geography /di.r.fi/ noun .
physical geography the study of the Earth’s surface and its features
geometric /di.metr.k/ adjective
referring to geometry . A triangle is a geometric figure. . Geometric pitch (US) is the distance which a propeller should move forward in one revolution.
geometry /di.m.tri/ noun 1. the
study of the properties, measurement, and relationships of points, lines, angles, surfaces, and solids . An under-standing of geometry is essential to the student of navigation. 2. a configuration or arrangement . the geometry of the engine nacelle
geostationary /di.υ
ste..(.)n(.)ri/ adjective referring to an object, such as a satellite in space, which rotates round the Earth at the same speed as the Earth and is therefore stationary with reference to a point on the Earth . There are two main types of satellite that are used for collection and
105 governor
transmission of meteorological data, polar and geostationary.
geostrophic wind /di.υstr.f.k
w.nd/ noun a wind which blows hori-zontally along the isobars, across the surface of the earth
GFT abbreviation general flying test GHz abbreviation gigahertz giga-/../ prefix one thousand mil-
lion. Symbol G
gigahertz /..hts/ noun a fre-quency of 109 Hertz. Abbreviation GHz given /.v(.)n/ adjective 1. particu-
lar, specified, fixed . At high altitudes, less fuel is consumed for a given air-speed than for the same airspeed at a lower altitude. 2. . given (that) taking into account, considering . Given the condition of the engine, it is surprising that it starts.
glare /le./ noun a strong blinding light . Glare can be caused by diffuse reflection of sunlight from the top of a layer of fog.
glass fibre reinforced plastic
noun a composite material made of plastic which is strengthened by glass fibres, used in the manufacture of air-frames and other aircraft components. Abbreviation GRP
glide /la.d/ verb to fly without power
. In the event of an engine failure, it is important to have enough altitude to be able to glide clear of houses, people, etc.
glidepath /la.dpɑθ/, glide path
noun a path followed by the aircraft down the glide slope . glidepath cov-erage the vertical and horizontal dimensions of the glide slope radio beam
glider /la.d./ noun a fixed wing aer-oplane, normally with no power plant propulsion . Nowadays, gliders are often made of composite materials.
glideslope /la.dsl.υp/, glide slope noun the part of the ILS which provides a radio beam at an angle of approximately 3° to the point of touch-down from the outer marker thus giving the pilot information about the height of the aircraft on final approach
gliding /la.d../ noun 1. flying in a glider . gliding club association of members who fly gliders as a pastime 2. flying in a powered aircraft with the engine either switched off or idling .
The best gliding speed for the aircraft is 75 knots.
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