UAS OSC Volume 2

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Operator ID:
UAS Operating Safety Case Volume 2 - UAS Description:
Document reference number:
Document version and date:

Amendment record

Amendment Number	Date	Amended by	Details of changes

CAP722A Table 6

Aircraft and systems description

UAS Model	Mavic 3 Classic
UAS design & manufaturing organisations	DJI

UAS physical characteristics

Empty Mass
Maximum Take-Off Mass (MTOM)	Takeoff Weight: 895 g
Dimensions for Rotorcraft / Multirotor
Length of aircraft body	Dimensions: Folded (without propellers): 221 x 96.3 x 90.3 mm (L x W x H) Unfolded (without propellers): 347.5 x 283 x 107.7 mm (L x W x H)
Width of aircraft body
Height of aircraft body
Propeller Configuration
Propeller Dimensions
Sound power level
Any other relevant information

CAP722A Table 7

UAS performance characteristics

Maximum airspeed	Max Horizontal Speed (at sea level, no wind): 21 m/s No faster than 19 m/s in EU regions.
Minimum airspeed to maintain safe flight
Normal/typical operating height	Max Takeoff Altitude: 6000 m
Maximum operating height
Maximum flight time during normal operation	Max Flight Time: 46 minutes Measured in a controlled test environment. Specific test conditions are as follows: flying at a constant speed of 32.4 kph in a windless environment at sea level, with APAS off, AirSense off, camera parameters set to 1080p/24fps, video mode off, and from 100% battery level until 0%. Results may vary depending on the environment, actual use, and firmware version.
Maximum flight time on an ISA day at cruising speed at normal/typical operating height.
Maximum flight range on an ISA day (normal and emergency conditions)	Max Flight Distance: 30 km
Glide distances
Maximum radio range of the C2 Link

CAP722A Table 8

UAS environmental limitations

Wind speed limits	Max Wind Speed Resistance: 12 m/s
Turbulence restrictions
Precipitation limits
OAT limits	Operating Temperature: -10 Deg. to 40 Deg. C (14 Deg. to 104 Deg. F)
In-flight icing condition limits
Any other relevant information

CAP722A Table 9

Construction

Type of material
Material characteristics or properties
Any other relevant information

CAP722A Table 10

Electrical power system

Batteries:
Battery type, model and manufacturer	Capacity: 5000 mAh Type: Li-ion 4S
Quantity
Arrangement
Generator:
Generator type, model and manufacturer
Specification
Electrical loads	Nominal Voltage: 15.4 V Energy: 77 Wh
Electrical load shedding functionality
Power supply redundancy
Procedures to charge and discharge batteries.
Safety provisions with regards to hazards inherent to high-voltage storage devices:
Procedures in place for safe handling by any person who may come into contact with high-voltage storage devices
Means of identifying high-voltage storage
Safety provisions for any person discovering the UA following an accident.
Procedures and safety provisions to mitigate the risk of battery thermal runaway.
Procedures for monitoring high-voltage storage devices.
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information	Charging Voltage Limit: 17.6 V Charging Temperature: 5 Deg. to 40 Deg. C (41 Deg. to 104 Deg. F) Charging Time: Approx. 96 minutes Use the included data cable of the DJI 65W Portable Charger.

CAP722A Table 11

Propulsion system

Propulsion type
Engines:
Type, model and manufacturer
Propeller type, model and manufacturer
Quantity
Arrangement
Power output
Propeller guards
In-flight restart functionality
Performance monitoring
Health monitoring
Safety features and redundancy in the system that allow maintaining flight after a failure or degradation has occurred in the propulsion system.
Fuel-powered propulsion system – Safety features to mitigate the risk of engine loss when the following hazards occur:
Fuel starvation
Fuel contamination
Failed signal input from the control station
Engine controller failure
Indication to the remote pilot
Electric-powered propulsion system:
Power source and supply management with regards to other systems in the UA
Redundant power sources
Maximum continuous power output of the motor
Maximum peak power output of the motor
Electrical distribution architecture
Electrical load shedding functionality
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 12

Fuel system

Fuel type
Safety provisions with regards to hazardous substances within the fuel system:
List of hazardous substances and their characteristics.
Procedures in place for safe handling of the UA by any person who may come into contact with the hazardous substances.
Means of identifying the hazardous substances.
Safety provisions for any person discovering the UA following an accident.
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 13

