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The SABRE engine (Synergic Air BReathing Engine) is a design by Reaction Engines Limited for a hypersonic hydrogen-fueled air breathing combined cycle rocket engine/turbojet engine/ramjet engine for propelling the Skylon launch vehicle into low earth orbit (LEO). SABRE is the logical continuation of Alan Bond's series of liquid air cycle engine (LACE) and LACE-like designs that started in the early/mid-1980s for the HOTOL project.

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Wikipedia About SABRE

The SABRE engine (Synergic Air BReathing Engine) is a design by Reaction Engines Limited for a hypersonic hydrogen-fueled air breathing combined cycle rocket engine/turbojet engine/ramjet engine for propelling the Skylon launch vehicle into low earth orbit (LEO). SABRE is the logical continuation of Alan Bond's series of liquid air cycle engine (LACE) and LACE-like designs that started in the early/mid-1980s for the HOTOL project.

The SABRE design combines a lightweight turbine-cycle jet engine with an air precooler positioned just behind the inlet cone. At high speeds this precooler cools the hot, ram compressed air, and allows the jet engine to continue to provide high thrust even at very high speeds and altitudes. In addition, the low temperature of the air allows light alloy construction to be employed which gives a very lightweight engine — essential for reaching orbit.

The engine also includes rocket engine features which allow the vehicle to reach low earth orbit after leaving the atmosphere after shutting the inlet cone off at Mach 5.5, 26 km altitude.

History

The precooler concept is due to an idea originated by Robert P. Carmichael in 1955. This was followed by the Liquid Air Cycle Engine (LACE) idea which was originally explored by Marquardt and General Dynamics in the 1960s as part of the US Air Force's aerospaceplane efforts. This work eventually culminated in medium-thrust engines that ran for several minutes at a time. Although the program was generally successful, changing priorities and loss of USAF funding led to the idea being abandoned.

In an operational setting with LACE, the system was to be placed behind a supersonic air intake which would compress the air through ram compression, then a heat exchanger would rapidly cool it using some of the liquid hydrogen fuel stored on board. The resulting liquid air was then processed to separate out the liquid oxygen for burning in the engine. The amount of warmed hydrogen was too great to burn with the oxygen, so most was to be simply dumped overboard (nevertheless giving useful thrust.)

HOTOL's engine, the Reaction Engines RB545, was similar to the original LACE system, but much simpler in detail. Like the LACE system it used an air intake and a hydrogen heat exchanger, but was able to do away with much of the complexity of the USAF design, which included pumps and storage tanks along each step of the separation process.

The RB545 was a "straight-through" design that used careful arrangement of the components to dump the unwanted liquefied gasses directly overboard, instead of pumping it around from tank to tank. In addition, the RB545 did not liquefy the oxygen or nitrogen, but cooled and then simply compressed the gas in a similar way to turbojet engines. From that point on, the RB545, like LACE before it, consisted of a fairly conventional rocket engine, but running on a variable mixture of cooled, compressed air and liquid oxygen.

Search results for SABRE

Sabre (computer system) - Wikipedia, the free encyclopedia

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Sabre Foundation

Specializes in providing college and professional-level educational materials to institutions and individuals in Eastern Europe and the countries of the former Soviet Union.www.sabre.org/

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News about SABRE

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Sabre and Lufthansa Sign New Four Year Global Distribution Agreement

Business Wire via Yahoo! FinanceSOUTHLAKE, Texas----Sabre and Lufthansa have signed a new four year global agreement, providing agencies and corporations around the world with continued access to the airline's full content via the Sabre global distribution system .http://biz.yahoo.com/bw/090506/20090506005184.html?.v=1

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Samuel L Jackson to play pirate negotiator Andrew Mwangura

The Malaysian InsiderNEW YORK, May 8 — He has battled the enemies of the republic with a purple light sabre in the Star Wars prequels, exacted furious vengeance as hitman Jules Winnfield in “Pulp Fiction” and fought off a deadly nest of “Snakes on a Plane”. Now Samuel L Jackson could be taking on his toughest role yet: as a professional negotiator between hostile Somali pirates and the owners of hijacked shi...http://www.themalaysianinsider.com.my/index.php/showbiz/2591...

NIIT Technologies' Customer, Sabre Holdings, Recognized as a Laureate by the Computerworld Honors Program

Business Wire via Yahoo! FinanceDALLAS----NIIT Technologies' customer Sabre Holdings has been recognized as a Laureate by the prestigious Computerworld Honors Program. This year's Honorees will be commemorated during the 21st Annual Laureates Medal Ceremony & Gala Awards Evening on June 1, 2009 at the Andrew W.http://biz.yahoo.com/bw/090505/20090505006460.html?.v=1

News about Sabre

Sabre and Lufthansa Sign New Four Year Global Distribution Agreement

PR InsideSabre and Lufthansa have signed a new four year global agreement, providing agencies and corporations around the world with continued access to the airline’s full content via the Sabre global distribution system (GDS). “Our deal gives agencies ... http://www.pr-inside.com/sabre-and-lufthansa-sign-new-four-r...

NIIT Technologies’ Customer, Sabre Holdings, Recognized as a ...

