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Took off and P3P acted drunk

Discussion in 'Pro/Adv Discussion' started by taiguy, Dec 4, 2015.

  1. taiguy

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    I had just flown on one battery and drained it down to 30%. The flight and landing went smoothly. After I swapped in the 2nd (fresh) battery, and the aircraft "warmed up" again, I tried taking off but immediately something felt off. It didn't rise quickly and with authority like it usually does. The controls felt "soft" for lack of a better word. It wasn't stable in the air and when I tried bringing it back down to land it (It was maybe 8 feet off the ground and 10 feet away) it wouldn't land cleanly either. It ended up tilting sideways and the props were spinning against a column.

    Holding down on the throttle stick didn't kill the power right away as it usually does. I had to wait through 10 seconds of props grinding on concrete before it would shut off. I'm going to toss the props since they've been beat up a bit (and they were the slick looking black carbon fiber reinforced props!), but this behavior is worrisome. I have no idea what caused it or what might cause it to happen again.

    I was flying in the same exact space as the flight before, nothing changed except swapping out a battery.
     
  2. Oso

    Oso

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    Location:
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    Was it in GPS mode before you took off or still in ATTI mode?

    Also, if I were in that situation it would be one of the rare times I would use the CSC to stop the motors instantly.
     
  3. taiguy

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    GPS with 17 satellites. It was really bizarre.... shook me up for a bit but swapped on the original props and had another good flight afterwards that day.