普惠Rocketdyne公司完成第一台RS-68A发动机硬件测试

明年首飞。

http://www.pratt-whitney.com/Med ... is+Ready+for+Flight

CANOGA PARK, Calif., March 8, 2011 – Pratt & Whitney Rocketdyne successfully completed a series of Hardware Acceptance Reviews on the first RS-68A production rocket engine, validating the world’s most powerful hydrogen-fueled engine is ready to power a heavy-lift vehicle into space in support of national security.  Pratt & Whitney Rocketdyne is a United Technologies Corp. (NYSE:UTX) company.

“RS-68A engine 30003 has demonstrated all the requirements for flight over a wide range of operating conditions,” said Dan Adamski, RS-68 program manager, Pratt & Whitney Rocketdyne.  “We look forward to working with our customers to ensure the RS-68A engines powering the Delta IV Heavy launch vehicle are successful in delivering their important payload into orbit.”

Engine 30003, the first of three RS-68A production engines to undergo a Hardware Acceptance Review, has been shipped to Decatur, Ala., for integration onto a United Launch Alliance Delta IV Heavy launch vehicle.  RS-68A production engines 30004 and 30005 will undergo Hardware Acceptance Reviews in March and April 2011, respectively, after completion of their hot-fire testing at Stennis Space Center in Mississippi.  These engines will then be installed onto the launch vehicle.  The three engines are scheduled to boost the Delta IV Heavy next year carrying a government payload into orbit.  The RS-68A Hardware Acceptance Reviews, conducted by the customer and Pratt & Whitney Rocketdyne, evaluate the engine’s compliance with detailed specifications, design, manufacture, checkout, test reliability and quality assurance, qualification and acceptance testing to determine the engines are ready for flight.

The RS-68A is an upgrade of the RS-68 engine, and is a liquid-hydrogen/liquid-oxygen booster engine designed to provide increased thrust and improved fuel efficiency for the Delta IV family of launch vehicles.  Each RS-68A will provide 705,000 pounds of lift-off thrust, or 42,000 more pounds of thrust than a basic RS-68 engine.

Pratt & Whitney Rocketdyne, a part of Pratt & Whitney, is a preferred provider of high-value propulsion, power, energy and innovative system solutions used in a wide variety of government and commercial applications, including the main engines for the space shuttle, Atlas and Delta launch vehicles, missile defense systems and advanced hypersonic engines.  Pratt & Whitney Rocketdyne is headquartered in Canoga Park, Calif., and has facilities in Huntsville, Ala.; Kennedy Space Center, Fla.; West Palm Beach, Fla.; and Stennis Space Center, Miss.  For more information about Pratt & Whitney Rocketdyne, go to www.prattwhitneyrocketdyne.com.      

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines, space propulsion systems and industrial gas turbines. United Technologies, based in Hartford, Conn., is a diversified company providing high technology products and services to the global aerospace and commercial building industries.

明年首飞。

http://www.pratt-whitney.com/Med ... is+Ready+for+Flight

CANOGA PARK, Calif., March 8, 2011 – Pratt & Whitney Rocketdyne successfully completed a series of Hardware Acceptance Reviews on the first RS-68A production rocket engine, validating the world’s most powerful hydrogen-fueled engine is ready to power a heavy-lift vehicle into space in support of national security.  Pratt & Whitney Rocketdyne is a United Technologies Corp. (NYSE:UTX) company.

“RS-68A engine 30003 has demonstrated all the requirements for flight over a wide range of operating conditions,” said Dan Adamski, RS-68 program manager, Pratt & Whitney Rocketdyne.  “We look forward to working with our customers to ensure the RS-68A engines powering the Delta IV Heavy launch vehicle are successful in delivering their important payload into orbit.”

Engine 30003, the first of three RS-68A production engines to undergo a Hardware Acceptance Review, has been shipped to Decatur, Ala., for integration onto a United Launch Alliance Delta IV Heavy launch vehicle.  RS-68A production engines 30004 and 30005 will undergo Hardware Acceptance Reviews in March and April 2011, respectively, after completion of their hot-fire testing at Stennis Space Center in Mississippi.  These engines will then be installed onto the launch vehicle.  The three engines are scheduled to boost the Delta IV Heavy next year carrying a government payload into orbit.  The RS-68A Hardware Acceptance Reviews, conducted by the customer and Pratt & Whitney Rocketdyne, evaluate the engine’s compliance with detailed specifications, design, manufacture, checkout, test reliability and quality assurance, qualification and acceptance testing to determine the engines are ready for flight.

The RS-68A is an upgrade of the RS-68 engine, and is a liquid-hydrogen/liquid-oxygen booster engine designed to provide increased thrust and improved fuel efficiency for the Delta IV family of launch vehicles.  Each RS-68A will provide 705,000 pounds of lift-off thrust, or 42,000 more pounds of thrust than a basic RS-68 engine.

