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HelicopterMain Discussion › No tail rotor helicopter
12-20-2013 08:25 PM  3 years agoPost 1
Brokenlink

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Oakdale

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Watch at YouTube

Jamie Griffith

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12-20-2013 08:39 PM  3 years agoPost 2
Retired2011

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Lee's Summit, MO

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Pretty cool stuff!

Chet

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12-20-2013 09:11 PM  3 years agoPost 3
Mikerobe

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Green Turtle​Cay,Abaco, Bahamas.

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The Hughes 500 Notar with it's tail boom and "can" is understandable, but this thing with it's vectoring so close to midship is not! Must be quite an air volume being displaced!

The lot I got is not a lot, but I thank God a lot for the lot I got!

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12-20-2013 09:18 PM  3 years agoPost 4
wrongler

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Brewerton, New York

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I see a new Rc heli in the works!

Bill Whittaker

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12-20-2013 09:29 PM  3 years agoPost 5
ssmith512

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Indianapolis, IN USA

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Must be quite an air volume being displaced!
Not much really. This heli uses a torque-less drive system. Zero torque from the main rotor.

Steve

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12-20-2013 09:39 PM  3 years agoPost 6
JKos

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Redondo Beach, CA

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Yep, it uses compressed air which exits at the ends of the blades to drive the rotor. Therefore, no torque is produced. The "rudder" you see deflects the engine exhaust to create yaw forces.

As their own website says, not a new idea, but technology has progressed and they believe it is now time for it to really work well.

http://pegasusheli.co.uk

- John

RR rules!

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12-20-2013 09:40 PM  3 years agoPost 7
Glenn Goodlett

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California

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Pressure jet on the head. Engine blows air through a hollow hub and drives the blades. Engine exhaust is deflected to control yaw. I just Googled the N number.

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12-20-2013 09:42 PM  3 years agoPost 8
wrongler

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Brewerton, New York

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Must have one heck of a compressor!

Bill Whittaker

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12-20-2013 11:30 PM  3 years agoPost 9
Retired2011

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Lee's Summit, MO

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Must have one heck of a compressor!
I'll say!
Maybe a turbine running a screw compressor.
Hard to imagine a recip. keeping up with the airflow necessary for that.

Chet

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12-21-2013 01:03 AM  3 years agoPost 10
icanfly

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ontario

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A turbo charger for blade air compress, crazy cool and probably lighter but never going to see the thing 3d,lol.

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12-21-2013 07:05 AM  3 years agoPost 11
Héli Suisse

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Geneva Switzerland

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This idea is not new at all. Already in the mid 50's the French Sud Ouest Aviation Industry developped the Djinn helicopter. Gas from the turbine were ducted through the blades to the tip to produce thrust and rotate the blades. http://www.heli-archive.ch/en/helic.../so-1221-djinn/
I've even seen a RC model from scratch flying at Divonne France reproducing that system!

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12-22-2013 02:57 AM  3 years agoPost 12
zoro

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Cairns

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Wonder how it would perform in a autorotation?

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12-22-2013 09:15 AM  3 years agoPost 13
Héli Suisse

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Geneva Switzerland

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Wonder how it would perform in a autorotation?
The abovementioned Djinn performed very well for the blades were quite heavy to duct the gas to the tip. The mass and thus inertia of the rotor helped quite a lot in performing efficient landing escape manoevers before touch down.

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