Assertion: aircraft | /r/CapableOf | break sound barrier
Facets:
value: by traveling at speeds
type: MANNER
value: in level flight
type: TEMPORAL
Source sentences:
text: The first, the Bell X-1, became well known in 1947 after it became the first aircraft to break the sound barrier in level flight.
text: Some aircraft (usually military or experimental) are capable of supersonic flight (breaking the sound barrier) by traveling at speeds faster than sound (1235kph, 768mph).
text: In 1999, Mutke enlisted the help of Professor Otto Wagner of the Munich Technical University to run computational tests to determine whether the aircraft could break the sound barrier.
text: The first ''official'' aircraft to break the sound barrier [ edit ]