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

Avata 2

UAS design & manufaturing organisations

DJI

UAS physical characteristics

Empty Mass

Maximum Take-Off Mass (MTOM)

Takeoff Weight:
Approx. 377 g

Dimensions for Rotorcraft / Multirotor

Length of aircraft body

Dimensions:
185 x 212 x 64 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):
8 m/s (Normal mode)
‌16 m/s (Sport mode)
27 m/s (Manual mode)*

* No faster than 19 m/s with the Manual mode in the EU regions.

Minimum airspeed to maintain safe flight

Normal/typical operating height

Max Takeoff Altitude:
5000 m

Measured in a windless environment when taking off from an altitude of 5000 m and ascending vertically by 500 m, using Sport mode, and from 100% battery level until 20%. Data is for reference only. Always pay attention to reminders on the goggles' screens during your flight.

Maximum operating height

Maximum flight time during normal operation

Max Flight Time:
‌Approx. 23 mins

‌Measured when flying forward at a speed of 21.6 kph in a windless environment at sea level, with camera parameters set to 1080p/30fps, video mode off, and from 100% battery level until 0%. Data is for reference only. Always pay attention to reminders on the goggles' screens during your flight.

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:
13.0 km‌

‌Measured when flying forward at a speed of 43.2 kph in a windless environment at sea level, with camera parameters set to 1080p/30fps, video mode off, and from 100% battery level until 0%. Data is for reference only. Always pay attention to reminders on the goggles' screens during your flight.

Glide distances

Maximum radio range of the C2 Link

CAP722A Table 8

UAS environmental limitations

Wind speed limits

Max Wind Speed Resistance:
10.7 m/s (Level 5)

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[1]:
2150 mAh

Battery Type:
Li-ion

Quantity

Arrangement

Generator:

Generator type, model and manufacturer

Specification

Electrical loads

Energy:
31.7 Wh@0.5C

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 Time:
With Charging Hub (60W max charging power):
From 0 to 100%: approx. 45 min‌
From 10 to 90%: approx. 30 min‌‌

Directly Charging the Drone (30 W max charging power):‌
From 0 to 100%: approx. 88 min‌
From 10 to 90%: approx. 60 min‌‌‌‌

Charging Temperature:
5 Deg. to 40 Deg. C (41 Deg. to 104 Deg. F)

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:
Downward and backward visual positioning

Backward:
Measurement Range: 0.5-20 m
FOV: Horizontal 78 Deg., Vertical 78 Deg.

Downward:
ToF Effective Measurement Height: 10 m
Precise Hovering Range: 0.3-10 m
Measurement Range: 0.3-20 m
FOV: Horizontal 78 Deg., Vertical 78 Deg.

Devices used

Technology used

Interface between the DAA system and the flight control computer

Limitations of the DAA system

Operating Environment:
Diffuse reflective surfaces with discernible patterns, diffuse reflectivity > 20% (such as concrete pavement)
Adequate lighting (lux > 15, normal indoor lighting conditions)

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

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):
2.4 GHz:
<20 dBm (FCC/CE/SRRC/MIC)

5.8 GHz:
<20 dBm (FCC/SRRC)
< 14 dBm (CE)

Transmitter Power (EIRP):
<10 dBm

Transmission schemes

Protocol:
802.11a/b/g/n/ac

Operating frequencies

Details of frequency spectrum approvals

Operating Frequency[1]:
2.400-2.4835 GHz
5.725-5.850 GHz

Operating Frequency:
2.400-2.4835 GHz

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

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

Image Sensor:
‌1/1.3-inch image sensor
Effective Pixels: 12 MP

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 Avata 2

Aircraft

Takeoff WeightApprox. 377 g
Dimensions185 x 212 x 64 mm (L x W x H)
Max Ascent Speed‌6 m/s (Normal mode)
9 m/s (Sport mode)
Max Descent Speed‌6 m/s (Normal mode)
9 m/s (Sport mode)
Max Horizontal Speed (at sea level, no wind)8 m/s (Normal mode)
‌16 m/s (Sport mode)
27 m/s (Manual mode)*

* No faster than 19 m/s with the Manual mode in the EU regions.
Max Takeoff Altitude5000 m

