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  1. C

    Props and max rpm

    Helloo! I've recently had a look at some new propellers, especially the Aeronaut CamCarbon light 10x4.5 ones. The problem is now, that Aeronaut gives a max rpm of 15000rpm. I have the Tiger Air 2212 920kv motors, which, o wonder of math, would spin at 920x16.8 at 15456rpm. But ecalc gives a...
  2. C

    As the topic says: What went wrong?

    Hello, I build my first quadcopter a few weeks ago and also flew it perfectly fine a few times. But recently a crash made me think "Why the **** did it crash?o_O To describe the situation: I was flying on an empty parking place about 3 min when suddenly the quadcopter stopped the motors...
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