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AFRA
2 Air Force Regulation (USAF).
3 AF Reserve is called Afres.
4 AESA-fed reflector.
AFRA 1 Active front-end receiver assembly.
2 Aircraft Fleet Recycling Association (US + European
countries).
AFRAA African Airlines Association (Int.).
AfrATC African Air Traffic Conference (Int.).
AFRBA Air Force Review Boards Agency (Andrews
AFB, established 1 June 1980).
AFRC Air Force Reserve Command: (U adds Unit).
AFRCC Air Force Rescue Co-ordination Center.
AFRCU Air/fuel ratio control unit.
AFREA Air Force Real-Estate Agency (Bolling AFB,
established 1 August 1991).
Afres, AFRES Air Force Reserve (Robins AFB, established
14 April 1948).
AFRFW Air Force Research Flying Wing[s].
AFRL Air Force Research Laboratory.
AFROC Air Force Requirements Oversight Council.
AFROTC Air Force Reserve Officers Training Corps.
AFRP Aramid-fibre reinforced plastic[s].
AFRPL Air Force Rocket Propulsion Laboratory
(Edwards AFB).
AFRS Auxiliary flight-reference system.
AFRSI Advanced flexible reusable surface insulation
(Shuttle).
AF/RTL Auto-flight rudder-travel limit.
AFS 1 Aeronautical fixed service (ICAO).
2 Auxiliary Fire Service (UK, WW2).
3 Aerodrome/airport/airfield fire service.
4 Air Force Station, or specialty (USAF).
5 Advanced Flying School (RAF).
6 Automatic, or automated, flight system (ie,
AFCS[1]).
7 Automatic frequency selection.
8 Air Facilities Service (FAA to 1962).
9 Airborne file server.
10 Aviation Flight Standards (FAA division).
AFSA Air Force Services Agency (San Antonio, TX,
established 5 February 1991).
AFSAA Air Force Studies and Analyses Agency
(Washington DC, established February 1991).
AFSAC Air Force Security Assistance Center (Wright-
Patterson AFB).
Afsarc Air Force Systems Acquisition Review Council.
AFSAT See AFSATS.
Afsat Association Française des Sociétés d’Assurance
Transports [aerospace insurance; office, F-75082 Paris]
(F).
Afsatcom Air Force satellite communications.
AFSATS Air Force Security Assistance Training
Squadron (AETC, Randolph AFB).
AFSC 1 Air Force Systems Command (ARDC retitled
1 April 1961; inactivated 1 July 1992 on formation of
AFMC).
2 Air Force Safety Center (Kirtland AFB, AF Safety
Agency renamed 1 January 1996).
3 Air Force specialty code.
4 Aggregate friction surface coat (runway).
5 See AFSPC.
AFSCF Air Force Satellite Control Facility (global
network).
aftercooling
AFSCO Air Force Security Clearance Office
(Washington DC).
AFSD 1 Air Force Space Division, usually called SD,
formed as unit of AFSC 1960, incorporated into AFSPC
1982.
2 Airframe, or aircraft, full-scale development.
AFSE Avionics fast-switched Ethernet.
Afsinc, AFSINC Air Force Service Information and
News Center (Kelly AFB).
AFSK Audio frequency-shift keying.
AFSOC Air Force Special Operations Command,
(Hurlburt Field, Fla., established 22 May 1990).
Afsouth, AFSOUTH Allied Forces, Southern Europe
(Naples).
AFSPA Air Force Security Police Agency (Kirtland
AFB, established February 1991).
AFSPC Air Force Space Command (Peterson AFB,
established 1 September 1992).
AFSS 1 Association Française des Salons Spécialises.
2 Active flutter-suppression system.
3 Advanced fire-support system.
4 Air Force Security Service.
5 Automated flight service station.
AFSTC Air Force Space Technology Center (Kirtland
AFB).
AFT 1 Advanced flying training.
2 Airframe fatigue test.
3 Aft-fuselage trainer.
AFTA 1 Avionics fault-tree analyser.
2 Advanced fuels testing [and] analysis.
Aftac, AFTAC Air Force Technical Applications
Center (Patrick AFB, established 1 May 1960).
AFTC Arabian Fuels Technology Centre [especially
concerned with aviation] (Dubai).
AFTENC Air Force tactical exploitation of national
capabilities.
afterbody 1 Rear part of body, esp of transonic supersonic
or hypersonic atmospheric vehicle.
2 Portion of flying-boat hull or seaplane float aft of
step, immersed at rest or taxiing.
afterbody angle In side elevation, acote angle between
keel of afterbody (2) and (a) undisturbed water line or (b)
longitudinal axis.
afterburn Undesired, irregular combustion of residual
proellant in rocket engine after cut-off.
afterburner Jetpipe equippped for afterburning; in the
case of a turbofan, reheat in the core flow only, see
augmentor.
afterburning Injection and combustion of additional
fuel in specially designed jetpipe (afterburner) of turbojet
to provide augmented thrust. Fuel, usually same as in
engine, burns swiftly in remaining free oxygen in hot
exhaust gas. Downstream of turbine, combustion can
reach temperature limited only by radiant heat flux on
afterburner wall and rate at which fuel can be completely
burned before leaving nozzle. Nozzle must be opened out
in area, with con-di profile to give efficiently expanded
supersonic jet. Can be applied esp. effectively to turbofan
or leaky turbojet, with greater proportion of available
oxygen downstream of turbine. Very effective in supersonic
flight, but less efficient at low speeds and very noisy
(UK = reheat).
afterchine Rear chine along afterbody (2).
aftercooling Cooling of gas after compression, esp. of air
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