phugoid

Etymology


The is a  (ultimately from ) + English. The word was (1868–1946) in his book Aerodonetics (1908), the author mistaking the meaning of  to be “flight” in the sense of “the act of flying”: see the quotations.

The is derived from the adjective.

Adjective

 * 1)  Of the motion of an aircraft, missile, or other flying object: continuously oscillating in a vertical plane due to the object pitching up and climbing, thus slowing down; then pitching down and descending, thus speeding up.

Translations

 * Finnish: fugoidi-, korkeus-nopeusheilahtelun omainen
 * Macedonian:

Noun

 * 1)  The motion of an aircraft, missile, or other flying object continuously oscillating in a vertical plane due to the object pitching up and climbing, thus slowing down; then pitching down and descending, thus speeding up.

Translations

 * Arabic: فوغويد
 * Chinese:
 * Mandarin: 起伏運動, 週期運動
 * Finnish: fugoidi, fugoidiliike, korkeus-nopeusheilahtelu
 * French:
 * German:
 * Italian: fugoide
 * Japanese: フゴイド運動
 * Korean: 푸고이드
 * Macedonian:
 * Romanian: fugoidă
 * Russian: фуго́ид
 * Spanish: fugoide
 * Swedish: phugoidrörelse, fugoidrörelse