Quote:
Originally Posted by masraum
And per the video that I posted just above you, oil/lubricant that is solid at room temperature and needs to be heated before the motor can be started or the system filled.
Doesn't NASA have one or two that they use for testing of some sort?
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NASA did fly a couple in the 1990’s for research and other things. They also flew a couple variants of the A-12 a couple decades earlier.