After flying today and doing some hedge trimming with my bird, I decided to do some detailed cleaning, the green didn't go well with the Phantom white. When I took the props off I noticed on the two rear motors and props a reddish-brown residue in the splines and inside the prop hubs. Has anyone else seen this before or know what this is? I'm thinking may grease from inside the motor coming out but I've never seen this before.
It's not from my gardening excursion, the front props were doing all the work there and their hubs and motors were clean.
It's not from my gardening excursion, the front props were doing all the work there and their hubs and motors were clean.