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Author Topic: Cunningham-Hall GA-21M and GA-36  (Read 7502 times)

Offline Skyblazer

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #15 on: May 26, 2016, 12:32:28 am »
Best account of the Cunningham-Hall story I've seen so far was in the AAHS Journal.
I'm attaching small size versions of the pages for information purposes.
(unfortunately, no mention of the elusive unknown projects)

Offline Apophenia

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #16 on: May 26, 2016, 10:16:40 am »
Great stuff, thanks! Nice to see a photo of the NACA Fairchild 22 outside of the wind tunnel  :D

On that 'GA-31', I wonder if Cunningham-Hall might have applied designations to their wing profiles and individual wing designs.

Offline hesham

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #17 on: May 28, 2016, 08:24:22 am »
My dear Apophenia,

GA-31 ?,I think you meant GA-21,right ?.

Offline Apophenia

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #18 on: May 28, 2016, 01:50:24 pm »
Hesham: My 'GA-31' reference was to Skyblazer's Reply $14:

... Meanwhile, the Sarah Clark Collection index also mentions a "GA-31", which I previously assumed to be a likely typo for either GA-21 or GA-36... but you never know, it could also be any of the unidentified projects you mentioned.

If that 'GA-31' is real, a further speculation as to its identity might be the otherwise-undesignated 'Experimental Observation and Training Airplane' mentioned in the Smithsonian NASM 'Cunningham-Hall Collection, 1917-1940 (bulk 1928-1930)'.

http://airandspace.si.edu/collections/artifact.cfm?object=siris_arc_227722

BTW: Those Sept 1935 NACA Facility 643 Test #55 Cunningham-Hall wing test were on behalf of the US Navy. The 'Experimental Observation and Training Airplane' is obviously a design for a military aircraft but the description is to vague to distinguish between a Army Air Corps or US Navy requirement.

Offline hesham

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #19 on: May 28, 2016, 02:00:52 pm »
Many thanks to you my dear Apophenia,

there was also GA-50,GA-60 and PT-4 ?.

Offline Apophenia

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #20 on: May 28, 2016, 03:08:17 pm »
... there was also GA-50,GA-60 and PT-4 ?.

Yes, the PT-4 was a reduced-capacity PT-6. No details on the GA-50 or GA-60.

Offline hesham

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #21 on: October 16, 2018, 06:04:32 am »
What was this ?;

Cunningham-Hall X-89 "Mystery Ship" Biplane, with small-chord upper wing.

https://en.wikipedia.org/wiki/Cunningham-Hall_Aircraft_Corporation

Online Schneiderman

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #22 on: October 16, 2018, 08:26:23 am »
Described in attachments 3 and 4 in post #15 by Skyblazer above

Offline hesham

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Re: Cunningham-Hall GA-21M and GA-36
« Reply #23 on: October 17, 2018, 05:38:55 am »
Described in attachments 3 and 4 in post #15 by Skyblazer above

Thanks,but GA-50 & GA-60 are still mystery ?.