OPERATOR’S MANUAL

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Failure to read and follow the Operator’s Manual and all 

operating instructions can result in death, bodily injury, 

and/or property damage. Save this manual for future 

reference.

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Crop Inspection

Terrain Modeling

Power Grid Inspection

Construction Security

Infrastructure Wildlife Studies
STARK HX8

Efficiency Octocopter

31.4 Lbs.

21.4 Lbs.

25-30 minutes

Aluminum & CF

12S 44000mAh 

U10+, 28” Prop

EFFICIENCY SERIES MULTICOPTER

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MaxRecommended TakeoffWeight 52.8lb

NET Takeoff Weight

(w/ 2 x 22,000 mAh Li-Po Batteries) 31.4lb

MaxRecommendedPayload 21.4lb

Hovering Accuracy (in GPS Mode)

Vertical:+/-0.5m

Horizontal:+/-1.5m

MaximumWindResistance <8m/s(17.9mpg/28.8km/h)

Max Yaw AngularVelocity 150deg/s

Max Tilt Angle 35degrees

Ascent/Descent +/ 6m/s

Flight Duration at 52.8lbAUW 24Minutes

WorkingEnvironmentTemperature -14F - +104F

Speed 0 knots (hover) – 50 knots (maximum)

MaxAltitude

400 feet AGL and no more than 200 feet above an elevated platform (check current 

FAA guidelines)

Return-‐to-‐Home Failsafe

Engagement:

1) UAV loses signal with GCS

2) Failsafe switch (SF switch) engaged

3) Low Battery Levels

Low Voltage Protection

First Level Protection:

If power levels drop below 21.0V, low voltage protection is activated: 

a. LED Warning (yellow& flashing); b. RTL(Return-to-Landing) engages. 

Second Level Protection

If power levels reach 20.5V,LED Warning (red & flashing) AND RTL are engaged

KEY FEATURES

•9 TYPES OF MULTI-ROTORAND A CUSTOMIZED MOTOR MIXER

•INTELLIGENT ORIENTATION CONTROL (IOC)

•POINTS OF INTEREST (POI)

•INTELLIGENT LANDING GEAR FUNCTION

•AUTO RETURN-TO-HOME /ONE-KEY GO-HOME

•MULTI-ROTOR ONE-MOTOR FAIL PROTECTION

PLATFORM SPECIFICATIONS

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CARRYING PLATFORM

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MODULAR 

Landing gear 

& PAYLOAD 

PLATFORM
FLIGHT CONTROLLER

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Pixhawk Specifications

Processor

 32-bit ARM Cortex M4 core with FPU

 168 Mhz/256 KB RAM/2 MB Flash

 32-bit failsafe co-processor

Sensors

 MPU6000 as main accel and gyro

 ST Micro 16-bit gyroscope

 ST Micro 14-bit accelerometer/compass 

(magnetometer)

 MEAS barometer

Power

 Ideal diode controller with automatic 

failover

 Servo rail high-power (7 V) and highcurrent ready

 All peripheral outputs over-current 

protected, all inputs ESC protected

Interfaces

 5x UART serial ports, 1 high-power 

capable, 2x with HW flow control

 Spektrum DSM/DSM2/DSM-X Satellite 

input

 Futaba S.BUS input (output not yet 

implemented)

 PPM sum signal

 RSSI (PWM or voltage) input

 I2C, SPI, 2x CAN, USB

 3.3 and 6.6 ADC inputs

Dimensions

 Weight 38 g (1.3 oz)

 Width 50 mm (2.0”)

 Height 15.5 mm (.6”)

 Length 81.5 mm (3.2”)

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DRIVE SYSTEM: Brushless Motors

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T-Motor U10+

KV.........................................................80

Configu ration....................................36N40P

Shaft Diameter..................................15mm

Motor Dimensions 

(Dia.*Len)............................................Φ88.6×40mm

Weight(g)............................................500g

Idle current(10)@10v(A).....................0.8A

No. of Cells(Li-Po)...............................6-14S

Max Continuous current(A)180S......33A

Max Continuous Power(W)180S......1500W

Max. efficiency current......................2-18A>90%

internal resistance.............................95mΩ

Propeller: 28” Carbon Fiber
ELECTRONIC SPEED CONTROLLER

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Features

 High performance microprocessor brings out the

best compatibility with all kinds of motors and

the highest driving efficiency.

 Throttle range can be configured to be

compatible with all transmitters currently

available on market.

