soaring
A Dictionary of Aviation · 1911 · p. 23
’so:-z1n ». the action of the verb soar; the act or prece of flying easily and lightly upward with or without wing-movement; the action of sailing on the air. automatic soaring, soaring perfermd by an aircraft by automatic means; soarrng by means of selfzactang mechanism, dynamic soaring, soaring which depends upon want of unizfermity of the wind, rn distinction from soaring in a wind which is uniform and has an upward velecztyzcomponent.
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