Whitley Strieber seems to be talking about this case in his novel
"The Grays". He doesn't mention it by name but alludes to the
fact that the motors, that operate via mercury being propelled around
a ring at high-speeds, are difficult to maintain and are dangerous
when they malfunction. He feels the civilians witnessed a rescue of
a US government craft that was using the alien-inspired motor.
FWIW
TVgeek
"The Grays". He doesn't mention it by name but alludes to the
fact that the motors, that operate via mercury being propelled around
a ring at high-speeds, are difficult to maintain and are dangerous
when they malfunction. He feels the civilians witnessed a rescue of
a US government craft that was using the alien-inspired motor.
FWIW
TVgeek