From the American rocket Antares, koto was launched to the ISS space truck Cygnus, staff worked two Russian first-stage engine RD-181 produced by NPO " Energomash ", according to NASA.
"The first stage separated", where a commentator said of the start. Thus, the Russian part of the international program launch, the Antares performed, RIA " Novosti ". Rocket with a cargo spacecraft was to be launched from the spaceport at Cape wallops flight facility (Virginia) 20. 03 (03. 03 Moscow time on Monday). 7 hours before the start of the Company that owns the rocket said the postponement of the launch for 24 hours due to the fact that the cable ground equipment did not work properly in the process of pre-flight checks.
The launch of a new modification of the booster, called Antares 230, has been postponed many times since may. American Experts wanted to be safe after what happened in October 2014 of the disaster, when the previous model Antares with engines produced by organizations AeroJet AJ-26 (modified Russian N-33) exploded at the start. New Antares American experts selected the RD-181 Moscow " Energomash ". Khimki company is not more than one year developed, manufactured, conducted the certification and start of deliveries of RD-181 For Antares. The contract for the Manufacture and delivery of eight engines of this model was signed in early winter 2014. In the summer of 2015 the first commercial samples of RD-181 was raised in the United States. Manufacture and supply of RD-181 will be continued According to the terms of the contract. Antares spaceship Cygnus needs to make a cargo flight to the international space station. From the very beginning the 1st launch of the upgraded missiles are expected to be implemented in July but the launch date has been pushed back first to August, then September, then October. A new modification of the rocket, dubbed Antares 230, developed after the disaster in October 2014, when the Antares is equipped with at that moment the engine of the organization "Aerojet" AJ-26 (modified Russian N-33), exploded during launch at the spaceport in Virginia. New Antares equipped with Russian engines RD-181. According to the results of the investigation, the Antares carried out by the firm Orbital ATK, the main cause of the conflict was the rocket engine AJ-26 made on the basis of Soviet NK-33 and modified For the United States the Ukrainian KB " southern ". Orbital ATK is delivering cargo to the ISS under contract with NASA. The firm has carried out five successful flights to the ISS, the contract is guaranteed for at least 12 flights until 2024.