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It was in the X-1 that Chuck Yeager became the first person to break the sound barrier in level flight on 14 October 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 ...
Through the NACA program, he became the first human to officially break the sound barrier on October 14, 1947, when he flew the experimental Bell X-1 at Mach 1.05 at an altitude of 45,000 ft (13,700 m), for which he won both the Collier and Mackay trophies in 1948. He then went on to break several other speed and altitude records in the ...
At a speed of about 767 miles per hour, depending on temperature and humidity, a moving object will break the sound barrier. It was not until World War II, when aircraft started to reach the ...
Robert Kempel, author of The Race For Mach 1 contradicts the claim, contending for Welch's aircraft to break the sound barrier with an underpowered engine was impossible. He notes that the XP-86 airframe was capable of transonic flight, but the interim low-power J35-C-3 limited its performance.
Herbert Henry Hoover (May 18, 1912 – August 14, 1952) [1] was an American NACA experimental test pilot who, on March 10, 1948, became the first civilian and second person to break the sound barrier, [2] a feat for which he was awarded the Air Medal "for meritorious achievement while participating in aerial flight."
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Israeli warplanes broke the sound barrier over Beirut and other areas of Lebanon on Tuesday, Lebanese security sources and media reported, rattling nerves as the conflict between the Iran-backed ...
BEIRUT (Reuters) -Israeli warplanes broke the sound barrier three times over Beirut in less than 30 minutes on Tuesday, leading to loud booms that sent people in the city running for cover just ...