- Joined
- Aug 24, 2017
- Messages
- 520
- Reaction score
- 281
- Age
- 55
After about 2.5 hours on a P3S I've developed a loud high pitched whistle. It's not the props, I've checked for a hot motor, I can't see any debris in the motors. All the motors spin evenly. I'm afraid I have a bearing problem. Any comments? The video below is not my drone but it makes the exact sound.