Flight Controls system

Design and operation of flight control units, surfaces, actuators, control linkages, etc.
Flight controller:
Type, model and manufacturer
Functions
Flight modes available
Automatic functions:
Take-off and landing
Stabilisation
Autopilot
Return to home
If functions are provided by COTS equipment, provide type, model and manufacturer.
Safety features and redundancy in the system which allow maintaining flight after a failure or degradation of the flight control system, including indication to the remote pilot.
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 14

Navigation

Sensors
Type, model and manufacturer	Global Navigation Satellite System: GPS + Galileo + BeiDou
Quantity
Telemetry links
Method to determine current position.
Method to navigate to intended destination.
Automatic/automated navigation functions
Geo-awareness functions
Containment functions
Safety features and redundancy in the system which allow maintaining flight after a failure or degradation has occurred in the navigation system:
Backup means of navigation
Detection of and response to loss of primary means and secondary means of navigation.
Indication to the remote pilot
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 15

Detect and Avoid (DAA) systems

DAA system functions	Sensing Type: Omnidirectional binocular vision system, supplemented with an infrared sensor at the bottom of the aircraft Forward: Measurement Range: 0.5-20 m Detection Range: 0.5-200 m Effective Sensing Speed: Flight Speed <= 15 m/s FOV: Horizontal 90 Deg., Vertical 103 Deg. Backward: Measurement Range: 0.5-16 m Effective Sensing Speed: Flight Speed <= 12 m/s FOV: Horizontal 90 Deg., Vertical 103 Deg. Lateral: Measurement Range: 0.5-25 m Effective Sensing Speed: Flight Speed <= 15 m/s FOV: Horizontal 90 Deg., Vertical 85 Deg. Upward: Measurement Range: 0.2-10 m Effective Sensing Speed: Flight Speed <= 6 m/s FOV: Front and Back 100 Deg., Left and Right 90 Deg. Downward: Measurement Range: 0.3-18 m Effective Sensing Speed: Flight Speed <= 6 m/s FOV: Front and Back 130 Deg., Left and Right 160 Deg.
Devices used
Technology used
Interface between the DAA system and the flight control computer
Limitations of the DAA system	Operating Environment: Forward, Backward, Left, Right, and Upward: surfaces with discernible patterns and adequate lighting (lux >15) Downward: surfaces with discernible patterns, diffuse reflectivity >20% (e.g. walls, trees, people), and adequate lighting (lux >15)
Evidence of equipment qualification and approval.
DAA event sequence:
Level of automation
Actions required by the remote pilot
Means to verify normal system operation.
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 16

Other avionics systems

Command Unit (CU)

Power sources, supply management and redundancy.
Radio signal:
Determination of the signal strength and health value.
Threshold values which represent a critically degraded signal.
Control handover between two CUs
Safety features to mitigate the risk of inadvertent command activation:
List of critical commands
Mitigation means
Safety features to mitigate the risk of display or HMI lock-up.
Safety features to maintain flight-critical processing when multiple programs are running concurrently.
HMI:
Information indicated to the remote pilot.
Radio signal strength and/or health indication to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information	Max Operating Time: DJI RC-N1 Remote Controller Without charging any mobile device: 6 hours When charging a mobile device: 4 hours Operating Temperature: DJI RC-N1 Remote Controller -10 Deg. to 40 Deg. C (14 Deg. to 104 Deg. F)

CAP722A Table 17

Command an Control (C2) link

RLOS
BRLOS
Antennas:
Type, model and manufacturer
Locations on the UAS
Transceivers / Modems:
Power levels	Transmitter Power (EIRP): DJI RC-N1 Remote Controller 2.400-2.4835 GHz: < 26 dBm (FCC) < 20 dBm (CE/SRRC/MIC) 5.725-5.850 GHz: < 26 dBm (FCC) < 23 dBm (SRRC) < 14 dBm (CE)
Transmission schemes
Operating frequencies
Details of frequency spectrum approvals
Maximum power output/range
Type of signal processing
Datalink margin in terms of the overall link bandwidth at the maximum anticipated distance from the CU.
Operational C2 link management:
Frequency switchovers
Contingency situations
Third party link service provider
Radio signal:
Determination of the signal strength and health value
Threshold values which represent a critically degraded signal.
Minimum and average assured data rates
Minimum and average assured latencies
Design features and procedures to maintain availability, continuity, and integrity of the datalink:
RF or other interference
Flight beyond communications range
Antenna masking
Loss of CU functionality
Loss of UA functionality
Atmospheric attenuation
Safety features to mitigate the risk of loss of C2 link:
C2 links redundancy
Automatic triggering of an emergency recovery function
Automatic return to home
Safety features to mitigate the risk of harmful interference.
HMI:
Information indicated to the remote pilot.
Radio signal strength and/or health indication to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 18

