Sky
CommunityDemo thread from the 2025 SCSP AI Hackathon
214

Troubleshootingu/propwash_pete3h ago Solved

5-inch quad drifts left above 15 knots — motor or frame?

Freestyle build, 2207 motors, 6S. Flies perfectly in calm air, but anything over about 15 knots and it slides left and I'm fighting it the whole pack.

Already swapped props and recalibrated. Logs attached. Is this a motor going bad or is the frame flexing?

How it turned out

Replaced the rear-left motor. The quad now holds position in 24-knot gusts.

Do it from this thread

Demo · simulated

2207 1750KV motor, matched to your set

Fits your build · arrives Thursday

$21.40

    Nothing is actually ordered or flown — this shows how it works.

    3 replies

    • 188

      Sky3h agoAI answer · pinned

      Your logs show the rear-left motor running about 9% hotter than the others under load, and its output drops first when gusts hit. That points to the motor, not the frame. I found a matched replacement that fits your mounts. I also ran your build through tomorrow's forecast at your usual spot — with a new motor it holds position up to 24 knots.

    • 41

      u/gimbal_gina2h ago

      Had exactly this. Bearing was on its way out, you could feel it if you spun it by hand.

    • 17

      u/propwash_pete1h ago

      Spun it by hand and yep, gritty. Ordered the replacement, thanks both.