitch maneuvers

 Manual mode maximum thrust pitch and roll maneuvers followed by switching to LTR

 ATT mode maximum pitch and roll to obtain maximum velocity and release controls

 ATT mode maximum pitch and roll to obtain maximum velocity and release controls and 

maximum YAW followed by switching to LTR

 LTR mode maximum pitch, roll and YAW followed by releasing of the controls

 Fly aircraft a ways away and switch to RTL

 Fly basic patterns in AUTO mode

 Perform post flight check list

100 hr or one year inspection and test

 Replace propellers at 100hrs (Until propeller life is determined)

 Replace motors at 100hrs (Until motor life is determined)

 Replace ESCs at 100hrs (Until ESC life is determined)

 Perform 50hr inspection and test