Meaning of boomless cruise | Babel Free
Definitions
A technique for supersonic flight where the sonic boom does not reach the Earth's surface, by taking advantage of atmospheric conditions to refract the shockwave upwards, away from the ground.
countable, uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.