 Smooth, linear, quick and precise throttle

response.

 CNC Aluminum alloy enclosure, IP55 PCB with

nano technology, widely used in UAV agriculture,

search and resucue, etc.

 Separate voltage regulator IC for microprocessor

to get a better anti-jamming capability.

 Multiple protection features: Low-voltage cutoff protection / over-heat protection / throttle

signal loss protection.

 USB supported. The firmware of the ESC can be

updated by the USB adapter.

 Several kinds of Program Cards are supported.

Very easy to program the ESC at home or at the

field

SPECS

 Output: Continuous 80A

Burst 105A up to 10 Secs.

 Input Voltage: 6-12 cells lithium battery.

 BEC: None

 Signal Frequency: Up to 600Hz

 Size: 77mm (L) * 35mm (W) * 18mm (H).

 Weight: 94g.
POWER SOURCE

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Product Type: Lithium Polymer

Capacity: 22000mAh

Voltage: 22.2V

Max Continuous Discharge: 20C (440A)

Max Burst Discharge: 40C (880A)

Weight: 2467g

Dimensions: 55*123*220mm

Balance Plug: JST-XH

Discharge Plug: XT150/AS150,etc

Charge Rate: 1-3C Recommended, 5C Max

6S Li-Po Batteries
RADIO TRANSMITTER

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SA: Flight Mode

UP - Loiter

CNTR - Alt. Hold

DOWN - Stabilize

SD: Blank

RD: Zoom Control for FPV Camera 

Prior to every flight, ensure all switches are in their default positions, and the Tx

battery is sufficiently charged. We recommend charging your Tx fully for every use. Use

the following infographic to memorize the default switch positions and their functions:

SF: RTL

FUTABA 14SG

2.4 Ghz 14-channel
915Mhz TELEMETRY MODULE

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Specs:

 Supply voltage: 3.7-6 VDC (from USB or DF13 connector)

 Transmit current: 100 mA at 20 dB

 Receive current: 25 mA

 Serial interface: 3.3 V UART

 Size: 25.5x 53x11 mm (without antenna)

 Weight: 11.5g (without antenna)

3DR 

TELEMETRY

Module

Features:

• Interchangeable air and ground modules

• Micro-USB port

• 6-position DF13 connector

• 100mW maximum output power (adjustable)

• -117dBm receive sensitivity

• Based on HopeRF’s HM-TRP module

• SMA connector

• 2-way full-duplex communication through adaptive TDM

• UART interface

• Transparent serial link

• MAVLink protocol framing

• Frequency Hopping Spread Spectrum (FHSS)

• Configurable duty cycle

• Error correction corrects up to 25% of bit errors

• Open-source SIK firmware

• Configurable through *Mission Planner and *APM Planner
FPV VIDEO TRANSMISSION

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Flysight

Black Mamba 

TX5820-V2 

5.8 Ghz 2000mW

Specifications:

• Working frequency: ISM 5.8GHZ

• Available channels: 32CH

(compatible with Fatshark, ImersionRC and DJI)

• Transmitting power: 2W (33dbm, +/- 1dB)

• Transmitting distance: >9km (depends on terrain)

• Power supply: DC 6-28V

• TX output voltage: 5V/12V(Vin=Vout)

• Comsumption current: 800mA

• Antenna impedance: 50Ω

• Antenna gain: 2dB

• Antenna connector: SMA/RPSMA optional

• Dimension: 55*35*27mm(L*W*H)

• Weight: 52g

Frequency Channel Group: A, B, E, F

A: 5865 5845 5825 5805 5785 5765 5745 5725Mhz

B: 5733 5752 5771 5790 5809 5828 5847 5866Mhz

E: 5705 5685 5665 5645 5885 5905 5925 5945Mhz

F: 5740 5760 5780 5800 5820 5840 5860 5880Mhz

Features:

- 32 Channels

- High power (2000mW), long distance (about 9Km)

- On-board quiet fan built-in

- Very bright LED display

- Not affected by 2.4GHz R/C Radios

- Compact size, light weight, easy to carry

- Special design with cover.
FIRST PERSON VIEW: Camera

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CCD

Size 1/3 inch, Interline Transfer CCD

Total Pixels 795(H)*596(V)

Effective Pixels 752(H)*582(V)

SYNC

Scanning System 2:1 Interlace

Synchronization Internal/ VD-Lock

Frequency H: 15.625 KHz/V: 50.00 Hz

ELECTRICAL

Resolution 700TV Lines(Min.): B/W (WIDE)

