Boeing SST
1968
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Boeing SST

The Boeing 2707 stemmed from President Kennedy's June 1963 call for a supersonic transport (SST) to compete with the Anglo-French Concorde. Unlike Concorde and the Soviet Tu-144, the US SST was to be made largely of titanium, making it capable of Mach 3. In 1966 Boeing's variable-geometry (swing-wing) Model 2707 was chosen over proposals from Lockheed and North American. Boeing built an impressive full-scale mockup and estimated future sales of 700 - 1000 SSTs. The technical challenges of a Mach 3 SST were greater than faced by its slower, smaller rivals.

The variable-geometry idea was abandoned in 1968 and a smaller fixed-wing version was planned, with test flights planned for 1970 and commercial service in 1974. Two prototypes were begun, but in 1971 the SST programme was cancelled. Increasing oil prices and environmental concerns were the excuses.

Boeing SST


Specification 
 CREW3
 PASSENGERS277
 ENGINE4 x 28690kg General Electric GE4/J5P afterburning turbojets
 WEIGHTS
    Take-off weight306175 kg675004 lb
 DIMENSIONS
    Wingspan54.97 m180 ft 4 in
    Length93.27 m306 ft 0 in
    Height14.10 m46 ft 3 in
 PERFORMANCE
    Cruise speed2900 km/h1802 mph

Comments1-20 21-40
John Denchuk, jdenchuk=hotmail.com, 08.01.2010

I have nothing to say !

Richard Heteny, canamwing=teckbot.com, 16.12.2009

The TU-144 NEVER EVER had american engines in it!

Orville, theodosia1=verizon.net, 17.11.2009

I was a member of the SST test team at the Boeing High Speed Wind Tunnel near Philadelphia, Pa.

Joe is correct.

The outcry from the people in the United States crushed the United States SST program. It was okay for the Concord to use our airspace. But we could not use our own air space.

After we moved the SST out of the Wind Tunnel we began testing the STOL and VSTOL jets. There was some uproar over those aircraft.

Er-Jin, erjinjang=hotmail,com, 03.07.2009

I wonder what could've happened if the plane went into service...

kareno, elidadora=hotmail.com, 03.05.2009

it looks horribal swear it suck's for real

Jim, jimklich=peoplepc.com, 04.03.2009

This larger plane would of been more profitable due to its size.

Jano Heine, jano.heine=yahoo.com, 20.02.2009

Oh my God,such a shame it wasn't build after all :-(

Brad, Brawil=bigfoot.com, 06.01.2009

Hey Dan
The XB 70 Valkyrie was a North American project and it did fly! See the NA page. It is too bad we never entered this race, though I understand the Concordsky (TU144) was engineered with american engines and avionics as a cooperative experiment after glastnost. I'd like to know where that led.

evets, pizamoto=yahoo.com, 26.11.2008

Spot on, JOE.

I do think, however, if Boeing and Lockheed had partnered, they would have cornered the market on HST. Leaving from coastal cities and flying over open water, such as the Concorde did, they would have had time to further develop sonic noise suppression systems, and we'd all be flying on one today.

JMO.

dan Wenger, danwenger=hughes.net, 26.07.2008

The Boeing program doesn't show the B-70 which was the design around which the SST program was based. The B-70 did fly and was originally thought to be something the Air Force could use in its inventory.

Doug, 21.04.2008

Well put Joe.

Joe, 29.11.2007

I would like to respond to David's inaccurate explanation as to why the SST wasn't built. Here are the facts. The environmental resistance to the project was so intense, the U.S. government pulled supplemental funding of the SST leaving Boeing with all the financial burden. I realize a socialist like David has little or no understanding of the fact that companies must recover developmental expenses. There was the fear that Boeing could not recover these costs. There is no government compensation in the United States like there is in socialist nations like the one time Soviet Union. Instead, Boeing developed the 747 which obviously became one of the most successful jetliners in history. An aircraft that only now has been rivaled. Profit is neccessary David for companies in the free world to survive.

Idris, i.e.armstrong=hotmail.com, 08.08.2007

They didn't fly it because at that time sonic boom supression had not been thought of as a way to quiet the jet at supersonic speed.

.........., .........., 01.08.2007

lol change my name jetplaneguy:P

.........., .........., 01.08.2007

so where is the plane anyway?

.........., .........., 01.08.2007

lol it looks like the plane crashed then they rebuild it
:P my friend usa airforce pilot:)

David, 30.07.2007

It wasn't built as America has an obsession with profit, and would not take a risk. The Europeans and Russians, on the other hand, did take risks, and so the history of aviation reflects reality. Rather than wishes. Concorde could not have been bettered by the SST, particularly the smaller version. That is why Airbus 380 will be successful over the caution of the Boeing approach.

Paul, webpa=aol.com, 16.07.2007

It wasn't built. A plywood/bondo mockup was built (common in the 60s-70s), last on display (ASFAIK) near Disney World in Orlando, FL.

But I agree: It should have been built, if only to use as a Presidential Transport.

David (Joyo Prower), Davida1993=cox.net, 07.04.2007

Damn. If it was built, then why was it never flewn?

kang_cason@yahoo.co.uk, 24.11.2006

Build another one

1-20 21-40

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FACTS AND FIGURES

© The cabin of the full-scale mock-up had room for 277 seats - 30 first class and 247 tourist in a seven-abreast layout.

© The Anglo-French and Soviet SSTs were only Mach 2 capable because speeds above Mach 2.7 required much greater use of heavy and expensive steel alloys and titanium to withstand frictional heating.

© The 2707 was to have an 18-wheel undercarriage, with the main wheels grouped in four bogies with four wheels each, arranged to spread the great weight and not overstress the runway.

© The swing-wing version could sweep its wings between 20 and 72 degrees. Minimum sweep gave better take-off and landing performance.



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