US Supersonic Transport(SST) Program post-1971

[flateric]

PROPULSION TECHNOLOGY ADVANCES NEEDED FOR A QUIET SUPERSONIC TRANSPORT

Operation of a U.S. developed supersonic transport must and will meet community noise standards. This paper examines the airport noise problems of large transport aircraft, highlights critical considerations, and then studies possible solutions available from advanced propulsion technology. Engine s

www.sae.org

 

[raptor82]

Langley Research Center archive :

Twin Fuselage SST 1983-L-08446

 

[hesham]

From Hearing report.

 

[hesham]

From Hearing report.

 

[hesham]

Hi,

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19880003072_1988003072.pdf

How to get this report again ?.

From that magazine,

Popular Science

Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.

books.google.com.eg

 

[overscan (PaulMM)]

How to get this report again ?.

Use ntrs.nasa.gov/citations/ and add the first number from the filename - in this case 19880003072 - to the end.

Planform effects on the supersonic aerodynamics of multibody configurations - NASA Technical Reports Server (NTRS)

An experimental and theoretical investigation of the effect of planform on the supersonic aerodynamics of low-fineness-ratio multibody configurations was conducted. Longitudinal and lateral-directional aerodynamic and flow visualization data were obtained on three multibody configurations. The...

ntrs.nasa.gov

 

[hesham]

Many thanks my dear PaulMM.

 

[Archibald]

Hi,

Vought AST-102 and AST-200,and some designs from 1963.


http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790013875_1979013875.pdfhttp://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790013875_1979013875.pdf

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19700077971_1970077971.pdf

First link salvaged - direct access to the pdf.

https://web.archive.org/web/20100208041423/http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790013875_1979013875.pdf

 

[hesham]

From this report.

 

[hesham]

This Model was called Lockheed CL-1701-7.

From this report (Picture 7).

 

[blackkite]

Hi! McDonnell DouglasDouglas DC-AST model.

https://www.deviantart.com/rlkitterman/art/DC-AST-DSCN4074-963952616

「In the 1990s, NASA restarted development of an American supersonic jetliner, a project started and terminated in the 1960s, under the "High Speed Civil Transport" brand. McDonnell Douglas proposed a 300-passenger quadjet with a range of 5000 nautical miles and top speed as high as Mach 2.4, but never built anything close to a full airframe. That was the second time the company or its predecessors had planned a supersonic jetliner but dropped their proposal, as the Douglas 2229 was not submitted to the FAA in the same project that saw the earlier Boeing 2707 and Lockheed L-2000. McDonnell Douglas's only supersonic planes remained the ones built for the military until the 1997 merger with Boeing, and again their only supersonic planes are military. Maybe we'll get an American Concorde flying some day. In the meantime, there is a large model of the McDonnell Douglas SST designated DC-AST at the National Museum of Transportation in St. Louis, Missouri.」

 

[Deleted member 4286]

Hi! McDonnell DouglasDouglas DC-AST model.

https://www.deviantart.com/rlkitterman/art/DC-AST-DSCN4074-963952616

「In the 1990s, NASA restarted development of an American supersonic jetliner, a project started and terminated in the 1960s, under the "High Speed Civil Transport" brand. McDonnell Douglas proposed a 300-passenger quadjet with a range of 5000 nautical miles and top speed as high as Mach 2.4, but never built anything close to a full airframe. That was the second time the company or its predecessors had planned a supersonic jetliner but dropped their proposal, as the Douglas 2229 was not submitted to the FAA in the same project that saw the earlier Boeing 2707 and Lockheed L-2000. McDonnell Douglas's only supersonic planes remained the ones built for the military until the 1997 merger with Boeing, and again their only supersonic planes are military. Maybe we'll get an American Concorde flying some day. In the meantime, there is a large model of the McDonnell Douglas SST designated DC-AST at the National Museum of Transportation in St. Louis, Missouri.」

 

[hesham]

From Aviation magazine 1980.

 

[blackkite]

Hi! Boeing HSCT.

File:Hiller Aviation Museum Boeing 2707 SST model (27168899972).jpg - Wikimedia Commons

commons.wikimedia.org

 

[hesham]

From Aviation magazine 15-2-1984

 

[blackkite]

Hi! Lockheed SST with wing fence and without wing fence.　.

 

[blackkite]

Hi! Boeing HSCT.

 

[blackkite]

Another Boeing HSCT.

 

[blackkite]

Hi! MD AST. (pointed tail)

(image)

Supersonic passenger aircraft. 1980-1990. – Polot

polot.net

 

[blackkite]

Hi! MD HSCT.

 

[blackkite]

According to the explanation of this picture, this model is (MD)AST.

Another explanation.(from Cave of the winds)
A wind-tunnel model of a supersonic transport undergoing testing at NASA Langley Research Center on January 17, 1975. The 30 foot by 60 foot tunnel was used in the mid 1970s to test the model at low speeds

Attachments​

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[blackkite]

Hi

 

[Musashi311]

Hi! MD HSCT model.
https://www.worthpoint.com/worthopedia/model-high-speed-civil-transport-1837395462

The Boom Overture really reignited the obsession I once had for supersonic airliners when I was a child. The MD proposal looks a bit like the Ark Bird from the Ace Combat franchise funnily enough.


Was the MD or Boeing HSCT going to have some kind of augmented reality system if built or would it retain the classic drooping nose like the Concorde?

 

[blackkite]

According to a short essay on the next generation SST co-authored by NASA's Supersonic Research Aircraft Manager and Propulsion Engineering Manager, published in the August 1997 issue of Aerospace America magazine, at the time NASA was considering an SST with a cruising speed of Mach 2.4, seating for 300 passengers, and a range of 9,250 km as part of the HSRP program, the aircraft would not adopt a nose-folding mechanism for the nose/cockpit, following FAA technical guidance, and would not have a window in front of the nose, so that pilots would not see the outside world with their naked eyes, but rather on a large display generated by a computer, which would result in a weight reduction of 10,000 pounds.

 

[blackkite]

Hi! Boeing double delta design?

 

[blackkite]

Hi! Folding wingtip.
Source : https://www.aerospaceprojectsreview.com/blog/?p=1169

 

[Musashi311]

Amazing stuff, Blackkite! Thanks so much