Quote:
Originally Posted by Neal Stevens
Our backward march continues... hey, Russia, can you help us with our rockets? We don't have any more German scientists from WWII.
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Well...Russia could be part of the problem. As far as I understand it, these rocket engines being used in Cygnus are old refurbished engines from the Soviet N1 moon rocket program.
They have had some issues with failures during testing in the past. One for example determined to be caused by "kerosene fuel leak in engine manifold due to stress corrosion cracking of the 40 year old metal". Here's a Popular Mechanics article if you want to read more.
http://www.popularmechanics.com/scie...aunch-14991680