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aeroflight mode
or from sea-level to pressure corresponding to altitude
greater than 30,000 ft (about 10,000 m). Potentially fatal
if original, increased, pressure is not rapidly restored.
aeroflight mode Atmospheric flight, by aerospace
vehicle (eg, Space Shuttle).
aerofoil (US = airfoil) 1 Solid body designed to move
through gaseous medium and obtain useful force reaction
other than drag. Examples: wing, control surface, fin,
turbine blade, sail, windmill blade, Flettner rotor, circular
or elliptical rotor blade with supercirculation maintained
by blowing. Some authorities maintain * must be essentially
‘wing-shaped’ in section.
2 A specific meaning is a gas-turbine rotor blade,
without root, for fusion to a ring or disc.
aerofoil section Traditionally, outline of section through
aerofoil parallel to plane of symmetry. This must be modified
to ‘parallel to aircraft longitudinal axis’ in
variable-sweep and slew wings, and ‘perpendicular to
blade major axis’ in blades for rotors, turbines and
propellers. None of these sections may lie even approximately
along direction of relative wind, although usually
assumed to. Also called profile.
aerofoil boat Wing-shaped surface-effect marine craft
(or low-altitude aircraft).
aerogel Colloid comprising solution of gaseous phase in
solid phase or coagulated sol (colloidal liquid).
aerograph Airborne meteorological recording instrument;
aerometeograph.
Aero-H Long-haul cockpit and pax communications,
telephony (9.6 kbps), fax (4.8) and data (2.4). H + offers
voice codes and better multichannel performance for
oceanic use.
Aero-I Short-/medium-haul and corporate communications,
telephony (4.8 kbps) and fax/data (2.4).
aero-isoclinic wing Aerofoil which, under aeroelastic
distortion, maintains essentially uniform angle of incidence
from tip to tip.
Aero-J Medium-gain satcom service for continental
use.
aerojumble Aeronautical artefacts in jumble sale.
Aero-L Low-gain satcom service, two-way data
exchange at 0.6 kbps.
Aerolite Trade name, low-density bonded sandwich
structure based on phenolic-resin-bonded flax fibres
(Aero Research, later CIBA).
aerolite Stony meteorite, richer in silicates than metals.
aerology Study of atmosphere (meteorology) other than
lower regions strongly influenced by Earth’s surface.
aerol strut Early oleo strut relying for energy absorption
and damping upon both air and oil.
Aero-M Single-channel satcom service.
aerometeograph, aerometeorograph Airborne instrument
making permanent record of several meteorological
parameters such as altitude, pressure, temperature and
humidity.
aerometer Instrument used in determining density of
gases, esp. atmosphere.
aero mission gear Video and data communications
package for helicopters.
aeronaut Pilot of aerostat.
Aero Mini-M Service for small corporate and GA,
2.4 kbps data, fax and voice.
aeronautica Aeronautical artefacts, esp. those in auction
sale.
aeropause
aeronautical Pertaining to aeronautics.
aeronautical chart Chart prepared and issued primarily
for air navigation. Chief categories include Sectional
(plotting), Regional, Radio, Flight Planning, en-route
low and high altitude, SID, STAR, TMA, IAP, Great
Circle and Magnetic. Most are to conformal projection
(esp. Lambert’s); non-aeronautical topographic features
generally excluded.
aeronautical Earth station Satcom or navsat station in
an aircraft.
aeronautical fixed service Network of ground radio
stations.
aeronautical fixed telecommunications, network
National teleprinter network outputting weather forecasts,
airfield status and flight plans.
aeronautical ground station Satcom or navsat station on
Earth’s surface (conceivably, on ship).
Aeronautical Information Circular Official publication
printed on white paper [admin. matters], green [maps and
charts], pink [safety issues], yellow [operations and facilities]
and mauve [temporary changes, esp. airspace
restrictions] (UK CAA).
Aeronautical Information Documents Unit Produces all
flight-planning documents for UK military aircrew (RAF
Northolt).
aeronautical information overprint Overprint on military
or naval map or chart for specific air navigation purposes.
Aeronautical Information Publication Periodically
issued for all civil pilots by national aviation authorities,
UK being titled A.I.Circular, see above.
aeronautical light, beacon Illuminated device approved
as aid to air navigation.
aeronautical mile Nautical mile (British Admiralty
standard 6,080 ft = 1.85318 km); defined as length of arc
of 1° of meridian at Equator.
aeronautical mobile service Voice radio linking aircraft
and ground stations. AMS(R) serves routes [generally
means airways] while AMS(OR) serves off-route airspace.
aeronautical multicommunications See multicommunications
service.
aeronautical satellite Satellite provided to assist aircraft
by improving navigation, communications and traffic
control. Abb. aerosat.
aeronautical topographic chart/map Chart or map
designed to assist visual or radar navigation and showing
features of terrain, hydrography, land use and air navigation
facilities.
aeronautics Science of study, design, construction and
operation of aircraft.
Aéronavale Air arm of French Navy.
aéronef Aircraft, any species (F).
Aeronet Secure closed-community information net, not
linked to Internet (SITA).
aeroneurosis Chronic disorder of nervous origin caused
by prolonged flying stress.
aeronomy Study of upper atmosphere of planets with
especial reference to effects of radiation, such as dissociation
and ionisation.
aeropause Vague boundary between atmosphere useful
to aircraft, and space where air density is too low to
provide lift, or air for air-breathing engines, or aerodynamic
forces for stability and control. One definition
suggests boundary is layer from “12 to 120 miles”; upper
limit meaningful for hypersonic aircraft only.
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