Pratt & Whitney Rocketdyne, a part of Pratt & Whitney, is a preferred provider of high-value propulsion, power, energy and innovative system solutions used in a wide variety of government and commercial applications, including the main engines for the space shuttle, Atlas and Delta launch vehicles, missile defense systems and advanced hypersonic engines.  Pratt & Whitney Rocketdyne is headquartered in Canoga Park, Calif., and has facilities in Huntsville, Ala.; Kennedy Space Center, Fla.; West Palm Beach, Fla.; and Stennis Space Center, Miss.  For more information about Pratt & Whitney Rocketdyne, go to www.prattwhitneyrocketdyne.com.      

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines, space propulsion systems and industrial gas turbines. United Technologies, based in Hartford, Conn., is a diversified company providing high technology products and services to the global aerospace and commercial building industries.

原来普惠还搞这个，爪够长啊

终于好了呀
用了RS-68A之后DELTA-4系列的CBC就能实现完全统一了
真正实现了通用化

纸飞机 发表于 2011-3-10 20:31

能否科普一下神器RS-88{:yi:}

这是哪个国家的产品？

美国的

好多西啊, 有了这, 德尔塔射起来就更得心应手了

美国国家主席 发表于 2011-3-10 21:01


    这个我真不知道，你去问问土星5看

对英制单位没有感官认识，还是换算成公制的好理解，这个RS-68A海平面推力有多少吨（抑或kN）？

美国国家主席 发表于 2011-3-10 21:01

RS-88是为OSP配套的发射逃逸用引擎，算不上神器。

纸飞机 发表于 2011-3-10 20:31

CBC是什么？

回复 3# 隐形双发歼十改


PW在收购了Rocketdyne之后就有了

回复 12# panda123

Common Booster Core

panda123 发表于 2011-3-11 09:33


    公共推进核心，实际上就是德尔塔4的第一级

验证了这台世界上最强大的氢燃料发动机足以将一辆重型运载航天器送入太空，保卫国家安全。
人MD就是直接，不像咱打个卫星都还要通过农业部

RS-68这种燃气直驱的涡轮泵还是非常简单可靠的

没找到涡轮泵排气管

panda123 发表于 2011-3-11 09:35
收购之前就做火箭发动机，不过以上面级为主

Rocketdyne（洛克达因）就是做土星5的F1的那个。

小书童 发表于 2011-3-10 22:41


    320吨

dark_knight 发表于 2011-3-11 11:29


    要是我们搞这个和同样用燃气直驱的涡轮泵的700吨煤油，低轨超200吨都没问题了。不过我怀疑这种“低水平”的方案，有没有人提。

小书童 发表于 2011-3-10 22:41


    海平面300吨左右

    RD-170 直接拿来用不久可以了。

(笔误.......) 发射X-37B的第一级用的是RD-180

要是我们搞这个和同样用燃气直驱的涡轮泵的700吨煤油，低轨超200吨都没问题了。不过我怀疑这种“ ...
emellzzq 发表于 2011-3-12 00:10

    RD-170 直接拿来用不久可以了。

(笔误.......) 发射X-37B的第一级用的是RD-180

MD反正目前已经买了30台，还准备再买100+台，

NK-33也评估了， 测试结果很乐观， 不知道RS-68.......前景何在啊？

过去15年，MD为了获得NK-33 的技术资料可谓使尽浑身解数， 不过最后还是放弃了，走上了RD-180的路。

-

JSTCVW09CD 发表于 2011-3-12 15:27


    他问的是：“RS-68A”

JSTCVW09CD 发表于 2011-3-12 15:28


    RD-170 不好搞双机并联，我是说单室的。X-37B怎么用着RD-180？

JSTCVW09CD 发表于 2011-3-12 15:30


    提供同等运力时，NK-33的燃料是比RS-68省钱，可发动机本身呢？我不认为NK-33的有本事灭了RS-68。不能复用的没有到那么强。

emellzzq 发表于 2011-3-12 00:10

emellzzq 发表于 2011-3-12 15:43


    没写清楚， 发射的第一级用的是RD-180.

emellzzq 发表于 2011-3-12 16:01


    NK-33, 美国现在买了40多台了， 单价1百万美金。 （40多年前的老库存)

RD-180, 美国已经买了30多台， 单价6百万。


RS-68的成本？   （特别是可靠性.......)

emellzzq 发表于 2011-3-12 16:01


    两台NK-33的Taurus-2运载能力也没赶上德尔塔4

纸飞机 发表于 2011-3-12 16:46


    NK-33 现在可是白菜价。 库兹涅佐夫正在想办法提价..........

NK-33是库存货，现在肯定便宜，不过新造就难说了
RD-180当年的价格是9.8亿美元，100台
不知道现在有没有涨价

JSTCVW09CD 发表于 2011-3-12 16:45
RS-68的特点就是成本低可靠性高，要不然比冲不可能那么低

要比低成本没人比得过SPACEX的FLACON系列火箭，是不是其他公司，国家不用造火箭了？

中国的大火箭要加快了

acoustics 发表于 2011-3-12 16:09


    就是比冲高点的F1。

JSTCVW09CD 发表于 2011-3-12 16:45


    用完库存就不用了？