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Building on the technology from the Energia's liquid fuel booster the Zenit was developed, which uses a RD-170 variant, the RD-171. While the RD-170 had nozzles which swiveled on two axes, the RD-171's nozzles only swivel on one axis. [2] Models called the RD-172 and RD-173 were proposed, upgrades that would provide additional thrust, and the ...
The Zenit-2 was the first Zenit to be designed for use as an orbital carrier rocket. It consists of two stages. The first uses an RD-171 engine, and an RD-120 engine powers the second stage. It first flew on 13 April 1985, two years before the Energia, due to delays relating to the Energia's development.
Notable examples are the RD-107/RD-108 engines used on the R-7, Molniya and Soyuz rocket families, and the RD-170, RD-171 and RD-180 engines used on the Energia, Zenit and Atlas V launch vehicles. As of July 2013, the company remained largely owned by the federal government of Russia, but RSC Energia owned approximately 14% of the total shares. [3]
The combustion chambers of the RD-180 share a single turbopump unit, much like in its predecessor, the four-chambered RD-170. The RD-180 is fueled by an RP-1/LOX mixture and uses an extremely efficient, high-pressure staged combustion cycle. The engine runs with an oxidizer-to-fuel ratio of 2.72 and employs an oxygen-rich preburner, unlike ...
RD-171 (and its RD-171M successor), -180 and -191 are derivatives of RD-170. RD-0124—a series of oxygen/kerosene engines used in the second stage of Soyuz-2.1b rocket as well as in upper stages of Angara series rockets. YF-100—Chinese engine developed in the 2000s; used on the Long March 5, Long March 6, and Long March 7. [12]
Shahed 171 Shahed Saegheh The Lockheed Martin RQ-170 Sentinel , nicknamed Wraith , [ 2 ] is an American unmanned aerial vehicle (UAV) developed by Lockheed Martin and operated by the United States Air Force (USAF) for the Central Intelligence Agency (CIA).
Merseyside Police said McAteer was captured on CCTV throwing three missiles at police officers on Sussex Road. ... for disorder in Merseyside during last summer's riots now stands at 171, with 129 ...
On the rocket, a single NK-33 engine replaced the Soyuz's central RD-108 engine, and the four boosters of the first stage were omitted. The NK-33A, specifically modified for the Soyuz-2.1v, underwent a successful hot-fire test on 15 January 2013, [ 31 ] following a series of cold-fire and systems tests of the fully assembled rocket conducted in ...