First flight after rebuild (due to tree jumping in way of 3DR Quad) I had a prop break off early in flight. I tightened the props very tight and not sure that I didn't over tighten. I was using Turnigy 1147 slow flyer props from HobbyKing - anyone have any thoughts about the quality of these props? Here's the video. I'm wondering if I should stick with the 3DR props?
Looks like I'll have to replace the arm and maybe the motor.
Post crash examination shows second prop cracked in three places and third prop with a possible crack under the spinner. I think I should trash these three and start again. Meanwhile motor on arm that hit is a little tight - got some dirt in it - any suggestions on how to make sure i get it all out?