WW2 German Doblhoff Jet tip Helicopter

A quick glimpse of the first test flights of the V2 version of Doblhoff's jet tip powered Helicopter,
constructed at the Wiener Neustadter Flugzeugwerke.

It was the world's first helicopter to employ jet propulsion.
The WNF-342 V2 seen here in operation flew successfully in 1943.
It weighed approx 450 kg.

By sending out jets of compressed air from the rotor tips to spin the rotors, there is no torque and thus no need for a second anti torque rotor.
A conventional piston engine drove a supercharger compressor to pump air, which was mixed with fuel and burned in Chrome steel combustion chambers in the rotor tips.
The jets consumed a large amount of fuel but the craft could take off and land vertically, hover, then with the engine driving a forward propulsion propellor, un-power the main rotor and operate in the manner of an autogyro.
The still images following the brief film footage show versions 3 and 4.
The craft remained experimental and did not enter combat operations like the Focke Achgelis and Flettner helicopters.
After the war Doblhoff and colleagues were spirited to the USA and other countries to work for companies like McDonnell, SNCASO and Fairey.
His colleague Stephan , who had also worked at McDonnell became lead technologist of the spectacular British passenger vtol Fairey Rotodyne http://www.youtube.com/watch?v=y9633v6U0wo

Category:

Science & Technology

Tags:

• German
• ww2
• Helicopter
• first
• jet
• tip
• rotor
• Hubschrauber
• Nazi
• Doblhoff
• WFN-342
• crash
• accident
• autogyro
• rotodyne

[charlesnorte]

A long time ago I saw a documental film about a germany helicopter and a woman pilot making a test of it. Somebody knows it?

[Grommo]

@charlesnorte

Footage of Hanna Reitsch flying the FW61 is on my other video watch?v=64fgG2CnHn0

[Grommo]

@charlesnorte

Footage of Hanna Reitsch flying the FW61 is on my other video

watch?v=64fgG2CnHn0

[Grommo]

Please watch?v=64fgG2CnHn0 to see other ww2 helicopters in action.

[witecracker2]

toys,,,...

[Grommo]

Nah, watch my where eagles dare part 2 vid

[SardaJunior]

Only the germans...

[witecracker2]

nazis i love nazis

[Ibringthetruth1]

@TheInversionTheory

well said. thanks.

[TheInversionTheory]

What's really interesting about these jet tips is the way they functioned... The fuel itself was injected through a series of tubing that actually ran through the rotors themselves.

The main advantage of this system was that because the rotors were being driven by thrust from their tips rather than being spun from the central shaft, there was no counter torque and thus no need for a tail rotor or other trimming mechanism.

[brianartillery]

Nazis - I hate those guys. It is seriously quite disturbing, even now, just what the Nazis were designing, and building during the war. Reality shows what they were doing, and makes some of the outlandish Nazi tech featured in the 'Hellboy' comics just a bit more worrying. Good job the bastards were defeated.

[TraustiGeir]

@Nomoreidsleft They would never allow history to repeat itself. They learned that in the most brutal way.

[TraustiGeir]

@30sectodeath War can accelerate technology by decades.

[30sectodeath]

why their so advance by that time?????

[charlesnorte]

@Grommo Thnak you, I´ll wacht it!