Register here

Author Topic: Lockheed AH-56 Cheyenne and derivatives  (Read 120670 times)

Offline Jemiba

  • Global Moderator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 7924
Lockheed AH-56 Cheyenne and derivatives
« on: October 21, 2006, 12:56:31 pm »
In this Lockheed advertisment the AH-56 is shown with an additional outline, giving
a deeper fuselage and it is advertised to be the basis for a transport for up to 30
passengers or as a ASW helicopter.
Are there any other pictures, drawings or photos of mock-ups of these versions ?
It takes a long time, before all mistakes are made ...

Offline Archibald

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2094
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #1 on: October 21, 2006, 01:26:57 pm »
Hmm got a list of AH-56 derivatives in Le Fana de l'aviation (August 2000, fantastic article on the cheyenne). But there's no pics sadly!!!
I think this picture could correspond to some of the projects in the magazine (I have to check!)
Conservatoire de l'Air et de l'Espace d'Aquitaine
http://www.caea.info/en/plan.php

Profanity: weaker mind trying to speak forcefully

Political correctness: just bury your head in the sand for the sake of appeasement and "peace for our time"
- https://fr.wikipedia.org/wiki/Serge_Dassault#Affaires_

Offline Dronte

  • Senior Member
  • CLEARANCE: Confidential
  • **
  • Posts: 96
  • Argentinean ugly bird
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #2 on: October 21, 2006, 03:43:54 pm »
The only drawings of derivatives of the AH-56 that I know:

-Navy's combat rescue

-Twin engine

-Marines "twin pack" engine version

(source: Warbirdtech Series Volume 27-AH56 Cheyenne)

Nonmemory that the alluded source makes reference to the version asw

Offline Orionblamblam

  • Secret Projects Guru
  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 7153
    • Aerospace Projects Review
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #3 on: October 21, 2006, 08:20:55 pm »
Shazam!
Aerospace Projects Review


And so the endless circle of life comes to an end, meaningless and grim. Why did they live, and why did they die? No reason. Two hundred million years of evolution snuffed out, for in the end Nature is horrific and teaches us nothing

Offline boxkite

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 791
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #4 on: October 22, 2006, 04:07:38 am »
Quote
In this Lockheed advertisment the AH-56 is shown with an additional outline, giving
a deeper fuselage and it is advertised to be the basis for a transport for up to 30
passengers or as a ASW helicopter.

Lockheed's proposed commercial version of the AH-56. (SOURCE: Hellman: “Helicopters and other VTOLs”, Garden City, N. Y., 1970). It should be the artist’s impression to Scott’s CL-1026.GIF post.

Offline boxkite

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 791
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #5 on: October 22, 2006, 04:09:40 am »
This was from the cover of “American Aviation”, Jan 1968. (Jens, please ask Mike – he sent me this scan. Maybe he has the whole article. Keep me informed.) It’s the CL-1026 or the CL-1025??? The writing behind the cockpit is illegible. Did a CL-1025 compound helicopter design exist?

Offline boxkite

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 791
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #6 on: October 22, 2006, 04:16:49 am »
Sorry, here's the promised scan ...

Offline boxkite

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 791
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #7 on: October 22, 2006, 04:18:10 am »
An artwork from “Der Flieger” 12/1965, titled “Project of an [Lockheed] ASW helicopter” – any relation to the AH-56 (although I don’t believe)? It looks like a pusher propeller instead of the tail rotor.

Offline Jemiba

  • Global Moderator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 7924
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #8 on: October 22, 2006, 11:53:28 am »
Judging the appearance, this ASW helicoopter comes quite close to the outline shown
in the advertisement. I see a pusher prop, too, but I can't see tail rotor ?
Another project, that may be related to the AH-56 is this 60-seater, although this
isn't mentioned, too .
(From Aviation Week 1965 9-17)   
It takes a long time, before all mistakes are made ...

Offline boxkite

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 791
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #9 on: October 22, 2006, 02:14:15 pm »
"Der Flieger" 12/1965 calls it "Metroplan" (range 800 km, speed 600 km/h).

Offline Jemiba

  • Global Moderator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 7924
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #10 on: October 23, 2006, 03:25:56 am »
And, shame on me, it can't be a AH-56 derivative ! The picture on my HD was just
called "60-seater", but I found it in an Interavia issue, which clearly says, that it is
a foldable rotor design ...
I really should tidy up my archive     :-\
It takes a long time, before all mistakes are made ...

Offline amsci99

  • Senior Member
  • CLEARANCE: Secret
  • **
  • Posts: 238
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #11 on: October 23, 2006, 04:01:51 am »
Here's a link to the XMH-4M, a paper project by Mitsubishi Heavy Industries utilising the Lockheed Rigid Rotor and AH-56A propulsion layout.

http://www.geocities.co.jp/Technopolis/2415/sato.html

Offline Matej

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 2617
  • Multiuniversal creator
    • Hitechweb - bizare aviation
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #12 on: October 23, 2006, 06:38:37 am »
I really should tidy up my archive     :-\

When you will finish, I want to order you also for mine  ;D

Bizarre aviation expert.

Offline Jemiba

  • Global Moderator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 7924
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #13 on: October 23, 2006, 12:31:04 pm »
"Here's a link to the XMH-4M"
Interesting project, thanks for that link ! Anyone, who can tell, what the description
tells us ? What was it intended for ? It seems, that it has foldable wings, so probably
a foldable rotor, too, because ohterwise folding the wings wouldn't make much sense.
Shipboard use ? Or just for easy stowage on the overcrowded japanese mainland ? 

@Matej:
How much help do you expect from someone, who probably has an age
of much more than 90 years then ?    ;)

And we should always bear in mind : People, who are tidy, are just too lazy
for searching ! 
« Last Edit: September 25, 2015, 12:02:51 am by Jemiba »
It takes a long time, before all mistakes are made ...

Offline Orionblamblam

  • Secret Projects Guru
  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 7153
    • Aerospace Projects Review
Re: Lockheed AH-56 Cheyenne and derivatives
« Reply #14 on: October 24, 2006, 05:46:14 pm »
Bet you weren't expecting THIS:
Aerospace Projects Review


And so the endless circle of life comes to an end, meaningless and grim. Why did they live, and why did they die? No reason. Two hundred million years of evolution snuffed out, for in the end Nature is horrific and teaches us nothing