Parasol Wing Projects

[flateric]

Boeing M-4.5 Double Parasol Wing concept was tested in 1978 in Advanced Air breathing Concept tests for potential advanced fighter interceptor designs. The tests were conducted in the four-foot transonic wind tunnel at the Arnold Engineering Development Center and sponsored by the Air Force Flight Dynamic Laboratory.

 

[flateric]

Boeing 1978 Double Parasol Wing fighter artist impression and patent images

 

[hesham]

Hi,

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19870008285_1987008285.pdf

 

[KJ_Lesnick]

I guess the parasol wing works due to favorable compression lift effects

 

[Simon666]

Hi,

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19870008285_1987008285.pdf

There is a Boeing patent for a parasol wing fighter around, that always intrigued me so I'd like to read more. However, when I try to open your link Adobe says file is damaged and could not be repaired. :'(

 

[flateric]

when I try to open your link Adobe says file is damaged and could not be repaired. :'(

this means that you didn't download full file, ot transfer was interrupted due to timeout
download it with any download manager like Flashget or GetRight

 

[Simon666]

Thanks a lot.

 

[overscan (PaulMM)]

Moved to new topic. Added McDonnell-Douglas Parasol Wing design scanned by Mark Nankivil. Looks very like wind tunnel model in first post identified as a Boeing design.

 

[Stargazer2006]

The second one, actually. Look at the nose and the T-tail.

 

[flateric]

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19870008285_1987008285.pdf

BTW, this one on photo was strategic cruise missile

 

[Skybolt]

Lockheed explored the concept, too, circa 1982, in the framework of a much larger Project 2484 for USAF covering High Altitude Configuration Technology. The Cl-2218-1 was one of several iteration of this TDN, dedicated to recon platform studies. This recon aircraft would have cruised at Mach 5.0 at an altitude of over 100.000 feet with a range of 5000 Nmi and a payload of 4500 lbs. Fuel, LH. Turboramjet engines.

 

[hesham]

Hi,

http://archive.aviationweek.com/image/spread/19801013/30/2

 

[Mark Nankivil]

Good Day All -

A few scans from a earlier donation I finally got around to scanning. McDonnell Douglas wind tunnel model and artwork. Greater St. Louis Air and Space Museum collection.

Enjoy the Day! Mark

 

[taildragger]

What is/was the expected benefit of a parasol wing on a supersonic aircraft?

 

[Sundog]

What is/was the expected benefit of a parasol wing on a supersonic aircraft?

The same benefit as the bent down wing tips on the XB-70. They were early versions of Wave Riders, that used the shock wave from the nose to increase supersonic L/D. The Boeing design with the inverted U shaped gull wings used the shock wave off of the Nacelle inlet shock cones for the same purpose.