Min. Illumination 0.7 Lux/F1.8 (50 IRE); 

Color / 0.02 Lux/F1.8 (50 IRE); B/W S/N (Y signal) 50 dB

Video Output CVBS: 1.0Vp-p/75Ω

Focus Auto/Manual

Zoom Movement Speed: 3 seconds

IRIS Control Auto

Lens Initialize Built-In

Camera Title OFF/ON (Displayed 15 characters)

Day & Night Auto

Gain Control Auto, Manual(120-240)

Back Light Compensation ON/OFF

Electronic shutter speed:AUTO (X128-1/50sec-1/10,000 sec)

OPTICS

Optics 10X, f=3.8 to 38.0mm(F1.8-3.2)

Min. Focus Distance 1,000mm

Angle/Field of view:

H: Appr. 51.2°(Wide) to 5.58°(Tele)/V: 

Appr. 39.3°(Wide) to 4.27°(Tele)

FH-10S Zoom
FIRST PERSON VIEW: 5.8Ghz MONITOR/Rx

Specification:

32channels 5.8GHz Dual Diversity Receiver 32 ch. Fatshark

compatible small HDMI monitor Supports Airwave and

NextWave transmitters and many others on 5.8Ghz due to the

32channel; Compatiable 5.8GHz Dual Diversity Receiver 32 ch.

Fatshark compatible small HDMI monitor with Fatshark,

airwave, Immersionrc and others. Fully compatible with 2.4Ghz

R/C radios; Screen No Blue Screen, Support image rotation

180degree and Image Zoon function HDMI Support HDMI

1.3digital input port. Resolution (1024X600px)

DIVERSITY MONITOR FEATURES:

High sensitivity diversity receivers for the best possible

reception Supports DNR High resolution screen (1024x600px)

No blue screen. Supports Airwave and NextWave transmitters

and many others on 5.7Ghz due to the 32Channel diversity

receiver. Supports image rotation. HDMI 1.3 digital input port

RECEIVER:

Frequency: ISM 5.8Ghz RX sensitivity: -90dBM

Diversity: Yes

Video Standard: NSTC/PAL (automatic switching)

Video Output Level: 1.0Vp-p, 75ohm

Audio Output Level: 1.0Vp-p, 10Kohm

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FlySight

BlackPEarl 32 Ch.
ROUTINE PRE-FLIGHT INSPECTION

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WHAT SHOULD I INSPECT?

Landing gear:

If you operate a UAV with retractable landing gear, ensure the gear components, and especially, screws attaching it to 

the frame of the UAV are not loose and servos/motors are functional..

Motors:

Inspect motor mount screws for tightness. With your hand, grasp each motor and check for strong attachment to the 

motor mount. If the motor “wobbles”, inspect the four inner screws under the motor mount. Motor replacement is 

advised if significant vibration is observed, and steps above are not remedial.

Propellers:

Improper propeller mounting could result in motor failure due to overheating, as well as decrease in performance and 

efficiency. Whether you are using self-tightening propeller mounts, or directly mount the prop onto the motor, apply 

significant torque to the mounting screws.

Battery Plates:

Ensure the battery plates’ columns are torqued fully, and the carbon fiber plate is snug. When using Velcro 

straps over the plate to secure a battery, tighten just enough without bending the plates on either edge.

GPS & IMU

Make sure arrows point directly forward. Insure GPS and Compass are properly calibrated.
PRE-FLIGHT CHECKLIST

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•WEATHER conditions are optimal.

•You are not endangering other HUMANS.

•UAV, Tx and Gimbal BATTERIES are fully charged.

•All COMPONENTS are intact and functional (see page 5).

•No significant sources of magnetic/radio INTERFERENCE.

•All LED indicator colors are functioning.

•CALIBRATION done properly (see page 6).

•You have familiarized yourself with flight ENVIRONMENT

•You have a PLAN.

•MOTORS spool up.

Enjoy your flight!
SAFETY PROTOCOL: Preflight

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✓ Check batteries with voltmeter to insure fully charged and ready for use.

✓ Inspect batteries for damage or defects that may affect proper operation.

✓ Inspect propellers are mounted correctly.

✓ Inspect propellers for cracks,chips or damage that may result in sudden loss of propulsion or 

uncontrolled flight.

✓ Inspect dampening absorbers are in good condition;not brokenor worn.

✓ Camera lens cap has been removed.

✓ Micro SD card has been inserted.

✓ Gimbal is functioning properly.