Communications

Antennas:
Type, model and manufacturer
Locations on the UAS
Communication method:
VHF
GSM network
Satellite
Safety features to mitigate the loss of communication function:
Primary communication means
Secondary / back-up communication means
HMI:
Information indicated to the remote pilot.
Radio signal strength and/or health indication to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 19

Take-off and landing mechanisms

Wheels, skids, rails, launchers, etc.
If various mechanisms can be fitted:
Primary mechanism
Secondary mechanisms
Operational conditions/requirements for each mechanism.
Any other relevant information

CAP722A Table 20

Emergency recovery and safety systems

Mode of operation
Safety features which mitigate the risk of loss of control or situational awareness.
Means to verify normal system operation.
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 21

External lighting

Type, model and manufacturer
Locations on the UA
Colour
Operation
Operating modes
Purpose
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 22

Payload

Types
Mass
Interfaces with the UA:
Mechanical interface	Image Sensor: 4/3 CMOS, Effective Pixels: 20 MP
Electrical interface
Data interface
Release mechanism
Any other interface
Procedures to install the payload onto the UA.
Effects of the payload on the UA
Sensors
Safety features to mitigate the risk of the payload affecting the flight of the UA:
Effects on aerodynamics
Effects of electro-magnetic interference.
Effects of electrical power and / or data connection failures on the UAS.
Effects of complete detachment of the payload from the UA (either caused by a failure or through intentional lowering / dropping of the payload).
Effects of partial detachment of the payload from the UA.
Distraction of the remote pilot generated by the payload during flight.
Procedures to verify the attachment points to the UA.
Procedures to verify the UA MTOM and CG location.
Procedures to detect and mitigate any failure of the payload in flight.
Safety provisions with regards to hazards inherent to the payload
Procedures in place for safe handling of the payload.
Means of identifying hazards.
HMI:
Information indicated to the remote pilot.
Alert messages indicated to the remote pilot.
Any other relevant information

CAP722A Table 23

Ground support equipment

UAS launch and recovery systems
Power sources
Transportation equipment
Backup or emergency equipment
Procedures to transport UA, CU, battery/fuel, and other equipment between operation sites and from the loading/off-loading area to the take-off/landing area.
Storage of ground support equipment.
Suitability of the ground support equipment and transportation method with regards to the UAS components’ fragility, sensitivity or inherent hazards.
Ground support equipment standards
Ground support equipment manufacturer's recommendations.
Any other relevant information

CAP722A Table 24

Maintenance

Maintenance manual:
Structure
Maintenance procedures:
Inspections
Overhaul
Repairs
Assurance of repair procedures
Batteries maintenance during storage periods
Origin of each procedure
Maintenance schedules
Procedures to record maintenance that has been carried out.
Storage of maintenance records
Staff qualification and levels of approval.
Procedures to use the manual by the Maintenance staff
Configuration control
Any other relevant information

CAP722A Table 25

Spare parts procurement

Sources of procurement
Process to confirm the suitability of the part.
Any other relevant information

CAP722A Table 26

Change Management and modifications to the system

Hardware, software, and firmware version control
Modification standards
Modification records storage
Safety assessment associated with the modification
Any other relevant information

CAP722A Table 27

Safety features of the UAS

Step 1 – Identify the main functions of the UAS.
Step 2 – Identify the sub-functions.
Step 3 – Consider the ways each function may fail.
Step 4 – Identify the failure conditions.
Step 5 – Select those failure conditions that may lead to mid-air collision or harm to uninvolved people on the ground. (Identified Hazard)
Step 6 – Assurance
Step 7 – Describe the consequence of the failure condition.
Step 8 – Describe the failure modes. (Unmitigated Failures)
Step 9 – Identify the single points of failure.
Step 10 – Describe the risk mitigation means.