Businesswire.comDALLAS--( BUSINESS WIRE )--NIIT Technologies’ customer Sabre Holdings has been recognized as a Laureate by the prestigious Computerworld Honors Program. This year’s Honorees will be commemorated during the 21st Annual Laureates Medal Ceremony ... http://www.businesswire.com/news/home/20090505006460/en

Roy Leads Canada to World Final

WGRZ TVSabres coach Lindy Ruff serves as head coach for Team Canada. Canada goaltender Dwayne Roloson, a former Sabre, had 22 saves for the win. Jonas Gustavsson had 29 stops for Sweden. In last year's final, the Russians trailed by two goals in the third ... http://www.wgrz.com/sports/story.aspx?storyid=66614&catid=4

VRX and Sabre Agree to Third Extension of Debenture Maturity Date

CNW GroupVANCOUVER, May 1 /CNW/ - VRX Worldwide Inc. (TSX-V:VRW) reports that VRX and Sabre have mutually agreed to further extend the amended maturity date of the convertible debenture that was entered into on January 30, 2006 with Sabre, Inc. from May 1 ... http://www.newswire.ca/en/releases/archive/May2009/01/c7748....

Weber Shandwick Named Global Agency of the Year by The Holmes Report

MSN MoneyCentralFirm to be Honored at U.S. SABRE Awards Dinner on May 12th NEW YORK , May 7 /PRNewswire/ -- Weber Shandwick was named global agency of the year by The Holmes Report , one of the leading public relations industry newsletters. The firm will be honored ... http://news.moneycentral.msn.com/provider/providerarticle.as...

Search results for Sabre

Sabre Airline Solutions

We help airlines better market, sell, serve and operate – from planning through execution . Helping airlines plan how to best offer their schedules to customers and generate the ... http://www.sabreairlinesolutions.com/

Pepper Spray, Bear Spray, Self Defense Spray, Red Pepper Sprays, Tear ...

Buy SABRE pepper spray and Frontiersman bear spray from SABRE Red the best self-defense pepper oc spray manufacturer in the world Security Equipment Corporation (SEC). Maker of ... http://sabrered.com/

Sabre Foundation - Home Page

Privacy Policy. Mailing List. If you would like to be on our mailing list please send an email with your postal details (email and snail mail) to ... http://www.sabre.org/

SABRE - Home

Introduction. Sabre Oxidation, headquartered in Odessa Texas, has been in business since 1995. Sabre personnel have worked together on applications of chlorine ... http://www.sabretechnologies.com/

Sabre EU > Home

Sabre EU Projectsite ... As part of SABRE’s Work Package 3 (Genomics and Bioinformatics) the Wellcome Trust Sanger Institute is well on its way to provide a 6x coverage of Pig ... http://www.sabre-eu.eu/

Wikipedia results for Sabre

Sabre - Wikipedia, the free encyclopedia

The sabre or saber (see spelling differences) is a kind of backsword that usually but not always has a curved, single-edged blade and a rather large hand guard, covering the ... http://en.wikipedia.org/wiki/Sabre

Sabre (computer system) - Wikipedia, the free encyclopedia

Sabre is a computer reservations system /global distribution system (GDS) used by airlines, railways, hotels, travel agents and other travel companies.http://en.wikipedia.org/wiki/Sabre_%28computer_system%29

Sabre Holdings - Wikipedia, the free encyclopedia

Sabre Holdings or Sabre, Inc. is an American travel technology company, encompassing several brands in three global travel distribution channels: travel agency, airline, and direct ... http://en.wikipedia.org/wiki/Sabre_Holdings

Fencing - Wikipedia, the free encyclopedia

For duels involving non-students, e.g. military officers, the academic sabre became usual, apparently being derived from the military sabre. It was then a heavy weapon with a curved ... http://en.wikipedia.org/wiki/Fencing

Sabre (fencing) - Wikipedia, the free encyclopedia

The sabre is one of the three weapons of modern sport fencing, and is alternatively spelled saber in American English. The sabre differs from the other modern fencing weapons, the ... http://en.wikipedia.org/wiki/Sabreur
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The Update: Paris rattles Iran sabr...

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edarem - Khachaturian's Sabre Dance

edarem - Khachaturian's Sabre DanceThe Sabre Dance evokes a whirling Armenian war dance, where the dancers display their skill with sabres. It has an exceptionally exciting rhythm. ... edarem Khachaturian Sabre...Flash - Video

Sabre Goes Private

Sabre Goes Private(80 sec.) Harrah's Entertainment mulls boosted buyout offer; investors await Fed interest-rate decision.Flash - Video

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Answers for SABRE

x.  Laila.  xHow does the Sabre computer system work?x. Laila. xSabre is the American Airlines version of the airline provided reservation system. It provides agents access to scheduling information for all the airlines plus cars and hotels and travel related ite...Animal mother!How deadly is a sabre compared to a katana?Animal mother!"ineffective weapon" in what sense? In combat, the skills of a swordsman wielding a sabre and a swordsman wielding a shinken are what determines the outcome. Thefirst priority is not to hew off limbs,...Doug DCould a F-100 Super Sabre be able to compete in today's air combat environment against at least 4th gen aircraDoug DDoubtful. Even the F-15 is being phased out due to the higher capabilities of the newer planes. In it's original configuration the armament was no where near as sophisticated as today's planes. ...L DDoes anyone know if a 1975 Rockwell Sabre 60 jet selling for $600k is just salvage or is it airworthy?L DIt's well over scrap value, that would only be in the thousands. It may need major work though, a bit of a restoration project.Animal mother!How lethal is a sabre compared to a katana?Animal mother!Hello Keyboard commander! I was unaware that a sabre was an ineffective weapon to begin with. If it is not very lethal then I do not see why it was used for centuries. May I inquire into why you wish ...
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