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ROCKET SCIENCE
US to Buy Eight Russian RD-181 Rocket Engines
by Staff Writers
Moscow (Sputnik) Mar 15, 2016


The RD-181 deal is the second large-scale deal Energomash has made with a US company.

The US company Orbital Sciences Corporation will procure eight Russian-made RD-181 rocket engines, Russia's space and rocket engine company, Energomash, said Wednesday.

"Orbital Sciences Corporation decided to realize the option for the procurement of eight RD-181 liquid rocket engines from Energomash. The option is to be realized within a contract signed in 2014 on the RD-181 delivery for use in the first stages of the carrier rockets Antares [produced] by Orbital Corporation," the Energomash's statement reads.

The Russian manufacturer added that last month representatives of the US company visited Russia and highly estimated the quality management system in place at Energomash.

In 2015, Energomash delivered four such engines to the United States, according to the statement.

At the time of signing the contract worth around $1 billion in December 2014, Orbital said they had looked at several other propulsion providers but had decided to use the RD-181 engines because the Russia-designed engine offered "the best combination of schedule availability, technical performance and cost parameters as compared to other possible options."

The RD-181 deal is the second large-scale deal Energomash has made with a US company. In the late 1990s, the company won a contract with United Launch Alliance to supply RD-180 engines for Atlas rockets. This contract, also valued at about $1 billion, is still in place.

The US imposed sanctions on Russia on the pretext of the Donbass conflict and the purchase of the engines was prohibited; however, Washington had to remove them from the list as they proved indispensable for US space flights.

Despite repeated calls by many on Capitol Hill to stop buying rocket engines from Russia, the United States currently has no domestically-made analogues to the RD-181s.

The hard fact is, however, that finding a replacement for the Russian engines is easier said than done.

Defense Undersecretary Frank Kendall, the Pentagon's chief arms buyer, earlier said that the development of a certified US replacement for the RD-181 would take at least five more years.

It was questionable whether the United Launch Alliance (ULA) could survive if the US military immediately stopped using the Russian engines.

US worries over the use of Russian rocket engines heightened after an Antares rocket, powered by a US-modified Soviet engine, blew up seconds after liftoff in October 2014.

Russian manufacturers then blamed the mishap on the US modifications of the NK-33 engine.

This dependency has sparked waves of concern in US government and aerospace circles amid heightened tensions between the United States and Russia.

John McCain, chairman of the Senate Armed Services Committee, and a fervent opponent of rocket engine purchases from Russia, announced during a hearing in January that he would introduce a bill aimed at ending the use of Russian rocket RD-181 engines.

Source: Sputnik News

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