3 ms·
Not in flight, but Nerva had multiple prototypes built and tested - the longest run being over an hour long. It was cancelled due to politics, not technical via
by kolinko 2y ago
Not in flight, but Nerva had multiple prototypes built and tested - the longest run being over an hour long. It was cancelled due to politics, not technical viability.
https://en.wikipedia.org/wiki/NERVA https://en.wikipedia.org/wiki/NERVA