Measured in a windless environment when taking off from an altitude of 5000 m and ascending vertically by 500 m, using Sport mode, and from 100% battery level until 20%. Data is for reference only. Always pay attention to reminders on the goggles' screens during your flight.
Max Flight Time‌Approx. 23 mins

‌Measured when flying forward at a speed of 21.6 kph in a windless environment at sea level, with camera parameters set to 1080p/30fps, video mode off, and from 100% battery level until 0%. Data is for reference only. Always pay attention to reminders on the goggles' screens during your flight.
Max Hovering Time‌Approx. 21 mins

‌‌Measured when hovering in a windless environment at sea level, with camera parameters set to 1080p/30fps, video mode off, and from 100% battery level until 0%. Data is for reference only. Always pay attention to reminders on the goggles' screens during your flight.‌
Max Flight Distance13.0 km‌

‌Measured when flying forward at a speed of 43.2 kph in a windless environment at sea level, with camera parameters set to 1080p/30fps, video mode off, and from 100% battery level until 0%. Data is for reference only. Always pay attention to reminders on the goggles' screens during your flight.
Max Wind Speed Resistance10.7 m/s (Level 5)
Operating Temperature-10 Deg. to 40 Deg. C (14 Deg. to 104 Deg. F)
Global Navigation Satellite SystemGPS + Galileo + BeiDou
Hovering Accuracy RangeVertical:
±0.1 m (with vision positioning)
±0.5 m (with GNSS positioning)

Horizontal:
±0.3 m (with vision positioning)
±1.5 m (with GNSS positioning)
Internal Storage46 GB

Camera

Image Sensor‌1/1.3-inch image sensor
Effective Pixels: 12 MP
Lens‌FOV: 155 Deg.
Format Equivalent: 12 mm
Aperture: f/2.8
Focus: 0.6 m to ∞
ISO Range100-25600 (Auto)
100-25600 (Manual)
Shutter SpeedVideo: 1/8000-1/30 s
Photo: 1/8000-1/50 s
Max Image Size4000 x 2256 (16∶9)
4000 x 3000 (4∶3)
Still Photography ModeSingle shot
Photo FormatJPEG
Video Resolution4K (4∶3): 3840 x 2880@30/50/60fps
4K (16∶9): 3840 x 2160@30/50/60fps
2.7K (4∶3): 2688 x 2016@30/50/60fps
2.7K (16∶9): 2688 x 1512@30/50/120fps
1080p (4∶3): 1440 x 1080@30/50/120fps
1080p (16∶9): 1920 x 1080@30/50/120fps
Video FormatMP4 (H.264/H.265)
Max Video Bitrate130 Mbps
Supported File SystemexFAT
Color ModeStandard
D-Log M
Camera FOVSupports normal mode, wide-angle mode, and ultra-wide-angle mode.
EISSupports RockSteady 3.0+ and HorizonSteady
Can be disabled*

* When stabilization is turned off, footage captured with the wide-angle view supports offline stabilization Gyroflow.

Gimbal

StabilizationSingle-axis mechanical gimbal (tilt)
Mechanical RangeTilt: -95 Deg. to 90 Deg.
Controllable RangeTilt: -85 Deg. to 80 Deg.
Max Control Speed (tilt)100 Deg./s
Angular Vibration Range±0.01 Deg.
Electronic Roll AxisReal-time screen correction is unavailable during recording, but can be applied to the footage recorded on the drone.

Sensing

Sensing TypeDownward and backward visual positioning
DownwardToF Effective Measurement Height: 10 m
Precise Hovering Range: 0.3-10 m
Measurement Range: 0.3-20 m
FOV: Horizontal 78 Deg., Vertical 78 Deg.
BackwardMeasurement Range: 0.5-20 m
FOV: Horizontal 78 Deg., Vertical 78 Deg.
Operating EnvironmentDiffuse reflective surfaces with discernible patterns, diffuse reflectivity > 20% (such as concrete pavement)
Adequate lighting (lux > 15, normal indoor lighting conditions)

Video Transmission

Video Transmission SystemO4
Live View Quality1080p@30/50/60/100fps
Operating Frequency2.400-2.4835 GHz
5.170-5.250 GHz*
5.725-5.850 GHz*

* 5.170-5.250 GHz and 5.725-5.850 GHz can be used only in countries and regions where permitted by local laws and regulations.
Transmitter Power (EIRP)2.4 GHz:
<33 dBm (FCC)
<20 dBm (CE/SRRC/MIC)

