Initial Operational Capability (IOC): 2015
Total Production: 60
Unitary Cost: USD$50 million
Origin: Russia
Corporations: NPO Energomash
Parent System: RD-180
Initial Operational Capability (IOC): 1999
Total Production: 161
Family Members: RD-180
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Description: The RD-181 is a liquid fuel space rocket developed based upon the RD-191 rocket engine to power the first stage of the United States Orbital Antares medium class space launch vehicle. Each Antares rocket uses two RD-181 engines at its first stage as replacement for two Soviet NK-33 engines in the original design. The Antares mission on October 28, 2014, crashed resulting in the development of an upgraded Antares utilizing the more reliable RD-181 dual-engine layout. The new engine was developed independently by Energomash combining the RD-191 engine technologies and the RD-180 engine family reliability. Energomash and Orbital signed a contract for the supply of up to 60 RD-181 engines for the Antares program on December 17, 2014. So far a $1 billion contract is in place for 20 engines with two contract options for 20 engines each. The first launch of the upgraded Antares rocket equipped with RD-181 engines is scheduled for late 2015 and the entry into service of the RD-181 powered Antares in 2016.

RD-181 Applications

Space Systems Antares

RD-181 News

There are 2 news between
16 Jan 2015 and 15 Oct 2016
Saturday, October 15, 2016US to Buy Additional RD-180 and RD-181 Russian Space Rocket Engines
Friday, January 16, 2015Russia, US Sign Contract on RD-181 Rocket Engine Deliveries

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