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Boris Katorgin, founder of RD-180: "The Raptor's Success is doubtful"

The head of SpaceX Elon Musk declared that  Raptor rocket engine reached an indicator of 268.9 bars and broke the record set by the Russian RD-180 engine. The creator of the rocket RD-180 engine Boris Katorgin, the Global Energy Prize laureate -2012, notes that there is no exact data for the assessment of this achievement.

Commenting on the news about indicators of the new SpaceX engine, the academician Katorgin told: "Before drawing conclusions about results of operation of the engine, it is necessary to receive answers to a number of questions: In what camera the draft was received; how steady is the process of burning? How the camera was cooled at such high heat fluxes, and whether it fulfilled one flight resource or several ones? Only after receiving these indicators, the assessment of results can be given. I hope, Elon Musk will see my questions and will provide full data. I will be glad to enter further debate", - Boris Katorgin noted.

According to NPO Energomash, a pressure in the RD-180 combustion chamber reaches 261.7 Kilogram-force on a square centimeter. The oxygen-kerosene rocket RD-180 engine is used at the first steps of US Atlas carrier rockets. 85 flights of the engine has been already made. Earlier Elon Musk gave appreciation to RD-180 design. He said that using the Russian engine in the American carrier rocket Atlas V has to be a shameful fact for the American producers.

Recall that Boris Katorgin is the famous Russian scientist and the constructor in the field of energy, the academician of RAS (Russian Academy of Sciences). Under his management and with his direct participation the high-efficiency liquid propellant rocket engines (LPRE) were created for peaceful use of Outer Space. He was awarded the Global Energy Prize in 2012 for a cycle of research and development of highly effective liquid rocket engines powered with cryogen fuel to enable reliable functioning of the aerospace system.

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