CAP722A Table 28

ANNEX - Manufacturer supplied data forDJI Mavic 3 Classic

Aircraft
Takeoff Weight	895 g
Dimensions	Folded (without propellers): 221 x 96.3 x 90.3 mm (L x W x H) Unfolded (without propellers): 347.5 x 283 x 107.7 mm (L x W x H)
Max Ascent Speed	8 m/s
Max Descent Speed	6 m/s
Max Horizontal Speed (at sea level, no wind)	21 m/s No faster than 19 m/s in EU regions.
Max Takeoff Altitude	6000 m
Max Flight Time	46 minutes Measured in a controlled test environment. Specific test conditions are as follows: flying at a constant speed of 32.4 kph in a windless environment at sea level, with APAS off, AirSense off, camera parameters set to 1080p/24fps, video mode off, and from 100% battery level until 0%. Results may vary depending on the environment, actual use, and firmware version.
Max Hovering Time	40 minutes Measured in a controlled test environment. Specific test conditions are as follows: hovering in a windless environment at sea level, with APAS off, AirSense off, camera parameters set to 1080p/24fps, video mode off, and from 100% battery level until 0%. Results may vary depending on environment, actual use, and firmware version.
Max Flight Distance	30 km
Max Wind Speed Resistance	12 m/s
Max Tilt Angle	35 Deg.
Operating Temperature	-10 Deg. to 40 Deg. C (14 Deg. to 104 Deg. F)
Global Navigation Satellite System	GPS + Galileo + BeiDou
Hovering Accuracy Range	Vertical: ±0.1 m (with vision positioning) ±0.5 m (with GNSS positioning) Horizontal: ±0.3 m (with vision positioning) ±0.5 m (with high-precision positioning system)
Internal Storage	8 GB (approx. 7.9GB available space)
Hasselblad Camera
Image Sensor	4/3 CMOS, Effective Pixels: 20 MP
Lens	FOV: 84 Deg. Format Equivalent: 24 mm Aperture: f/2.8-f/11 Focus: 1 m to ∞
ISO Range	Video: Normal, Slow-motion: 100-6400 (normal color) 400-1600 (D-Log) 100-1600 (HLG) Night Mode: 800-12800 (normal color) Photo: 100-6400
Shutter Speed	Electronic Shutter: 8-1/8000 s
Max Image Size	5280 x 3956
Still Photography Modes	Single Shot: 20 MP Burst Shooting: 20 MP, 3/5/7 frames Automatic Exposure Bracketing (AEB): 20 MP, 3/5 frames at 0.7 EV step Timed: 20 MP, 2/3/5/7/10/15/20/30/60 s
Photo Format	JPEG/DNG (RAW)
Video Resolution	H.264/H.265 5.1K: 5120 x 2700@24/25/30/48/50 fps DCI 4K: 4096 x 2160@24/25/30/48/50/60/120* fps 4K: 3840 x 2160@24/25/30/48/50/60/120* fps FHD: 1920 x 1080@24/25/30/48/50/60/120/200 fps * Recording frame rates. The corresponding video plays as slow-motion video.
Video Format	MP4/MOV (MPEG-4 AVC/H.264, HEVC/H.265)
Max Video Bitrate	H.264/H.265: 200 Mbps
Supported File System	exFAT
Color Mode	Normal/HLG/D-Log
Digital Zoom	3 x
Gimbal
Stabilization	3-axis mechanical gimbal (tilt, roll, pan)
Mechanical Range	Tilt: -135 Deg. to 100 Deg. Roll: -45 Deg. to 45 Deg. Pan: -27 Deg. to 27 Deg.
Controllable Range	Tilt: -90 Deg. to 35 Deg. Pan: -5 Deg. to 5 Deg.
Max Control Speed (tilt)	100 Deg./s
Angular Vibration Range	±0.007 Deg.
Sensing
Sensing Type	Omnidirectional binocular vision system, supplemented with an infrared sensor at the bottom of the aircraft
Forward	Measurement Range: 0.5-20 m Detection Range: 0.5-200 m Effective Sensing Speed: Flight Speed <= 15 m/s FOV: Horizontal 90 Deg., Vertical 103 Deg.
Backward	Measurement Range: 0.5-16 m Effective Sensing Speed: Flight Speed <= 12 m/s FOV: Horizontal 90 Deg., Vertical 103 Deg.
Lateral	Measurement Range: 0.5-25 m Effective Sensing Speed: Flight Speed <= 15 m/s FOV: Horizontal 90 Deg., Vertical 85 Deg.
Upward	Measurement Range: 0.2-10 m Effective Sensing Speed: Flight Speed <= 6 m/s FOV: Front and Back 100 Deg., Left and Right 90 Deg.
Downward	Measurement Range: 0.3-18 m Effective Sensing Speed: Flight Speed <= 6 m/s FOV: Front and Back 130 Deg., Left and Right 160 Deg.
