We are currently using an APM 2.5 on our large octocopter. We have the APM now tuned perfectly and the octo flies extremely smoothly and accurately.
My partner in the business is the pilot for the octo and he has been flying a DJI phantom for over a year prior to the octo. He has grown to love the DJI "GPS mode" which allows the user to have full control, including 100% rate of speed, of the multirotor and whenever the user has no stick input it will GPS hold that position.
The nearest equivalent flight mode I can find on the APM 2.5 is loiter mode. However, loiter mode on the APM has a couple of significant differences to the DJI GPS mode, those being:
1. when flying in loiter mode with the APM the rate of movement of the craft is significantly reduced, it does not allow 100% throttle/movement speeds, whereas the DJI GPS mode allows 100% movement rates.
2. when flying in loiter mode there is the throttle "deadband" in which the APM will not respond to throttle input (which I believe is +-20%), whereas the DJI GPS mode does not have this limitation, it allows 100% throttle movement with no deadband.
The only other flight mode of the APM would be altitude hold mode however the this simply maintains the altitude and not all GPS position hold.
Our pilot believes the lack of an equivalent flight mode on the APM to the DJI GPS mode is a major disadvantage and limits his ability to fly the octo with the option of 100% movement but with GPS hold. Due to this he is wanting to remove the $180 APM 2.5 and change over to either a $500 DJI V2 flight controller or the $1000 Wookong M.
I have tried to convince him otherwise as I believe, other than the flight characteristic/mode he is after, the APM betters the DJI controllers in every aspect.
My question being...Is there any option on the APM, or anyway I can program it, to allow it to have 100% rate of movement, with no deadband, but with gps hold as soon as the user has no stick input? It would pretty much be equivalent to the current stabilize mode but with GPS hold on no stick input.
Thanks very much,