DICTIONARY OF AVIATION 121
hand-wheel 'haenc^iuiil n. a uuheel workt by hand, as one of those for warping wings or operating the elevating^plane, at either side of the driver's seat in a monoplane.
hang haerj intr. remain suspended or poised in the air, as a bird or an airship sometimes does or seems to do; be pend- ent; hover.
hangar 'haer^gaz, 'haerjgaz, 'harpz, 'her^gaz, 'erj,gaz n. [also, sometimes, spelt hanger] a shed or house for sheltering balloons or airships; an airship^shed ; an aeroplanesshed.
haiigarward 'haerpz-wazd adv. toward the hangar or aero- plane-shed.
hanger 'haerpz n. that part of a kite to tohich the'guyzline is hung or attacht.
harbor 'haiz-baz n. [also spelt harbour] a place of shelter; a shelterd recess in a coastline fit for use as a port or haven for water^ships.
air harbor, same meaning as airtharbor. earth harbor, same meaning as earthfharbor.
harniattan ,haz'maetn . a dry parching land-wind which blows during December, January, and February on the coast of Upper Guinea in Africa, obscuring the air with clouds of reddish or luhite dust from the desert.
hawk hc:k n. any diurnal bird of prey which is neither a vulture nor an eagle, er, more exclusivly, neither a buzzard, falcon, harrier, nor a kite; a bird of the subfamily Accipi- tinae.
hawk-like 'hc:k,laik adj. [also spelt hawklike] like or re- sembling a hawk; like that of a hawk.
haze heez n. an obscuration of the atmosfere or grayish tint of sky due to particles of dust in the air : especially frequent in dry spells in summer, and, in hot climates, causing the sky to assume even a pea^soup color.
aqueous haze, a haze, or misty appearance of the atmos- fere, due to the presence of aqueous particles (water^parti- cles), and usually having a blue or tuhitish tint according as the particles are small or large; water^haze. cirrus haze, cirro-stratus cloud.
haze-fire 'heez,faiz n. brilliantly luminous haze or mist.
hazeless 'heez-las adj. free from haze; without haze.
head hed n. [also spelt hed]
1. the main part or surface of a kite, such as Tatin's, as distinguisht from the tail or fins.
2. the fore or foremost part or end of an aerofoil, air- ship, or flyer; the part in front of the shoulder; the front.
3. (in aerostatics) the difference of pressure en a unit of base existing between two fluid columns of different den-
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