Operating Environment	Forward, Backward, Left, Right, and Upward: surfaces with discernible patterns and adequate lighting (lux >15) Downward: surfaces with discernible patterns, diffuse reflectivity >20% (e.g. walls, trees, people), and adequate lighting (lux >15)
Video Transmission
Video Transmission System	O3+
Live View Quality	Remote Controller: 1080p/30fps, 1080p/60fps
Operating Frequency	2.400-2.4835 GHz 5.725-5.850 GHz
Transmission Power (EIRP)	2.400-2.4835 GHz: < 33 dBm (FCC) < 20 dBm (CE/SRRC/MIC) 5.725-5.850 GHz: < 33 dBm (FCC) < 30 dBm (SRRC) < 14 dBm (CE)
Max Transmission Distance (free of interference)	Strong Interference: urban landscape, approx. 1.5-3 km Medium Interference: suburban landscape, approx. 3-9 km Low Interference: suburb/seaside, approx. 9-15 km Data tested under FCC standard in unobstructed environments with typical interference. Used for reference purposes only and provides no guarantee for actual flight distance.
Max Download Speed	O3+: 5.5 MB/s (with DJI RC-N1 Remote Controller) 15 MB/s (with DJI RC Pro) 5.5 MB/s (with DJI RC) Wi-Fi 6: 80 MB/s* * Measured in a laboratory environment with little interference in countries/regions that support both 2.4 GHz and 5.8 GHz, with footage saved to the internal storage. Download speeds may vary depending on the actual conditions.
Lowest Latency	130 ms (with DJI RC-N1 Remote Controller) 120 ms (with DJI RC Pro) 130 ms (with DJI RC) Depending on the actual environment and mobile device.
Antennas	4 antennas, 2T4R
Battery
Capacity	5000 mAh
Weight	335.5 g
Nominal Voltage	15.4 V
Charging Voltage Limit	17.6 V
Type	Li-ion 4S
Energy	77 Wh
Charging Temperature	5 Deg. to 40 Deg. C (41 Deg. to 104 Deg. F)
Charging Time	Approx. 96 minutes Use the included data cable of the DJI 65W Portable Charger.
Charger
Input	100-240 V (AC), 47-63 Hz, 2 A
Output	USB-C: 5 V, 5 A 9 V, 5 A 12 V, 5 A 15 V, 4.3 A 20 V, 3.25 A 5-20 V, 3.25 A USB-A: 5 V, 2 A
Rated Power	65 W
Battery Charging Hub
Input	USB-C: 5-20 V, max 5 A
Output	Battery Port: 12-17.6 V, max. 5 A
Rated Power	DJI Mavic 3 Battery Charging Hub: 65 W DJI Mavic 3 Battery Charging Hub (100W): 100 W
Charging Type	Three batteries charged in sequence
Compatibility	DJI Mavic 3 Intelligent Flight Battery
Car Charger
Input	Car Power Input: 12.7-16 V, 6.5 A, rated voltage 14 V (DC)
Output	USB-C: 5 V, 5 A 9 V, 5 A 12 V, 5 A 15 V, 4.3 A 20 V, 3.25 A 5-20 V, 3.25 A USB-A: 5 V, 2 A
Rated Power	65 W
Charging Temperature	5 Deg. to 40 Deg. C (41 Deg. to 104 Deg. F)
Storage
Recommended microSD Cards	Lexar 1066x 64GB V30 A2 microSDXC Lexar 1066x 128GB V30 A2 microSDXC Lexar 1066x 256GB V30 A2 microSDXC Lexar 1066x 512GB V30 A2 microSDXC SanDisk High Endurance 64GB V30 microSDXC SanDisk High Endurance 128GB V30 microSDXC SanDisk High Endurance 256GB V30 microSDXC Kingston Canvas Go! Plus 64GB V30 A2 microSDXC Kingston Canvas Go! Plus 128GB V30 A2 microSDXC Kingston Canvas Go! Plus 256GB V30 A2 microSDXC Kingston Canvas Go! Plus 512GB V30 A2 microSDXC Samsung EVO Plus 512GB V30 A2 microSDXC Samsung PRO Plus 256GB V30 A2 microSDXC Samsung PRO Plus 512GB V30 A2 microSDXC
Remote Controller
Max Operating Time	DJI RC-N1 Remote Controller Without charging any mobile device: 6 hours When charging a mobile device: 4 hours
Max Supported Mobile Device Size	DJI RC-N1 Remote Controller 180 x 86 x 10 mm (L x W x H)
Operating Temperature	DJI RC-N1 Remote Controller -10 Deg. to 40 Deg. C (14 Deg. to 104 Deg. F)
Transmitter Power (EIRP)	DJI RC-N1 Remote Controller 2.400-2.4835 GHz: < 26 dBm (FCC) < 20 dBm (CE/SRRC/MIC) 5.725-5.850 GHz: < 26 dBm (FCC) < 23 dBm (SRRC) < 14 dBm (CE)

Data source: https://www.dji.com/mavic-3-classic/specs

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Source data acquired 2023-01-23 19:03:42