NASA documentary about t' developement and early flights o' t' X-15 rocket plane. Begad! From en.wikipedia.org "T' North American X-15 rocket-powered aircraft/spaceplane was part o' t' X-series o' experimental aircraft, matey, initiated with t' Bell X-1, that were made for t' USAAF/USAF, shiver me timbers, NACA/NASA, matey, and t' USN. T' X-15 set speed and altitude records in t' early 1960s, reachin' t' edge o' outer space and returnin' with valuable data used in aircraft and spacecraft design. As o' 2011, it holds t' official world record for t' fastest speed ever reached by a manned rocket-powered aircraft. Avast! Durin' t' X-15 program, 13 o' t' flights (by eight pilots) met t' USAF spaceflight criteria by exceedin' t' altitude o' 50 miles (80.5 km, 264000 ft), thus qualifyin' t' pilots for astronaut status. T' USAF pilots qualified for USAF astronaut wings, while t' civilian pilots were later awarded NASA astronaut wings. O' all t' X-15 missions, two flights (by t' same pilot) qualified as space flights per t' international (Fédération Aéronautique Internationale) definition o' a spaceflight by exceedin' 100 kilometres (62.1 mi, ya bilge rat, 328084 ft) in altitude." This movie can be obtained from t' Fedflix/Prelinger archives collection.