5.1 GHz:
< 23 dBm (CE)

5.8 GHz:
<33 dBm (FCC)
<30 dBm (SRRC)
< 14 dBm (CE)
Communication BandwidthMax 60 MHz
Max Transmission Distance (free of interference)Low Interference and Obstructed by Buildings: approx. 0-0.5 km
Low Interference and Obstructed by Trees: approx.
0.5-3 km

Data tested under FCC standard in environments with typical low interference. Used for reference purposes only and provides no guarantee for actual transmission distance.
Max Download SpeedWi-Fi: 30 MB/s*

* Measured in a laboratory environment with little interference in countries/regions that support both 2.4 GHz and 5.8 GHz. Download speeds may vary depending on the actual conditions.
Lowest LatencyWith DJI Goggles 3:
1080p/100fps Video Transmission Quality: 24 ms
1080p/60fps Video Transmission Quality: 40 ms‌
Max Video Bitrate60Mbps
Antennas4 antennas, 2T4R

Wi-Fi

Protocol802.11a/b/g/n/ac
Operating Frequency[1]2.400-2.4835 GHz
5.725-5.850 GHz
Transmitter Power (EIRP)2.4 GHz:
<20 dBm (FCC/CE/SRRC/MIC)

5.8 GHz:
<20 dBm (FCC/SRRC)
< 14 dBm (CE)

Bluetooth

ProtocolBluetooth 5.0
Operating Frequency2.400-2.4835 GHz
Transmitter Power (EIRP)<10 dBm

Intelligent Flight Battery

Capacity[1]2150 mAh
WeightApprox. 145 g
Standard Voltage14.76 V
Max Charging Voltage17 V
Battery TypeLi-ion
Energy31.7 Wh@0.5C
Charging Temperature5 Deg. to 40 Deg. C (41 Deg. to 104 Deg. F)
Charging TimeWith Charging Hub (60W max charging power):
From 0 to 100%: approx. 45 min‌
From 10 to 90%: approx. 30 min‌‌

Directly Charging the Drone (30 W max charging power):‌
From 0 to 100%: approx. 88 min‌
From 10 to 90%: approx. 60 min‌‌‌‌

Charger

Recommended ChargerDJI 65W Portable Charger
DJI 65W Car Charger
USB Power Delivery charger

Battery Charging Hub

Input5-20 V, max 3 A
Output5 V, 2 A
Charging TypeThree batteries charged in sequence.
CompatibilityDJI Avata 2 Intelligent Flight Battery

Storage

Recommended microSD CardsSanDisk Extreme PRO 32GB U3 A1 V30 microSDHC
Lexar Professional 1066x 64GB U3 A2 V30 microSDXC
Lexar Professional 1066x 128GB U3 A2 V30 microSDXC
Lexar Professional 1066x 256GB U3 A2 V30 microSDXC
Lexar Professional 1066x 512GB U3 A2 V30 microSDXC
Kingston CANVAS Go! Plus 64GB U3 A2 V30 microSDXC
Kingston CANVAS Go! Plus 128GB U3 A2 V30 microSDXC
Kingston CANVAS React Plus 64GB U3 A1 V90 microSDXC
Kingston CANVAS React Plus 128GB U3 A1 V90 microSDXC
Kingston CANVAS React Plus 256GB U3 A1 V90 microSDXC
Samsung EVO Plus 512GB U3 A2 V30 microSDXC

DJI FPV Remote Controller 3

Max Operating TimeApprox. 10 hours
Operating Temperature-10 Deg. to 40 Deg. C (14 Deg. to 104 Deg. F)
Charging Temperature0 Deg. to 50 Deg. C (32 Deg. to 122 Deg. F)
Charging Time2 hours
Charging Type5 V, 2 A
Battery Capacity2600 mAh
WeightApprox. 240 g
Dimensions165 x 119 x 62 mm (L x W x H)
Operating Frequency2.400-2.4835 GHz
Transmitter Power (EIRP)2.400 GHz:
<26 dBm (FCC)
<20 dBm (CE/SRRC/MIC)

Others

Guaranteed software updates until2026/12/31

Data source: https://www.dji.com/avata-2/specs

Generated using dronespec.info
Source data acquired 2024-04-26 11:03:42