EXHIBIT C

Page 1 of 2

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) Lithium Polymer battery power supply.

c. Flight Controller – Freefly Synapse

d. AUW (All Up Weight) – 16–30 pounds

II. Preflight Checklist

a. Remote controllers, 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

Page 2 of 2

f. Check GPS receiver is aligned and secure.

g. Attach MoVI gimbal (latch 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 with 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. Confirm Camera SD card has been inserted. 

r. Confirm motors 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 Takeoff1: 13.6 kg (30.0 lbs)

Maximum Useful Load2: 9.5 kg (21.0 lbs)

Maximum Payload3: 6.8 kg (15.0 lbs)

Typical Standard Empty Weight: 4.1 kg (9.0 lbs)

SPECIFIC LOADINGS

Typical Specific Power 4: 145 W/kg

Thrust Ratio at Max Takeoff Weight1: 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