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SLAM
SLAM 1 Supersonic low-altitude missile.
2 Standoff land attack missile [ER adds extended range
or expanded response].
3 Scanning laser acoustic microscopy.
Slam RAAM surface-launched advanced mediumrange
AAM, ie SL-Amraam. Suggest confusion with
Slammer.
slam acceleration Most rapid possible acceleration of
engine, esp. gas turbine, typified by violent forward movement
of power lever to limit. Hence, slam deceleration.
Slammer Amraam, or especially aircraft armed with live
Amraams.
slamming Impact of front or rear wheels (depending on
design geometry) of bogie on ground at vertical velocity
greater than that of aircraft, caused by added velocity
imparted by rotation of bogie beam.
Slammr Sideways-looking airborne multimission radar.
Slam-R Small lightweight airborne MTI-radar.
Slams Surface look-alike mine systems.
slant course line Intersection of course surface and plane
of nominal ILS glidepath.
slanted deck Angled deck.
slant range LOS range between aircraft (aerial target)
and fixed ground station; not same as range plotted on
map, hence ** correction to radio navaid distances which
is small until aircraft height is greater than 20% of **.
slant visual range SVR (1).
SLAP 1 Saboted light-armour penetrator.
2 Slot-allocation procedure.
3 Service-life, or structural life, assessment program.
slap See rotor *.
SLAR Side[ways]-looking airborne, or aircraft, or aperture,
radar.
slash Radar beacon reply presented as a short line on
display.
slash mark Oblique stroke /.
slash rating 1 For electric machines and other accessories,
normally 150% of base load.
2 More generally, any special increased rating of an
engine or other machine, printed to right of a slash mark.
SLAT, Slat 1 Slow, low, airborne target.
2 Supersonic low-altitude target.
3 Ship-launched air [or aerial] target.
slat 1 Movable portion of leading edge of aerofoil, esp.
wing, which in cruising flight is recessed against main
surface and forms part of profile; at high angle of attack
either lifts away under its own aerodynamic load or is
driven under power to move forward and down and leave
intervening slot.
2 Fixed leading-edge portion of aerofoil, either wing or
tailplane (in latter case often inverted, lying along underside),
forming slot ahead of main surface. Both (1, 2)
postpone flow breakaway at high AOA and thus delay
stall.
Slate Small lightweight altitude-transmitting equipment,
beacon for GA (FAA 1961).
slatted Fitted with a slat (1, 2).
slave 1 See slaving.
2 See slave station.
3 Adjective descriptive of any item installed in an
aircraft purely to check the dimensions and interface
connections; hence * engine, * APU, not intended to be
operated.
Slave actuator Actuator, usually ballscrew, forming one
sleeve target
of a number transmitting motion originating at a remote
power source. Distributed along wing to move flaps, and
around engine to move reverser blocker doors.
slave aerial Mechanically scanned aerial slaved to
another, eg SSR slaved to surveillance radar but offmounted.
slaved gyro One whose spin axis is maintained in alignment
with an external direction, eg magnetic N or local
vertical.
slave engine In a multi-engine aircraft with engines
synchronized, all engines other than the master.
slave landing gear Temporary landing gear used in
factory to move incomplete aircraft.
slave shaft Short shaft on which rotating item is
temporarily mounted (possibly loosely) when perfecting
balance.
slave station Radio station whose emissions are
controlled in exact synchronization or phase with a
master station at different geographical location.
Slavianoff System of arc welding using metal wire or rod
as positive electrode.
slaving 1 To constrain a body to maintain an attitude in
exact alignment with another.
2 To key a transmitter to radiate in exact phase or
synchronization with a master.
SLB 1 System link budget.
2 Sidelobe blanking.
SLBM Submarine-, or sea-, launched ballistic missile.
SLC 1 Sidelobe clutter, or cancellation.
2 Software life cycle.
3 Space launch complex (pronounced slick).
4 Submarine laser communications.
5 Source lines of code.
6 Sonobuoy launch container.
7 Sensitivity-level command (TCAS).
8 Synchronous-link control.
9 Storage and launch container.
SLCM 1 Submarine- [or sea- , or ship- ] launched cruise
missile.
2 Survivable low communications system.
SLD 1 Short lift, dry.
2 Supercooled large droplets.
3 Solid sky cover.
S/LD Spoiler(s) and lift dumper(s).
Sleaford Tech Derogatory term for RAF College,
Cranwell.
SLECR Software-loadable equipment configuration
report.
sled Track-mounted wheelless vehicle accelerated to
high [often supersonic] speed by rocket[s] on which test
devices [such as fighter forward fuselage with ejection
seat] can be mounted.
Sleec Slender lifting-entry emergency craft.
sleet Precipitation of rain/snow mix or partially melted
snow. Two special US usages: frozen rain in form of clear
drops of ice, and glaze ice covering surface objects; both
highly ambiguous.
sleeve 1 Sleeve target.
2 Plastics cylinder used as colour-coded electrical cable
marker.
3 Valve mating with bore of sleeve-valve cylinder.
4 Fabric tube for filling gas aerostat.
5 Windsock [not common].
sleeve target Tapered tube of flexible fabric, open both
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