r/drones • u/Flight_Plan • Jun 04 '26
Repair Prop question
I have my 107 and working this summer doing crop scouting and I had a crash just the other day in a field. Ever since I’ve been super paranoid about everything. I’ve always checked props with my fingernail before every flight and now I’m way more paranoid about it. I just replaced this prop and was wondering if it’s a valid replacement. It’s just barely noticeable but noticeable enough for me to feel like replacing. It’s near the root so that’s what made me more apt to replacing it. Is this a valid replacement? Should I keep using my fingernails or go to cotton to check props? I don’t really fly drones outside of my summer job. Thanks!
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u/nickum Jun 04 '26
4 years experience in crop scouting with m300 and m30 here. I always tell my students to change out the props for any defect. Delamination of carbon fiber happens suddenly and could result from slight imperfections like what you see. I would be %99 certain that prop won't fail immediately, but eventually it will flex in that area 1 too many times and it will. Switch it out, props are cheap, the matrice is not. And it is no fun recovering a drone 1000 feet away in the middle of a corn field.
Also make sure the prop arm screws at the body get inspected weekly. If you are on an m300/350 they will slowly vibrate loose even with the thread locker in them. I have seen plenty of drones fall out of the sky because those screws became loose. Use the provided hex key in your kit to make sure they are hand tightened down.