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Model of RD-0146
Country of origin Russia
Date 2001
Designer KBKhA Design Bureau
Manufacturer TsSKB Progress
Application engine for KVTK upper stage
Status In development
Liquid-fuel engine
Propellant LOX / LH2
Cycle Expander cycle
Thrust (vac.) 98 kN (22,000 lbf)
Chamber pressure 79 bars (1,150 psi)
Isp (vac.) 463 seconds (4.54 km/s)
Length 2.2 metres (7 ft 3 in)
Diameter 0.71 metres (2 ft 4 in)
Dry weight 242 kilograms (534 lb)

The RD-0146 is a Russian cryogenic rocket engine. It is said to be the Russian version of the Pratt & Whitney Rocketdyne RL10 engine.[1][full citation needed] The RD-0146 engine was developed by KBKhA design bureau in Voronezh, Russia, in cooperation with the American Pratt & Whitney Rocketdyne company. In 2009, it came into prominence, as Russian space agency chose it for the second-stage of the Rus-M launch vehicle designed to carry the future Russian PPTS manned spacecraft.[2][full citation needed]


In 1999, Khrunichev requested KBKhA to develop RD-0146U version of the engine for Proton and Angara rockets. The development of the engine was partially financed by Pratt & Whitney Rocketdyne. Pratt & Whitney signed a preliminary marketing agreement on April 7, 2000 with Russia’s Chemical Automatics Design Bureau giving Pratt & Whitney exclusive international marketing rights to the RD-0146.[2]


The RD-0146 is the first Russian rocket engine not to feature a gas generator and to be equipped with extendable nozzle extension without a cooling system. The engine is capable of multiple firings and thrust control in two planes. According to the developer, the lack of generator ensures high reliability of the engine for multiple firings.[citation needed]

See also[edit]


External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/RD-0146 — Please support Wikipedia.
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Testing RealPlue settings for Bobcat Proton and RD-0146. Basic Proton launcher with cryogenic upper stage.

KSP Realism Overhaul - Proton RealPlume test 2

Test RealPlume configs for BobCat Proton and RD-0146 First stage sep 5:13, RD-0146 ignition 9:08.

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7 news items

Wed, 13 May 2009 05:51:50 -0700

However, due to potential proliferation problems, Pratt & Whitney was not able to continue this cooperation, prompting KBKhA to start an independent development of the RD-0146 engine. (331) Pratt & Whitney still partially financed the development of ...


Mon, 23 Dec 2013 15:20:16 -0800

Further evolution is noted in the notional Soyuz-3 project, which replaces the Soyuz-2 upper stage with a new unit, based on a Hydrogen-driven – as opposed to Kerosene – Soyuz-2 upper stage, using the new RD-0146 engine co-developed with Pratt ...
Wed, 15 May 2013 20:04:57 -0700

Hydrogen infrastructure could probably grow from initial facilities built to support upper stages of future rockets equipped with the RD-0146 engine. However a much more powerful hydrogen engine, like Energia's RD-0120 from the Soviet era, would have ...
HPCwire (blog)
Thu, 06 Oct 2011 07:54:50 -0700

... the Russian city of Sarov (part of Russia`s biggest state nuclear corporation – Rosatom). source close to Rosatom said to CNews that software had been used to model some elements of the new RD-0146 spacecraft engine and parts of the Rus-M launcher.”.
Wed, 24 May 2006 17:00:00 -0700

The successful debut of the Soyuz-2-1v rocket last month might rekindle hopes for the development of much more powerful 21st-century incarnations of the historic Soyuz launchers. If ever approved, the Soyuz-2-3 project would be the next in line to go ...


Thu, 25 Dec 2014 20:30:09 -0800

KVSKとKVTKには、米国のエアロジェット・ロケットダイン社が製造しているRL10エンジンをロシアで生産したRD-0146エンジンが搭載される。RF-0146は液体酸素と液体水素を推進剤として使用するエンジンで、四酸化二窒素と非対称ジメチル・ヒドラジンを推進剤とする ...


Thu, 07 Nov 2013 02:03:46 -0800

[据俄罗斯军工综合体网站2013年11月2日报道] 10月28日,俄罗斯化工自动化设计局(KBkhA)成功进行了7.5吨推力的RD-0146D氢氧发动机调试试验阶段的初期点火试验。RD-0146D发动机以推力10吨的RD-0146发动机为基础研制 ...

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