It's possible to make rocket engines able to perform for quite a long time. http://www.lpre.de/sntk/NK-33/tests.htm http://www.lpre.de/sntk/NK-33/tests.htm В

It's possible to make rocket engines able to perform for quite a long time. http://www.lpre.de/sntk/NK-33/tests.htm http://www.lpre.de/sntk/NK-33/tests.htm В 1976 г. один из двигателей первой ступени НК-33 вместо 140 с, требуемых техническим заданием, проработал на стенде 14.000 с. In 1976 one of NK-33 rocket engines instead of 140 seconds required by the specification run on the test stand for 14,000 seconds.