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A/E/R
cross-sections at start of diffuser to down-stream end at
first bend.
A/E/R Ailerons, elevators, rudder.
AERA 1 Association pour l’Etude et la Recherche
Astronautique et Cosmique (F).
2 Automated en-route ATC.
Aerad Commercially published but universally used
flight guide and chart system (UK).
Aerall Association d’Etudes et de Recherches sur
Aéronefs Allégés (F), since 2003 Air and Space.
aeration Contamination of fuel by bubbles of gas, e.g.,
air.
AERC Aviation Education Resource Center (US).
AERE Atomic Energy Research Establishment
(UKAEA, Harwell).
aerial 1 Pertaining to aircraft, aviation or atmosphere.
2 Part of radio or radar system designed to radiate or
intercept energy, with size and shape determined by wavelength,
directionality and other variables (US = antenna).
aerial array Assembly of aerial elements, often identical,
usually excited from same source in phase and dimensioned
and positioned to radiate in pencil beam or other
desired pattern (not necessarily phased-array).
aerial common sensor Next-generation airborne sensor
for tactical reconnaissance, Imint and Sigint (USA).
aerial delivery system Complete system for air transport
and delivery to surface recipient (usually without aircraft
landing).
aerial supervision module Aircraft housing both air attack
and leadplane pilot.
aerial survey Use of aerial cameras and/or other
photogrammetric instruments for the making of maps,
charts and plans.
aerial swimming vehicle A micro air vehicle with major
dimensions not exceeding 150 mm (c6 in), able to cruise at
c10 ms -1 propelled by aft-mounted reverse-camber flapping
wings. Generally synonymous with delphinopter.
aerial work General aviation for hire or reward other
than carriage of passengers or, usually, freight; includes
agricultural aviation, aerial photography, mapping and
survey, cable and pipeline patrol and similar duties
usually not undertaken to full-time fixed schedule.
aerial work platform Small railed platform for one or
two occupants, mounted on vehicle by Z-type [less often
scissors] elevating linkage and often providing electric or
hydraulic power for occupants.
AERO Air Education and Recreation Organisation
(UK, office Camberley).
aero Concerned with atmospheric flight.
aeroacoustics Science and technology of acoustics
caused by, and effect upon, aerospace systems. A more
general definition is interaction between sound and gas
flow, esp. sound generated by the flow.
aeroballistics Science of high-speed vehicles moving
through atmosphere in which both ballistics and aerodynamics
must be taken into account. Often asserted
aerodynamics and ballistics are applied separately to
different portions of flight path, but both act as long as
there is significant atmosphere present.
Aerobatic catalogue Derived from Aresti, simplified
scheme for planning and scoring aerobatic routines
(FAI).
aerobatic oil system In modern combat aircraft liable to
experience prolonged zero-g, meaning is lube system with
aerodynamic balance
multiple scavenge ports round all engine bearing
chambers leading back to tank in which synthetic gravity
is maintained by rapid rotation.
aerobatics Precise and largely standardised
manoeuvres, unnecessary in normal flight, executed to
acquire or demonstrate mastery over aircraft, for entertainment,
or for competition (US = acrobatics). BS:
“Evolutions voluntarily performed other than those
required for normal flight”, which would include a gentle
360.
aerobic propulsion Requiring oxygen.
aerobiology Study of distribution and effects of living
matter suspended in atmosphere (small insects, spores,
seeds and micro-organisms).
aerobrake 1 Aerodynamic brake for use in extremely
low-density atmospheres at Mach numbers of 5 to 25.
Typically can be deployed as a saucer shape, concave side
facing direction of travel.
2 Deceleration by holding nose high after landing.
Aero-C Message and data-reporting satellite service for
satcom aircraft.
aerocapture Technique harnessing drag of atmosphere
of planet (especially Mars) to slow spacecraft to planetary
orbital speed.
Aeroclinoscope Instrument with semaphore-like arms
for indicating wind direction [and, roughly, atmospheric
pressure] (obs.).
aeroconical canopy Form of parachute canopy suitable
for use at all aerospace Mach numbers.
aerocryptography Representation of aerobatic
manoeuvres by 2-D symbols.
aerodone Basic aerodyne, glider relying upon natural
stability and having no moving control surfaces.
Examples are paper dart and chuck glider, most simple
free-flight models, and aeroplanes which continue to fly
after being abandoned by their crews.
aerodonetics Science of gliding flight, with or without
use of control surfaces.
aerodontalgia Toothache caused by major changes in
ambient atmospheric pressure.
aerodontia, aerodontology Branch of dentistry dealing
with problems of flying personnel.
aerodrome BS.185, 1940: ‘A definite and limited area of
ground or water (including any buildings, installations
and/or equipment) intended to be used, either wholly or
in part, in connexion with the arrival, departure and
servicing of aircraft.’ Becoming archaic (see airfield,
airport, air base, strip, etc).
aerodrome elevation Airfield elevation.
aerodrome FIS Airfield FIS.
aerodrome traffic zone Airspace up to 2,000 ft (609 m)
a.a.l. and within 2.5 nm of centre of longest runway or
2,000 ft/609 m of boundary (general aviation). Permission
req d for entry, and for manoevering within*.
aerodynamic axis Imaginary line through aerodynamic
centres of every longitudinal element in solid body moving
through gaseous medium. In wing, runs basically from tip
to tip, but in swept or slender delta can be an acutely
curved, kinky line often having little practical application.
aerodynamic balance 1 Method of reducing controlsurface
hinge moment by providing aerodynamic surface
ahead of hinge axis (see Frise aileron, horn balance).
2 Wind-tunnel balance for measurement of aerodynamic
forces and moments.
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