1Dk4eXg

Alert
Alert 1 Attack [and] launch early response [or reporting]
to theater (USAF).
2 Air-launched extended-range transporter.
alert 1 Specified condition of readiness for action, esp.
of military unit.
2 Warning of enemy air attack.
3 ATC action taken after 30 min “uncertainty” period
(5 min in case of aircraft previously cleared to land) when
contact cannot be established.
4 Response by manufacturer and/or certifying
authority to unacceptable incidence of service failures by
hardware item.
alert area Airspace which may contain high volume of
pilot-training activities or unusual type of aerial activity
(FAA).
Alerte Anti-aircraft laser enemy ranging and targeting
equipment.
Alerter Hand-held device which vibrates/flashes to warn
deaf people [e.g., staff, pax] of fire.
alerting centre Centre designated by appropriate
authority to perform functions of RCC where none exists
(BS.185).
alerting service Service provided to notify and assist all
appropriate organisations capable of aiding aircraft in
need of search or rescue.
alert-level standard Agreed reliability performance
below which special and urgent action must be taken (eg
0.3 IFSD per thousand engine hours).
alerting unit Encoding-altimeter device which, in
potentially dangerous flight conditions, triggers a
warning.
alert phase Aircraft seriously overdue.
Alerts Airborne-laser EW receiver training system.
ALES 1 Autonomous Link-Eleven system.
2 Electro-exploded aluminium, an exxceedingly fine
powder (IR flares).
Alex 1 Automated launching of expendables (EW).
2 Electro-exploded aluminium, an extremely fine
powder (IR flares).
ALF 1 Auto/lock-follow (target tracker).
2 Auxiliary landing field.
3 Aloft.
4 Airborne, or adaptive, or advanced, low frequency;
EAS adds electro-acoustic sonar, S sonar.
Alfa, ALFA Aéroports de langue Française associés.
Alfed Aluminium Federation [office, Birmingham B15
1TN] (UK).
Alfens Automatic, or advanced, low-flying entry, or
enquiry, notification system (UK NATS/MoD).
Alfensops Automated low-flying and flight-planning
enquiry and notification system operations centre (UK).
ALFH Advanced lightweight flying helmet.
Alflex Automatic-landing flight experiment (J).
ALFS Airborne, or air-dropped, low-frequency sonar.
ALG 1 Autonomous landing guidance.
2 Advanced landing ground.
3 Along.
4 Also Ali, altimeter.
AlGaAs Aluminium/gallium arsenide.
algae Primitive plants (thallophytes) which elaborate
food by photosynthesis, investigated as human food for
extended space travel.
algal corrosion Degradation caused by algae and other
ALJS
microorganisms, especially those dwelling at fuel/air
interface.
Algol Algorithmic language.
algorithm 1 Established method of computation,
numeric or algebraic.
2 Computation with steps in preassigned order, usually
involving iteration, for solving particular class of
problem.
ALGP Aviation Loan Guarantee Program (US, post
11–9).
ALH 1 Advanced light helicopter.
2 Active laser homing.
ALI 1 Advanced land imager.
2 Automatic line integration.
3 Aegis Leap intercept.
4 Aerospace Lighting Institute (US).
5 Air/land integration.
ALIA International Association of Lawyers Jurists &
Experts in Air Law [office, Rome].
aliasing Wide variety of errors possible when breaking
down image into pixels, such as irregular edges or
tendency of small polygons to blink on/off; hence anti-*.
ALIC 1 Aerodrome/airfield/airport locator indicator
code.
2 Aircraft launcher interface computer.
Alicat Advanced long-wave IR circuit and array technology.
Alice 1 Air-launched integrated countermeasure[s],
expendable.
2 Alcatel integrated control environment.
alidade Optical sight [microscope or telescope] used to
read linear scale on mensuration system.
alien interference On weather radar, by other radars in
scanning area.
alight To land, esp. of marine aircraft on water.
alighting channel Part of water aerodrome navigable
and cleared for safe alighting or taking off.
alighting gear See landing gear.
align 1 In INS, to rotate stable platform before start of
journey until precisely aligned with local horizontal and
desired azimuth.
2 In radio, radar or other equipment having resonant
or tuned circuits, to adjust each circuit with signal generator
to obtain optimum output at operating frequencies.
3 Normal meaning of word is relevant to erection of
airframe jigging, lasers often being used when structures
are large.
aligned mat Intermediate semi-prepared composite
structure in which strong and/or stiff reinforcing fibres
(rarely whiskers) are arranged substantially parallel in
two-dimensional mat.
alignment time In INS or guidance system, minimum
time required to spool-up gyros and align platform,
preparatory to allowing significant movement of vehicle.
ALIMS Automatic laser inspection and measurement
system.
ALIS, Alis 1 Airline interactive services.
2 Airport luggage identification system.
3 Autonomic logistics information system.
Alithalite Range of medium-density general-purpose
Al-Li alloys (Alcoa).
ALJEAL, Aljeal Association of Lawyers, Jurists and
Experts in Air Law (Int.).
ALJS Airborne-laser jamming system.
40