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Jun 28, 2010

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This image, posted with little additional information on the NASA site, is one of two supersonic studies done for its N+3 airliners of the future project.

The other study, by Boeing, may be released shortly.

The unusual tail design scoped in the LockMart study is intended to disrupt and diminish the supersonic booms generated by SST’s. These shock waves were sufficiently intense directly underneath Concordes cruising at close to Mach 2 to damage some buildings and shatter windows, causing it to be banished from flying over populated areas.

The Lockheed Martin design, of publicly unspecified size and range at this stage, would be able to fly any route operated by today’s subsonic airliners, in a study anticipating the technologies and materials available to the air transport industry from 2035.

Some might however wonder if ‘proprietary’ information about the engines has caused the released image to ‘fudge’ them. These look like the engines that were fitted to the B-58 Hustler America’s first but vulnerable supersonic bomber, and do not feature variable intakes like those on Concorde. Of course we don’t know, at this stage, how fast the airliner shown would fly, or its other characteristics.

What can be expected is that if the tail and engine configuration shown in the graphic is likely to work as predicted, a US patent will have already been lodged, and may well, when found, reveal a great deal more information.

The Hustler, fast, but easily kiiled at its cruise altitude
The Hustler, fast, but easily kiiled at its cruise altitude

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2 comments

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2 thoughts on “Lockheed Martin’s quiet green supersonic machine

  1. dirtysnowball

    IIRC most American supersonic airliner concepts over the last 60 years seem to boast cylindrical nacelles with conical inlet spikes, not least the Boeing 2707, the closest the Yanks came to building an SST. It seems to be the national style.

    And, to nitpick, the Hustler did have variable intakes. It may not have the mess of ramps that live in Concorde’s nacelles, but beyond Mach 1.42 those intake spikes move forward.

  2. Boeing’s Concorde successor – Plane Talking

    […] the Lockheed Martin supersonic entry, the proposed Boeing design doesn’t promise to reduce to negligible levels […]

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