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RC Quad Helicopter Crash 2

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Uploaded by on Oct 20, 2007

Quadrocopter test flight and crash.
Weight: 1.3kg
Motors: Hacker KA20-22L
ESCs: TowerPro 25A
Frame: homemade from R-Rex tail booms
Board: UAVP v3.13

Category:

Autos & Vehicles

Tags:

License:

Standard YouTube License

  • likes, 11 dislikes

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Uploader Comments (nikivan)

  • how can the onboard controller controll the propeller rpm so fast , 300 times per second, .. the motors has to brake kinda of to response, it is not enought to throttle up and down fast 300 times a second.. there must be a brake that brakes or diminsh the speed of the motor very suddenly right? I never had any quad

  • Keep in mind the RPM has to change by small percentage, perhaps +-5% to have the craft leveled. We are not talking here about complete stop and back to full RPM. The props are only 8 grams, so they carry very little kinetic energy and the air resistance slows them down very rapidly. I've seen videos on the net where props are 'singing' driven by specially programmed ESCs. So it is possible.

  • it looks home made , is it?????????

  • Yes, it is :)

  • Is that a CD spindle cover for the dome? Is the red flag the nose or tail?

  • Yes, CD box :) The red flag is the nose.

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All Comments (39)

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  • give me al the information you can give

  • Regardless of their maker (Company or homemade) Quadroters are always massively impressive (When they're flying, not when they're smashing into the ground :p )

  • What the douche, a UFO. CALL NASA

    No just kidding. You did a great job making that Quadrocopter. Good skills flying it as well. I hope it didn't cost you too much to repair.

  • What is that awful high piched noise!!!!

  • you would know! ha!

  • its kind of gay looking....

  • by singing you mean "braking"?

  • Very good for sure!

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