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s_span class="mw-headline" id="Historique">Histoire[edit]

Blue Engine 4[3] or BE-4 is a step burn missile motor that is being engineered by Blue Origin. BE-4 will be built with the help of commercial and government funds. Capable of generating 2,400 kilonewton (550,000 lbf) of propulsion at ocean-height. 4 ] Both first and second stages of the motor are foreseen.

It was the first BE-4 motor to be hot-fired; the test took place on 18 October 2017. From 2017, the BE-4 was envisaged for use on two launchers under design. Previously, a modification of the BE-4 derivation for the XS-1 spacecraft was taken into consideration but not chosen for a US clearance program.

The company has announced its intention to make the motor available for commercial use by non-ULA customers upon completion of engineering and also intends to use the motor in its own new orbital launch ramp. From March 2016 onwards, ATK also evaluated ATK blues motors for its launchers.

5 ][needs updating] BE-4 uses liquefied petroleum gases instead of normally used missile propellants such as jet fuel. "The Jeff Bezos' Blue Origin supplies power plants for the launch of the Nation's Emergency Rooms." "Blue Origin and ULA bring the heat to missile combat." April 7, 2017. The Ars goes to the mysterious missile plant of "Blue Origin".

United Launch Alliance Building Rocket of the Future with industry-leading strategy alliances. "{\a6}UTLA invests in blues origin engine as RD-180 replacement." ILA Execs Spell Out Logic Behind Vulcan Design Choices". Brought back on April 25, 2015. Jeff (April 7, 2015). "the BE-3 engine during BE-4 work".

Brought back on April 8, 2015. More than 100 step-by-step combustion tests in the development of the BE-4 engine". Blauer Ursprung. 1. BE-4 motor completely mounted. "Bleu orig just sent a jerk through the air and space industries." "AR1 engine". It works pretty well," said BE-4 Bluefield Chief Executive Bob Smith on the same podium as Bruno.

"We have gone through several hundred seconds of fire, plus over 200-second fire of this motor, so we feel very good about its advancement and what we can supply both for the markets and for our own use. Published "ULA develops Blue Origin for a high-performance new missile engine".

"ULA, the Air Force, is spellbound by the Russian engine ban's timing." Centennial, Colorado, United Launch Alliance, a majority-owned United Launch Services LLC affiliate, has received an additional US$46,629,267 deal to develop the Vulcan BE-4 and Advanced Cryogenic Evolved Stage (ACES) missile engine prototype for the Evolved Expendable Launch Vehicle Programme.

Under this other deal arrangement, joint investments are required with United launch services for the costs of developing prototype Vulcan BE-4 missile drive system, which is a boost stack motor, and for the costs of the..... Vulcan BE-4 Awards are for $45,820,515 or 98...intended for use on the United Launch Alliance's Vulcan launcher.

In the financial year 2015 of the German Air Force, research, deployment, testing and evaluating equipment amounting to USD 26,344,603 is mandatory at the date of allocation. The United Launch Services contribution at the date of allocation was $40,828,213. United Launch Services' entire prospective capital expenditure, which includes all stock option awards, is US$134,196,971. "Could alter the face of astronautics."

"Bleu Origin Introduces New Glenn Orchestra LV." New Glenn - SpaceNews.com" - "Blue Origin turns on motors for the second phase of New Glenn". "For the XS-1 space plane, DARPA chooses missile engine." "Blu Origin chooses Alabama for missile power plant manufacturing and ends Florida's hopes." "And Jeff Bezos takes a big leap into the camps in Blues Origin's BE-4 missile motor update."

550,000 pounds of thruster drive] can cause a great deal of abrasion, especially when using conventional spherical and rolling contact bearing. In order to maximise re-usability of the motor, the Blue Origin crew takes a different stand. In order to keep the BE-4 operating flawlessly, Bezos says that the turbines in the core of the engine's turbo pump use a thin liquid fuel layer as a bearing.

"BE-4 methane fuel missile engine". Bleu Origin is the first BE-4 missile jet to be hotfired. UDMH, UH 25, motors in progress are printed in cursive.