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Speed settings in MPH for P4P

When adjusting the speed settings between slow and fast, there are 5 set spots within that range: Slow on the left, 3 spots in the middle, and fast on the right, looking something like this: Slow      *          *          *          Fast

For the Phantom 4 Pro, do we know the actual speeds of these 5 speed settings, in MPH, fps, mps, etc…?

Thank you,

Joshua

Hi Joshua,

The drone speed during the acquisition is calculated and set depending on your flight parameters (overlap, flight height).
The speed the drone will fly is displayed when tapping START before going to the takeoff checklist.

For the P4P, the minimum speed corresponding to Slow is 2 m/s and the maximum corresponding to Fast is 15 m/s.

Then the 3 intervals in between are evenly split between 2m/s and 15 m/s meaning that the speeds will be as follow:
2  -  5.2  -  8.5  -  11.8  -  15  (m/s)
6.6  -  17.2  -  27.9  -  38.5  -  49.2  (ft/s)

As an example, if the drone speed calculation of your flight is 25ft/s, setting up the speed sliders in the middle (27.9 ft/s) will have no impact. However, if you set it to the second interval after slow (17.2 m/s) then your drone will actually fly at 17.2 ft/s instead of 25 ft/s.

Note that those speed intervals calculations depend on the drone and it will not always be the same. Also, we recommend setting the speed sliders to Fast except for few cases where the pictures sharpness is not satisfying because of the drone speed, for example when flying at low altitude.

Best,

I noticed yesterday when i flew a job with pix4d capture and my dji M210 set to the fastest speed on the cendence controller it was telling me my speed was 5.6m/s. this seems awfully slow for the fastest speed setting.

Hi Joshua,

As explained above The drone speed during the acquisition is calculated and set depending on your flight parameters (overlap, flight height). on iOS, the drone speed will fly is displayed when tapping START before going to the takeoff checklist.

In most of the cases, the speed is set between 2 and 8 m/s. 5.6 m/s is then ok even if it seems slow in comparison with the max speed. Keep in mind that the drone speed is part of a whole calculation so that the overlap you set is respected in accordance with the camera features and flight height.

To get a higher speed, you can play on the overlap or the flight height, then it will depend on the accuracy you would like for the project. (GSD will change with the flight height).

Best,