Broken Prop - Prop Tightening

Hi

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.

Crash Vid

Fred

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Replies

  • 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?

    Thanks,

    Fred

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