- The term means that wind speed is 5 knots or less. Generally, controllers use the term wind calm.
Aviation dictionary. 2014.
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calm wind — noun Wind that is slower than 3 knots … Wiktionary
calm´ness — calm «kahm, kahlm», adjective, noun, verb. –adj. 1. not stormy or windy; not stirred up; quiet; still: »In fair weather the sea is usually calm. SYNONYM(S): motionless, smooth, placid. 2. Figurative. not excited; peaceful: »Although she was frigh … Useful english dictionary
calm´ly — calm «kahm, kahlm», adjective, noun, verb. –adj. 1. not stormy or windy; not stirred up; quiet; still: »In fair weather the sea is usually calm. SYNONYM(S): motionless, smooth, placid. 2. Figurative. not excited; peaceful: »Although she was frigh … Useful english dictionary
wind rose — /wind/ 1. a map symbol showing, for a given locality or area, the frequency and strength of the wind from various directions. 2. a diagram showing the relation of wind direction to other weather conditions at a given location. [1590 1600] * * * ▪ … Universalium
Calm Air — Calm Air … Википедия
Wind shear — Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere. Wind shear can be broken down into vertical and horizontal components, with… … Wikipedia
calm — [käm] n. [ME & OFr calme < OIt calma < LL (Vulg.: Job 30:30) cauma, heat, heat of the day (hence, in It, time to rest, quiet: see SIESTA) < Gr kauma, heat, esp. of the sun < kaiein, to burn; It sp. infl. by L calere, to be hot] 1.… … English World dictionary
Calm — (k[aum]m), n. [OE. calme, F. calme, fr. It. or Sp. calma (cf. Pg. calma heat), prob. fr. LL. cauma heat, fr. Gr. kay^ma burning heat, fr. kai ein to burn; either because during a great heat there is generally also a calm, or because the hot time… … The Collaborative International Dictionary of English
calm — ► ADJECTIVE 1) not showing or feeling nervousness, anger, or other emotions. 2) peaceful and undisturbed. ► NOUN 1) a calm state or period. 2) (calms) an area of the sea without wind. ► VERB (often … English terms dictionary
Calm Sea and Prosperous Voyage (Mendelssohn) — Calm Sea and Prosperous Voyage (Meeresstille und glückliche Fahrt), Op. 27, is an orchestral concert overture by Felix Mendelssohn inspired by the same verses that inspired Beethoven s 1815 cantata of the same title (and indeed inspired by… … Wikipedia