My Turnigy SK3 has now run aground a few times. After the first couple, I noted a new high-pitch noise when it ran. It didn't really concern me, so I went out and flew on it a few more times. Being that I'm new to the hobby, it hit the ground a couple more times, the last one was a full-on lawn-dart. There's a bit of dirt inside the bell and doesn't really move as freely anymore.
So, what sort of maintenance do I need to do, or what do I need to watch for?
LAWN-DART!
So, what sort of maintenance do I need to do, or what do I need to watch for?

LAWN-DART!