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©
2022 DJI All Rights Reserved.
49
AGRAS T40/T20 P
Unmanned Aircraft Flight Manual
The aircraft sprays automatically when ying from Point A to Point B.
Points A and B cannot be recorded if the spray tank is empty or the ying speed of the aircraft
is higher than 0.4 m/s.
Make sure to record Point A before Point B, and that the distance between Point A and B is
more than 1 m.
Users cannot adjust the position of Point A or B after they have been recorded. Start a new A-B
Route operation if adjustment of Point A or B is required.
For optimal performance, it is recommended to keep the direction of Point A to B parallel to
one side of the polygonal spray area.
4. Adjust angle for Point A and B
After Point A or B is recorded, tap Adjust A or B Heading onscreen, and move the yaw stick on the
remote controller. The heading of the aircraft corresponds to the heading for Point A or B that is
indicated by a dotted line on the screen. Tap Adjust A or B Heading again to set the current heading
for Point A or B. There are angle limits for adjusting the heading for Point A or B. Take note of any
prompts in the app when operating.
The heading for Point A or B cannot be set when the rotating speed of the aircraft’s heading is
higher than 15°/s.
5. Select the Route
After Point A and B are recorded, the app produces Route R or Route R’ by default. Tap
to switch
to Route L or Route L’.
6. Performing an Operation
Tap
and move the slider to start the operation.
Users can adjust the spray amount, flight speed and height above the vegetation during
operation while the line spacing cannot be adjusted.
Users cannot control the aircraft heading via the control stick during the operation.
When using the control sticks to control the aircraft in A-B Route operation mode, the aircraft
automatically switches to Manual operation mode, completes the corresponding flight
behavior, and then hovers. To resume the operation, tap Resume onscreen. The aircraft
resumes ying along the operation route. Refer to Operation Resumption for more information.
Even though the heading of the aircraft cannot be adjusted, use the control sticks to avoid
obstacles if the obstacle avoidance function of the radar module is disabled. Refer to Manual
Obstacle Avoidance for more information.
During the operation, the aircraft does not spray liquid while ying along the route parallel to
the line from A to B, but automatically sprays liquid while ying along the other parts of the
route.
Manual Operation Mode
Tap the mode switch button on the upper left in the app and select M to enter Manual operation mode.
In this mode, you can control all the movements of the aircraft, spray liquid via the spray button of the
remote controller, and adjust the spray rate via the dial. Refer to Controlling the Spraying System for
more information. Manual operation mode is ideal when the operating area is small.
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