EXHIBIT C

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### Manual for Freefly Alta Aircraft

Figure 1 Freefly Alta Aircraft 

### I. Aircraft Specifications

a. Type

– Hexacopter
b. Power system

– Direct Drive 3

- Phase PMAC Outrunner motors, Freefly Silent Drive Sine Wave ESC, 6s (22.2V) Lith i um Polymer battery power supply.

c. Flight Controller

– Freefly Synapse
d. AUW (All Up Weight)

– 16

– 30 pounds
II. Preflight Checklist

a. Rem ote controller s , aircraft batteries, ground station receivers and monitors are fully charged.
b. Check condition of props and that they are fully secure

.

c. Boom arms are properly locked and latched.
d. Check all wire connections.

e. Check IMU is aligned and secure.EXHIBIT C

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### f. Check GPS receiver is aligned and secure.

g. Attach MoV I gimbal (latc h Toad

- in

- the

- Hole Quick Release ).
h. Install flight batteries (2) and firmly cinch Velcro straps.
i. Connect battery voltage alarms. j. Turn pilot and gimbal remote controllers on.
k. Power on UAS.
l. Check settings and parameters wi th Freefly GUI (Graphics User Interface)

.

m. Confirm controller unit has found 7 or more GPS satellites.

n. Confirm Pilot Cam video transmitter and gimbal camera HD transmitter are both transmitting to ground station.

o. Perform compass calibration.

p. Confirm controller unit has found 5 or more GPS satellites and the Home Point has been
recorded.

q. C onfirm Camera SD card has been inserted.

r. Confirm m otors can start and are functioning as normal.DIMENSIONS UNFOLDED Length: 1000 mm Width: 1145 mm Height (to base of TITH): 220 mm FOLDED Length: 532 mm Width: 515 mm Height (to base of TITH): 220 mm
POWERPLANT Number of Motors: 6 Motor Type: Direct Drive 3-Phase PMAC Outrunner Motor Model: F45 Motor Max Continuous Power Output: 350 W Motor Max Instantaneous Peak Power: 950 W Electronic Speed Controller: Freefly Silent-Drive Sine Wave ESC
PROPELLERS Material: Carbon fiber with balsa core Propeller Orientation: (3) CW and (3) CCW Props Propeller Type: 18 x 6 Folding
BATTERY Nominal Battery Voltage: 6S / 22.2V Maximum Battery Size: 240 x 180 x 80 mm Maximum Battery Quantity: 2 Battery Packs (Parallel) Battery Connectors: 2x EC5 (Parallel)
WEIGHTS Maximum Gross for Takeof f 1 : 13.6 kg (30.0 lbs) Maximum Useful Loa d 2 : 9.5 kg (21.0 lbs) Maximum Payloa d 3 : 6.8 kg (15.0 lbs) Typical Standard Empty Weight: 4.1 kg (9.0 lbs)
SPECIFIC LOADINGS Typical Specific Powe r 4 : 145 W/kg Thrust Ratio at Max Takeoff Weigh t 1 : 2.0 : 1
LIGHTING AND INDICATION Orientation Lights: RGB LED’s Orientation Light Locations: Outboard on Boom Ends Orientation Light Color: User Definable Status Light: Rear-Facing Red/White LED Accessory Lighting Port: 12 VDC Accessory Lighting Port Location: Outboard on Boom Ends ISOLATION SYSTEM Vibration Isolation System: Silicone O-Rings ISOLATION SYSTEM OPTIONS 1.Soft / Light Payloads: Red O-Rings 2.Medium / Mid Payloads Teal O-Rings 3.Stiff / Heavy Payloads Black O-Rings
PAYLOAD MOUNTING Mounting Locations: Bottom and Top Mount Mounting System: Freefly Toad In The Hole Quick Release
FLIGHT CONTROLLER Model Name: Freefly Synapse Flight Controller Flight Modes: Manual Height Hold Climb Rate Control (Vario) Position Hold Ground Speed Control Return-To-Home Auto-land Supported Inputs: Spektrum, S.Bus, PPM, FPV SD Video Outputs: PWM, I2C, CAN, FPV SD Video w/ OSD Supported Radios: Futaba S.Bus & S.Bus 2 DSMX, DSM2 (Spektrum/JR) PPM, PPM Invert, PPM Graupner Supported Radio Controller Telemetry Systems: Futaba w/ built-in voltage sense port Supported First-Person View Systems: Skyzone BOSCAM Immersion RC Fatshark First-Person View OSD Telemetry: User Configurable Installed Transceivers: Wi-Fi Data Logging Rate: 25 Hz

1. AT SEA LEVEL, STANDARD CONDITIONS. 2. TOP AND BOTTOM MOUNT. INCLUDES BATTERIES. 3. PAYLOAD WEIGHT TOP OR BOTTOM MOUNT. BATTERY WEIGHT NOT INCLUDED AND MOUNTED ON OPPOSITE SIDE FROM PAYLOAD IN TYPICAL CONFIGURATIONS. 4. AT MAXIMUM TAKEOFF WEIGHT, SEA LEVEL, STANDARD CONDITIONS. 

## SPECIFICATIONS