McDonnell Helicopters

[Stargazer]

MCDONNELL AIRCRAFT
VTOL and helicopter designs I'm aware of:
(NOT McDonnell Douglas)

M-28 hybrid convertiplane study (circa 1950)
37 US Navy XHJD-1 WHIRLAWAY
J-38 US Army XH-20 LITTLE HENRY
65C civilian WHIRLAWAY, not produced
78 USMC XHRH-1, mock-up only
79 BIG HENRY prototype
79 US Army XH-29 (BIG HENRY derivative, not built)
82 US Army XH-35 CONVERTIPLANE (= XV-1 > XL-25)
86 US Navy XHCH-1, mock-up only
99 USAF CONVERTIPLANE project, not built
113/P large military CONVERTIPLANE transport, not built
120 V-1 JEEP flying-crane
158 US Army LOH submission, not built
188 French Breguet 941 demonstrator
188E French Breguet 941S demonstrator
210/E/G evolutionary developments of the Breguet 941/942 designs, not built
260 series of multimission VTOL designs, not built
267 variant of Model 260, not built
276 variant of Model 260

 

[nugo]

Hi Stargazer2006!


Model 28 hybrid convertiplane study (circa 1950)---typo, shoud be Model 82 hybrid convertiplane study (circa 1950); XV-1/XH-35/XL-25
Model 267---F/A-18
Model 267---should be Model 276

 

[Stargazer]

I've made sure to strike these through in the list so that no one gets confused.

I must say that M-28 kind of seemed dubious, but I thought I'd seen a distinct "Model 267" but I can't seem to find it now... I didn't feature Model 276 in this list because it was always presented as "McDonnell Douglas", but I will add it here now to make things clearer.

 

[hesham]

By the way,


the McDonnell MD-530 was formerly Hughes Model-530.

 

[Stargazer]

the McDonnell MD-530 was formerly Hughes Model-530.

Hughes Helicopters Model 369/500 and all their derivatives were purchased by McDonnell Douglas.

 

[boxkite]

Model 76

Model 77

Source: http://aviationarchives.blogspot.com/2017/08/mcdonnell-model-8181a-helicopter.html

 

[Vahe Demirjian]

Are there any available drawings for the XH-29 helicopter?

 

[hesham]

Are there any available drawings for the XH-29 helicopter?

I think there is not.

 

[TomcatViP]

Nigeria selects Cayuse Warrior Plus light attack helo

Nigeria has selected the MD Helicopters (MDH) MD 530F Cayuse Warrior Plus (CWP) light attack helicopter, which was announced on 7 March.

www.janes.com

 

[TomcatViP]

Resurrected:

View: https://youtu.be/Lky6p9S0mFM?si=zZ9rW6pI0tfXDgIy

AIN editor-in-chief Matt Thurber visited MD Helicopters in Mesa, Arizona to fly the company’s most powerful helicopter, the MD530F. New management has been working to bring the manufacturer back to its potential after a series of decisions by previous owners Patriarch Partners, and Lynn Tilton led to a crippling bankruptcy. The previous owners have since relinquished all shares, and bond insurer MBIA now owns the majority of the company.

 

[Stargazer]

Are there any available drawings for the XH-29 helicopter?

I think there is not.

No drawings known to me either, but since the XH-29 was tobe the Model 79 (a.k.a. "Big Henry") we can imagine it would have looked the same as the company's prototype. The Model 79 was the brainchild of Friedrich von Doblhoff, , an Austrian of noble ancestry from Wiener-Neustaedter Flugzeugwerke (WNF), now Fred Doblhoff after Operation Paperclip ensured his talents would be put to U.S. advantage. Under the Third Reich, Doblhoff had led in the development of jet-rotor helicopters, and the first, WNF-342, was flown beginning in 1940.

From: McDonnell Aircraft Helicopters: 1942 to 1960; by Paul A. Czysz:
Doblhoff’s concept was for a “pressure jet rotor system” where high pressure air was piped through the rotor to a tip burner to provide thrust. So the rotor did not have to be sped up first to permit the ramjets to function.