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Max speed 500 km/h? That means a P-51 could fly around it in circles. Surely it does faster than that? 83.248.81.186 ( talk) 11:40, 11 April 2010 (UTC) reply

500 km/h was the fastest the NM-1 was flown at - remember it was an arodynamic testbed only, and probably wasn't required to go fast. The point of these types of low powered test beds is often to test the low speed handling of a novel layout before flying the definative high-speed aircraft. The RSR was to have engines of about double the power and was expected to reach Mach 2+. Nigel Ish ( talk) 18:54, 3 November 2010 (UTC) reply

What does the RS stand for? Thanks, Maikel ( talk) 10:44, 15 December 2019 (UTC) reply

I think the claim that the aircraft would barrel roll to avoid SAMs is incorrect. Directly from the source we have "To avoid surface-to-air missiles it was restressed to enable the aircraft to make a barrel roll to 42km (137,800ft)." This is very confusing and seems almost like a translation error. Following the source chain from that document leads to a source in Russian that provides "The dynamic ceiling could reach 42 km. Thus, making a "jump" to the dynamic ceiling when passing through the air defense zones of a potential enemy" through Google translation. This implies a temporary zoom climb or arc over SAM sites rather than some manner of roll. Kontakr ( talk) 17:51, 17 August 2020 (UTC) reply