✓ Check weatherforecast for wind advisory or other conditions that may adversely impact flight.

✓ Check predetermined flight area forTFR,restrictions,etc.

✓ Check for NOTAMs for flight area.

✓ Contact respective airport towers to advise of estimated time of flight,estimated flight duration,

flight location,estimated maximum altitude of flight and any other pertinent information.

✓ If required,inform local FAAFSDO

✓ Inspect flight area for:

 vicinity of medical helipads/heliports

 vicinity of light poles

 vicinity of trees

 flocks of birds that may cause interference and potential flight impact

 vicinity of any elevated obstructions that may pose potential flight hazard

 vicinity of roadways with moderate to heavy traffic that can be distracted

 public gatherings that may attract viewers

 optimal point of controlfor best sight of sUAS while in flight
SAFETY PROTOCOL: Flight

 Takeoff and land from same predetermined safe area.

 Remain alert to birds, aircraft, curious public and 

approaching vehicles.

 PIC or Visual Observer will avoid any distractions during 

flight.

 Restrict flight to minimal altitude sufficient to acquire 

needed results.

 Remain prepared for emergency landing at all times.

 Pay attention to flight time and battery life percentage.

 Land sUAS and shut down propulsion immediately 

following landing.

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SAFETY PROTOCOL: Post-Flight

 Disconnect battery(ies) to prevent accidental

activation of propulsion system.

 Inspect sUAS for physical irregularities/component

malfunction.

 Secure sUAS in a safe location.

 Log your flight time, sUAS performance and other

pertinent information

 Remove all warning signs from public access areas.

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SAFETY PROTOCOL: Emergencies

Immediately land the sUAS at the safest

and closest ground location if:

 the PIC and/or the Visual observer is being distracted

from focusing on the flight and safety.

 a manned aircraft is heard or seen in vicinity of the sUAS.

 a sudden change in weather (thunderstorms and/or

convective activity).

 birds entering the proximity of the flight.

 any sudden unsafe event that can cause collision,

distraction or interruption of control.

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DISCLAIMER

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Harris Aerial LLC accepts no liability for damage(s) or injuries incurred directly or indirectly from the use of this

product under any conditions, including, but not limited to:

1. Damage(s) or injuries incurred when users are under the influence of alcohol, drugs, anesthesia, and other awareness-altering

substances, dizziness, fatigue, nausea and any other mental or physical conditions that could impair your ability to safely operate the

UAV.

2. Damage(s) or injuries caused by intentional unsafe aircraft operation.

3. History of physical, mental and other health conditions (including inadequate eye-sight), which may prevent you from being able to

operate the UAV safely and effectively.

4. Failure to follow the guidance of the manual, altered assembly or improper operation.

5. Malfunctions caused by refit or replacement with non-original accessories and parts.

6. Damage(s) or injuries caused by using third party products, fake products.

7. Damage(s) or injuries caused by lack of experience and/or subjective misjudgment.

8. Damage(s) or injuries caused by mechanical failures due to erosion, component aging and malfunction.

9. Damage(s) or injuries caused by continued flying after low voltage protection alarm is triggered.

10. Damage(s) or injuries caused by knowingly flying the aircraft in abnormal conditions (where water, oil, soil, sand and other

unknown material could ingress into the aircraft);

11. Damage(s) or injuries caused by flying in situations and environments where magnetic and/or radio interference is present,

government regulated no-fly zones, or the pilot and or UAV is in low-lit, blocked, fuzzy sight, and other conditions not suitable for

operating a UAV.

12. Damage(s) or injuries caused by flying/operating a UAV in bad weather, such as a drizzle, rain, snow, heavy wind, sandstorm, hail,

lightning, tornadoes, hurricanes etc.

13. Damage(s) or injuries caused when the aircraft is in the following situations: collision, fire, explosion, floods, tsunamis,

subsidence, ice trapped, avalanche, debris flow, landslide, earthquake, and any other situations outside of direct or indirect control of

Harris Aerial LLC.

14. Damage(s) or injuries caused by privacy invasion and infringement such as any data, audio or video material recorded by the use of

the aircraft.

15. Damage(s) or injuries caused by the misuse of the battery, protection circuit, RC model and battery chargers.

16. Other losses that are not covered by the scope of Harris Aerial LLC liability.

No part of this product or manual shall be reproduced in any form without the prior written consent or authorization of .

Harris Aerial LLC. No patent liability is assumed with respect to the use of the product or information contained herein.