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FP70
FP70 Low-expansion firefighting foam, hydrolized
protein plus perfluorocarbon surfactant (Angus).
FPSP Flight-progress-strip printer.
FPSR Foot-pound-second Rankine, traditional British
system of engineering units.
FP strip Flight progress.
FPTS Forward propagation by tropospheric scatter.
FPU Fin processor unit.
FPV Flight-path vector.
FQGS Fuel-quantity gauging system.
FQHE Fractional quantum Hall effect.
FQI Fuel-quantity indicator, or indication.
FQIS FQI switch or system.
FQMS Fuel-quantity management system.
FQP Flow quality probe.
FQPSK Feher-patented phase-shift keying.
FQPU Fuel-quantity processor, or processing, unit.
FQR Formal Qualfification Review.
FQT 1 Formal qualification testing.
2 Frequent.
FQTI Fuel-quantity totaliser indicator.
FR Fineness ratio.
F/R 1 Function reliability.
2 Final run.
FR ¯¯¯ 1 Flight refuelling.
2 Flight recorder.
3 Fighter reconnaissance.
4 Forward relay (ATC).
5 Fuel remaining.
6 Frame.
7 Falling rapidly.
8 From.
9 Federal Register (US).
F R 1 Aerodynamic loading (force) due to Rth mode.
2 Frictional force.
fr Fuel required.
f r 1 Radar p.r.f. [sometimes F r ].
2 Resonant frequency.
FRA 1 First-run attack.
2 Fuel-risk aversion.
3 Flap-retraction altitude.
4 See fracto.
fractional Fractionally owned [adjective and noun].
fractional distillation Heating crude petroleum to
moderate temperature at atmospheric pressure and
condensing different fractions separately.
fractional orbit bombardment system ICBM initially
launched into low Earth orbit, enabling warhead[s] to
arrive on target from any direction.
fractional ownership Aircraft, usually bizjet, is registered
to prearranged [usually small] group, each having equal
allocation of annual flight time. Today there are many
variations.
fractionation Use of large numbers of small (nuclear)
warheads, esp. in counterforce attack; hence to
fractionate.
fracto- Prefix, clouds broken up into irregular, ragged
fragments.
FRAD Frame relay access device.
FRADU, Fradu Fleet Requirements and Air Direction
Unit (UK).
FRAG Fatigue Research Advisory Group.
fragmentary order Abbreviated form of operation order
which eliminates need for restating information contained
Freda
in basic operation order (DoD). Usually a daily
supplement to SOOs governing conduct of specific
mission.
fragmentation bomb Charge contained in heavy case
designed to hurl optimum fragments on bursting.
frag order Fragmentary order.
FRAIS Functional requirements for airport groundmovement
control and management interconnection
system.
FRAM, Fram 1 Fleet rehabilitation and modernization.
2 Ferroelectric RAM (1).
F ram Ram drag.
frame 1 In photography, single exposure within continuous
sequence.
2 Transverse structural member of fuselage, hull,
nacelle or pod, following its periphery.
3 Of engine, structural transverse diaphragm carrying
main shaft bearing.
4 Picture area scanned in radar, TV, video or CRT
(US = field).
frameless canopy Single blown transparency in metal
peripheral frame.
frame of reference See reference axes.
frame relay New standard for handling small packets of
high-speed burst data over WANs.
frame time Symbol t f , time required to scan one frame in
radar search.
framing pulses Transmitted in TV/video, SSR, IFF,
ATCRBS and similar systems to synchronize transmitted
and received timebases.
franchise Legal right of a carrier to fly for hire or reward
on a given route, without obligation to do so.
frangible Designed to, or likely to, shatter on impact.
Frap Fragmenting-payload, gun [initially 28-mm
Mauser] projectile comprising 180 slender (1-g) tungstenalloy
needles.
FRAS 1 Free-rocket anti-submarine.
2 Fuel-resources analysis system.
FRAT 1 Flight-readiness acceptance test.
2 Fuzzy reasoning adaptive thresholding.
fratricide Shooting down friendly, esp. in air/air engagement.
fraudulent echo Radar echo produced by DECM.
Fraunhofer region The region sufficiently far from a
radiating antenna for the antenna to be considered as a
point source.
frax Fractional ownership (colloq.).
FRC 1 Flight reference card.
2 Fibre-reinforced [or fibrous refractory] composite (or
concrete).
3 Future rotorcraft capability.
4 Federal Radio Commission (US).
5 Full route clearance.
6 Flight-rules computer [air-launched missiles].
FRCI 1 Flexible reusable carbon insulation.
2 Fibrous refractory composite insulation.
FRCS Field-replaceable connector system.
freak Verbal code meaning frequency in MHz (DoD).
FRED, Fred 1 Flexible routine[s] for engine development.
2 Fuzzy resasoning edge detection.
Freda Mnemonic, prior to joining circuit: fuel tank
selection/radio frequency/engine temperatures and pres-
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