Hi Group
I've been flying my P3A for a few hours - so far so good. Had a couple of issues today, they might be related:
1) With aircraft on ground before first flight and props spinning, height on Pilot app shows -0.6 m, rather than 0. This was with 10 + satellites shown on the GPS signal.
While slowly ascending height decreases - so I saw -1.0 m about 1 m above ground. Height went through zero and displayed around +1 m when I estimate aircraft was 2 m above ground level.
This happened from first flight and did not change when stopping motors. I did not power off/power on the aircraft.
Similar issue with distance on Pilot app - showed about 1 m when at home point, rather than 0.
I have seen posts on the P2 mentioning the barometer displays height.
Can anyone confirm the height on the P3 is from the GPS, rather than an internal barometer?
Any idea on the GPS update rate in the P3A?
If I stop the motors, does this reset the Home position, or do I need to power off/power on?
2) (and probably my fault) Low voltage alarm came on and I was probably too slow landing, trying to get closer to me. At about 1 m from me and 1 m estimated height, critical battery alarm came on and aircraft rapidly rose. I assume this was the RTH kicking in. Aircraft then hovered about 10 m above ground, I had no control of altitude by Controller. Continued trying to regain control of height. Aircraft rapidly descended (I assume under RTH control). I applied some "up" on the Controller which slowed descent, but aircraft hit ground.
I accept this was my fault - but to try and learn from this experience should the Controller override the RTH?
Maybe related to 1) above, does RTH descend and land under "height" control, so the aircraft stops motors when at zero height, or does the VPS take over? Or does it hover above the home point waiting for a controlled land.
I want to understand more about how RTH works before trying it out.
Firmware on aircraft and controller updated 2 weeks ago. Using Pilot app on iPad mini 2 running iOS8.4
Thanks in advance for your help
Stuart
I've been flying my P3A for a few hours - so far so good. Had a couple of issues today, they might be related:
1) With aircraft on ground before first flight and props spinning, height on Pilot app shows -0.6 m, rather than 0. This was with 10 + satellites shown on the GPS signal.
While slowly ascending height decreases - so I saw -1.0 m about 1 m above ground. Height went through zero and displayed around +1 m when I estimate aircraft was 2 m above ground level.
This happened from first flight and did not change when stopping motors. I did not power off/power on the aircraft.
Similar issue with distance on Pilot app - showed about 1 m when at home point, rather than 0.
I have seen posts on the P2 mentioning the barometer displays height.
Can anyone confirm the height on the P3 is from the GPS, rather than an internal barometer?
Any idea on the GPS update rate in the P3A?
If I stop the motors, does this reset the Home position, or do I need to power off/power on?
2) (and probably my fault) Low voltage alarm came on and I was probably too slow landing, trying to get closer to me. At about 1 m from me and 1 m estimated height, critical battery alarm came on and aircraft rapidly rose. I assume this was the RTH kicking in. Aircraft then hovered about 10 m above ground, I had no control of altitude by Controller. Continued trying to regain control of height. Aircraft rapidly descended (I assume under RTH control). I applied some "up" on the Controller which slowed descent, but aircraft hit ground.
I accept this was my fault - but to try and learn from this experience should the Controller override the RTH?
Maybe related to 1) above, does RTH descend and land under "height" control, so the aircraft stops motors when at zero height, or does the VPS take over? Or does it hover above the home point waiting for a controlled land.
I want to understand more about how RTH works before trying it out.
Firmware on aircraft and controller updated 2 weeks ago. Using Pilot app on iPad mini 2 running iOS8.4
Thanks in advance for your help
Stuart