phugoid

listen to the pronunciation of phugoid
Английский Язык - Турецкий язык
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Английский Язык - Английский Язык
An aircraft motion where the vehicle pitches up and climbs, increasing speed, and then pitches down and descends, decreasing speed
(Havacılık) A phugoid is an aircraft motion where the vehicle pitches up and climbs, and then pitches down and descends, accompanied by speeding up and slowing down as it goes "uphill" and "downhill." This is one of the basic flight dynamics modes of an aircraft (others include short period, dutch roll, and spiral divergence)