3D R H520-G Technical specifications

3DR H520-G
Flight Manual
V 1.5

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3DR H520-G
Flight Manual V 1.5

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TABLE OF CONTENTS
1.0 General
1.1 Unfolding The Arms 7
1.2 Mounting The Camera 7
1.3 SD Card Selection 8
2.0 Overview
2.1 Limitations 9
2.2 Aircraft Servicing And Maintenance 12
3.0 Normal Procedures
3.1 Site Scan Firmware Update 18
3.2 Calibrations 19
3.3 Pairing With Aircraft 22
3.4 Aircraft Lights And Sounds 23
3.5 Charging 26
3.6 Flight Operations 26
4.0 Emergency Procedures
4.1 Return Home/Return To Launch (RTL) 31
4.2 Battery Failsafe 31
4.3 Emergency Shutdown 31
4.4 Five Motor Mode 31
4.5 Exit Autonomous Flight 31
4.6 RC/Data Link Loss Failsafe 31
5.0 Troubleshooting
5.1 Battery Recommendations 32
5.2 Aircraft Calibrations 32
5.3 Return Home/Return To Launch (RTL) 32
5.4 Pairing Troubleshooting 33

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1.0 GENERAL
Thank you for purchasing the 3DR H520-G Commercial Series Unmanned Aircraft. This guide provides
information on setup, usage of, and safety parameters for the 3DR H520-G.
The 3DR H520-G has advanced features to assist with government, commercial and other aerial
operations. The sUAS comes equipped with the ST10C controller, which is a simple and intuitive remote
controller incorporating manual flight control sticks and controls for primary and emergency systems.
For mission planning, fleet management and automated flight modes, 3DR Site Scan is the
recommended platform. To get started, visit the iOS App Store and search and download Site Scan - LE.
What is in the box? (standard package)
• H520-G Hexacopter
• E90 Camera
• Car Charger
• SD Card
• DY5 Dual Smart Charger
• ST10C Controller
• Propellers
• SC400-4H Balancing Smart Charger with Power Supply
• Pelican Case
• 4 Batteries
• iPad Mini Holder
* Dierent packages may include dierent accessories.

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1.1 UNFOLDING THE ARMS
Remove the H520-G from the storage/transport case and gently lift the arms until you hear a click. Test the
locks by gently lifting up and pressing down on the arms several times. To unlock the arms, press the Press
button on the base of the arms. On new systems, it may be necessary to release the arms while lifting up
on the bottom of the motor with one hand and pressing the Press button with the other. Doing so relieves
some of the pressure on the locking system.
Note: Do not depress the Press button on the arms while unfolding and locking them into place; doing so
may cause the arms to not engage the locking system.
1.2 MOUNTING THE CAMERA
1.2.1 E90
The E90 camera is a wide-angle, high-resolution, gimbal stabilized imaging system perfectly suited for use
in applications that require high-quality photos and videos. The E90 utilizes a 20MP 1-inch sensor and the
H2 high speed image processing chip.
1.2.2 INSTALLING THE CAMERA GIMBAL
Insert a supported micro SD card (see 1.3 SD Card Selection) in the rear of the E90 camera and mount the
camera on the H-Mount. Using the arrow on top of the camera gimbal pointed towards the H520-G, slide
the camera gimbal (arrow towards the airframe) until the front latch clicks. Gently pull the camera gimbal
away from the aircraft to check that it is properly installed. If the gimbal comes o the rail, or is not solid and
secure, remove and reinstall the gimbal.

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1.2.3 CHANGING THE CAMERA GIMBAL
Power down the H520-G using the power button on the top of the airframe, press the camera latch on the
front of the camera mount and slide the camera gimbal o the mount. Select the preferred camera gimbal
for use. Using the arrows on top of the camera gimbal, slide the camera onto the mount until the camera
stops. Test the gimbal to ensure the camera is installed. Power on the H520-G using the power button on
top of the airframe. Occasionally lubricating these slides with graphite will keep them sliding smoothly.
1.3 SD CARD SELECTION
3DR requires an SDXC Class 10 UHS-3 micro SD card for capturing high-resolution images and recording 4K
video. Using the UHS-3 card allows the camera buer to record to the micro SD card faster, resulting in less
buer overrun and allowing for over-the-air firmware updates.

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2.0 OVERVIEW
2.1 LIMITATIONS
• Do not fly in precipitation is prohibited
• Continued flight in precipitation is not recommended; land as soon as possible
• Flight in visible moisture is not recommended
• Flight in Known Icing (FIKI) conditions may result in vehicle failure
• Takeo, landing and flight in dust or sand not recommended
• Flight beyond visual line of sight is not recommended
• Maximum Wind Speed: 11 m/s (25 mph, 21.7 kts, 40 kph)
2.1.1 AIRCRAFT — 3DR H520-G
• Flight time: up to 28 minutes (depending on payload weight)
• Size: 520x457x310 mm
• Airframe weight: 1645g (3.6 lbs)
• Maximum gross takeo weight: 2633 g (5.8 lbs)
• Battery: LiPo
• Battery capacity & voltage: 5250mAh 4S/15.2V (79.8Wh)
• Charger: SC4000-4H
• Transmitter: ST10C Ground Station
• Maximum flying height (relative altitude): 500m
• Maximum rotation rate: 120 deg/s
• Maximum roll angle: 35 deg
• Maximum climbing speed: 4m/s
• Maximum horizontal speed (Manual mode): 17m/s (38mph)
• Maximum horizontal speed (Angle mode): 13.5m/s (30mph)
• Maximum descending speed: 2.5m/s

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2.1.2 GROUND STATION: ST10C CONTROLLER
• Compatible with iPad running iOS 10.0+ using an Apple USB cable
• Video, telemetry and RC transmitter links: 5.8 GHz WiFi and 2.4 GHz WiFi
• Control transmission distance (optimal conditions): Up to 1.6km/1 mile
• Live feed video output: HDMI
2.1.3 INCLUDED CAMERA: E90
• Weight: 350g
• Focal length: 23mm
• Color sensitivity: RGB
• Compression bit rate: 100Mbps
• Compression type: AVC/HEVC
• Digital noise reduction: 2D filter
• Eective pixels: 20 megapixels
• Elements: 7G2P
• View field: DFOV 91
• Frame rate: 24/25/30/48/50/60/120
• FSTOP range: F2.8
• Gimbal axes: 3
• Angular vibration range: ± 0.02°
• Maximum control range: TILT: -90° - 15° / PAN: 360° limitless
• Maximum control speed: TILT: 30°/s / PAN: 120°/s
• ISO range: 100 - 6400
• Video resolution: 4K 60FPS
• MTF: 104lp/mm / CENTER: 0.6 / CORNER: 0.4
• Sensor size: 1 inch
• CMOS shutter speed: 1/8000s - 4s
• Shutter type: Rolling
• SD card class: 10 u3 min. 90 Mbit/s SNR ISO100, SNR 36db
• Storage temperature: -10°C - +50°C
• Operating temperature: -10°C - +40°C
2.1.4 PERFORMANCE CHARACTERISTICS
• Maximum altitude: 4500 m (14,763 ft) maximum density altitude
• Maximum and cruise airspeeds: 17 m/s (38 mph) maximum, 9 m/s (20 mph) cruise
• Maximum endurance: 25 minutes with standard E90 Camera payload
• Maximum range: 13.5 km (8.4 SM)
• Rate of climb: 4 m/s (780 ft/min)
• Rate of descent: 3 m/s (600 ft/min)
• Maximum glide slope: N/A