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DHC V/STOL model

hesham

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Hi,

here is unknown De Havilland of Canada V/STOL model;who can
identify it?.
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800019802_1980019802.pdf
 

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Apophenia

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Hesham,

This is the large-scale, external augmentor V/STOL model tested in the NASA Ames Research Center's 40' x 80' wind tunnel in the late '70s and early '80s.

In a sense, this model is a follow-on from the large-scale models of the 1960s (first wing a straight wing, later replaced with a swept wing of the same aspect ratio). A flight research vehicle was projected (which was to be built by Boeing).

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720009048_1972009048.pdf

For more on your model, search D. B. Garland. For more on the earlier models, search D. C. Whittley.

[Added] Oops, image link corrected.

BTW, the 1966 model was part-funded by the CDRB (Canadian Defence Research Board, now DRDC). The engine in your model would be one of the 24 J97-GE-3 UAV turbojets put in storage at Ames after the 1971 termination of the AQM-91 Compass Arrow project.

There are a number of papers by Don Whittley available on the web. Unfortunately, most are for purchase as 'hard copies'.
 

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Jemiba

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From Aviation Week 15/72, two photos of the model and a 3-view of
the proposed testbed, using the DHC-5.
 

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hesham

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Thank you my dears Apophenia and Jemiba.
 

Apophenia

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Cheers Jens!

I'd read Whittley's description of the pylon-mounted engines for the augmentor-wing Buffalo but never seen a depiction before. Many thanks ;D
 

Jemiba

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As it seems to be of special interest, here the drawings from the above
mentioned issue of Aviation Week, describing the intended arrangement
of engines and flaps.
 

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Apophenia

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Amazing stuff ... many thanks Jens!

By the date of this Aviation Week article, I presume that all this work was feeding into the DHP-72 concept. http://www.secretprojects.co.uk/forum/index.php/topic,1629.0
 

c460

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Model of a testbed for the "augmentor wing" exhibited at Le Bourget 1971, from Aviation Magazine 565.
The caption describes the Canadair CL-246 as an aircraft that would make use of the research done for this unnamed testbed.
For the CL-246, see this topic: http://www.secretprojects.co.uk/forum/index.php/topic,13862.0.html

PS: Why is this in "Aerospace" instead of "Postwar projects" ?
 

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hesham

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Jemiba said:
From Aviation Week 15/72, two photos of the model and a 3-view of
the proposed testbed, using the DHC-5.


And from DTIC;


http://www.dtic.mil/dtic/tr/fulltext/u2/761972.pdf
 

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