Nemeth ramjet helicopter design

[boxkite]

An engineer(?) or a small US company with name Nemeth (no entry in Bill Gunston's otherwise very helpful "World Encyclopaedia of Aircraft Manufacturers") developed a ramjet-driven helicopter in 1948. The information comes from Rolf Besser's book "Technik und Geschichte der Hubschrauber" volume 1 (page 122), but the author gives neither illustration nor a description.

Can anybody help?

 

[hugo007]

Hi,
Somewhere on my harddisc i found this picture, uncredited
I think it was from a photo i took at the Buckeburg museum in Germany.

Greetz

 

[Matej]

This is what I call "minimal design". Good as a demonstrator but questionable for the further development that led to the operational aircraft and practical use.

 

[boxkite]

Hi,
Somewhere on my harddisc i found this picture, uncredited
I think it was from a photo i took at the Buckeburg museum in Germany.

Greetz

Thanks, hugo007, for answering my old question. Did you take the photo inside the exhibition or in the archive?

 

[hugo007]

Sorry,
It was on a visit at least 20 years ago,
with my lens against the display glass, and a basic text card 1947 Nemeth Helicopter Company.
In the same display case were pictures of the Ambi-Budd flying car,(no text at all)
and the Pentecost Hoppicopter.
Currently the Buckeburg museum is building a big extension,
when its finished i will be (hopefully) visiting again.

 

[walter]

Dear boxkite,

I found following info on the Nemeth pulsejet helicopter in my old shoebox.
Designed and built by Mr. Stephen Paul Nemeth and his Nemeth Helicopter Corporation. Engines were two Nemeth pulsejets delivering the equivalent of some 25 hp each. Reportedly the aircraft was completed in or around 1946 and briefly tested.
rotor diameter 26ft, estimated max. speed 90 mph, cruise 85 mph, range 290 miles
Sorry for the bad quality of the picture.

PS: I think the picture of Hugo007 may depict the Capital C-1 Firefly of Horace T. Pentecost and built by the Capital Helicopter Corporation and flown in March 1954.

 

[hugo007]

Oeps,

I'am so sorry, must have mixed-up the captions then, because that 2nd picture resides on my HDrive as
Pentecost Firefly, (here's almost the same pic. with a little more house or barn)

 

[boxkite]

Thanks to all for disentangle the short-time confusion .