the sound barrier was broken for the first time, in a manned level flight on october 14, 1947.
the sound barrier was broken for the first time, in a manned level flight on october 14, 1947.
when was the sound barrier broken for the first time, in a manned level flight?
october 14, 1947
they utilized the information to initiate work on the bell x-1. the final version of the bell x-1 was very similar in design to the original miles m.52 version. also featuring the all-moving tail, the xs-1 was later known as the x-1. it was in the x-1 that chuck yeager was credited with being the first person to break the sound barrier in level flight on october 14, 1947, flying at an altitude of 45,000 ft (13.7 km). george welch made a plausible but officially unverified claim to have broken the sound barrier on 1 october 1947, while flying an xp-86 sabre. he also claimed to have repeated his supersonic flight on october 14, 1947, 30 minutes before yeager broke the sound barrier in the bell x-1. although evidence from witnesses and instruments strongly imply that welch achieved supersonic speed, the flights were not properly monitored and are not officially recognized. the xp-86 officially achieved supersonic speed on april 26, 1948.
sound barrier
in his 1990 book "me-163", former messerschmitt me 163 "komet" pilot mano ziegler claims that his friend, test pilot heini dittmar, broke the sound barrier while diving the rocket plane, and that several people on the ground heard the sonic booms. he claims that on 6 july 1944, dittmar, flying me 163b v18, bearing the "stammkennzeichen" alphabetic code va+sp, was measured traveling at a speed of 1,130 km/h (702 mph). however, no evidence of such a flight exists in any of the materials from that period, which were captured by allied forces and extensively studied. dittmar had been officially recorded at 1,004.5 km/h (623.8 mph) in level flight on 2 october 1941 in the prototype me 163a v4. he reached this speed at less than full throttle, as he was concerned by the transonic buffeting. dittmar himself does not make a claim that he broke the sound barrier on that flight, and notes that the speed was recorded only on the ais. he does, however, take credit for being the first pilot to "knock on the sound barrier."
sound barrier