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Single Rotor Blade Helicopter. (Experiment)

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Uploaded by on Oct 25, 2010

*Please read before commenting* This "Proof of Concept" is tested by using a full lifting, powered rotor head. This is not an autogiro. I have been informed that others have tried this in other countries but I did my own design on my own. Kudos to those who have done this already.
"He who dares nothing, need not expect anything" is my motto.
Since making a video 3 days ago on Single Bladed Props for airplanes, I have been asked if the theory could be applied to helicopters.
I guessed yes, but needed to find out for sure.

The theory says "one blade causes some turbulence that is encountered by the other blade. Remove the one blade and make the single one a bit longer. It will use less power and be quieter.
Using my Kyosho Hyperfly Apache as a test bed, I have come up with a flying machine that is quieter, uses less power, and is just as maneuverable, if not more than the stock setup. On top of that, it has no tail rotor to boot!

I have submitted the concept to my patent attorney to see if a missing blade constitutes warranting a patent, but I doubt it. So you may find more and more 1 bladed flying machines come into being after this proof of concept video gets analyzed.
If so, great, for that is what drives us all to succeed, however.
I think the reason a lot of our equipment is manufactured overseas, is because people here are afraid to try stuff, fearing danger or failure based on guesswork.
But for me, I will try anything, no matter how wild, win or lose and will present the truth.
Also Note, I tried it on the Blade MSR first, having to use a bigger blade as per theory, and of course bigger counterweight.
It flew very low in ground effect, but no higher, as the counterweight for the bigger rotor blade, exceeded the power of that tiny heli.
So for that reason, I had to use a bigger heli that was capable of more lift. I decided the 1-2/3 lb. NOTAR Hyperfly would be a good choice, as it flies without a tail rotor and adds to the mystique.
And believe me, as the designer, it flies better than it ever did.

Definition of a helicopter on the Web:
* an aircraft without wings that obtains its lift from the rotation of overhead blades
wordnetweb.princeton.edu/perl/webwn

Stay tuned for more experiments like this and thanks kindly for all your support and subscriptions.

Best Regards,
Dave Herbert
Academy of Model Aeronautics # 8221
Contest Director, Leader Member, Scientific.

Here are a few links.

NitroPlanes
http://www.jdoqocy.com/click-3235026-...

AfterDark LEDs
http://www.afterdarkled.com

Xheli
http://www.dpbolvw.net/click-3235026-...

HobbyPartz
http://www.hobbypartz.com

Academy of Model Aeronautics (AMA)
http://www.modelaircraft.org

Disney Toy Store
http://www.dpbolvw.net/d7108p-85-7NRQ...

WillyGoat Toy store
http://www.tkqlhce.com/click-3235026-...

RC-Television
http://www.rc-television.org

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Uploader Comments (NightFlyyer)

  • Could you make the counterweight lighter by moving it farther away from the center? Maybe this could work with the MSR. Maybe it would save even more energy?

  • @Ispintechno1 The further you move it away, the heavier it will get.

  • I don't see the tail rotor !

    :o)

  • @Alexvideoclip There is none

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All Comments (244)

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  • @NightFlyyer I think he means that by moving the weight away from the center of the blades the overal mass of the counterweight could be reduced therefore making a lighter heli.

  • haha f**k realty

  • @NightFlyyer Sorry this is not correct. The further out the counterweight is moved, the more centripetal force it creates because it is moving at a faster speed. Therefore yes, a lighter counterweight can be moved outward to balance.

  • WOW!!! but i think it can't hover no? I think it needs some speed to control the wind with the tail wing, or am I wrong?. Great video... its fun I study phisics and I was thinkin that you were wrong until I saw this video... great!

  • Great video. Love the experiments. I've often thought that if a maple seed can fly with one blade, why not a helicopter. What I don't understand is how it can steer without tail rotor. Anyone care to explain? Much obliged.

  • i domt get it ... how does it work without rudder

  • holy shit

  • to my knowledge this wouldnt work full scale the vibration would be intence not because of mass imbalance but due to asymmetric blade effect and that the rotor blade is producing a lot of of center lift this is usually dampened by the opposing rotor to some degree but as speed increases this usually decreases creating a larger off balance in thrust as the into wind rotor has a higher speed than the downwind blade

  • Awesome Dave just Awesome.

  • When I think of all the half broken props and blades I have tossed in the bin...ARGHHHH

    really nice work. Very cool!

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