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SCI
SCI 1 Smoke curtain installation, for laying smokescreen.
2 Switched collector impedance.
3 Secure [or sensitive] compartmented information
(DoD).
4 Scalable coherent interface.
5 Serial communication interface.
SCIA Spacecraft checkout and integration area.
SCID Software configuration index drawing.
SCIDA System co-ordinating installation design
authority.
SCIDM Single-cord improved data modem.
science pilot Experienced researcher in a scientific
discipline subsequently qualified as pilot, eg of Space
Shuttle (NASA).
Scimitar System for countering interdiction missiles and
target-acquisition radar[s].
scimitar wing One whose planform is curved; usually
means same as crescent wing but has been applied to early
wings curved across whole span with ‘sweep’ at tips and
zero sweep at root.
Scinda Scintillation network decision aid (USAF space
command).
scintillation 1 See glint (radar).
2 Rapid and random variation in appearance of small
light source viewed through atmosphere, esp. variation in
luminance.
3 Brief light emission by single event (eg impingement
on phosphor) (see * counter).
scintillation counter Instrument for measuring alpha,
beta or gamma radiation by counting scintillations (3);
also called scintillator or scintillating counter.
scintillation spectrometer Scintillation counter plus
pulse-height analyser for radiation energy distribution.
scintillometer Photoelectric photometer for measurement
of wind speed near tropopause by various
Schlieren-type measures of stellar scintillation. Also
called scintillation meter.
SCIP Secure communications interoperability
protocol.
SCIRP Semiconductor IR photography.
SCISE Self-contained in-seat entertainment.
scissor Any flight manoeuvre made by coarse rudder at
low airspeed. See scissors.
scissor lift Platform mounted on two pairs of pivoted
arms giving true vertical motion without any tilt. Hence,
scissor jack, scissor drive.
scissors Flight manoeuvre performed by two or more
pairs of aircraft crossing at angle like two halves of *; basically
a series of turn reversals intended to make following
enemy overshoot.
scissor wing Wing made as single plane from tip to tip
pivoted to fuselage at mid-point; usually synonymous
with slew wing.
SCIU Code for radio-altitude indicator or reading.
SCJ Shaped-charge jet.
SCL Space-charge limited (C adds ‘current’).
sclerometer Hand instrument measuring hardness by
load needed to make scratch of standard depth with
diamond point rotated along arc.
scleroscope Hand instrument measuring hardness by
rebound height of hard-tipped (steel or diamond
depending on pattern) rod-hammer dropped inside tube
SCPI
from standard height on to surface. Common commercial
model is Shore *.
SCM 1 Single-crystal material (or metal).
2 Single-chip microprocessor.
3 Software configuration management.
4 Spoiler control module.
5 Surface contamination module.
6 Silicon carbide monofilament.
7 Self-contained munition.
8 Supply-chain management.
9 Subsidies and countervailing measures.
SCMR 1 Surface-composition mapping radiometer.
2 Surface-combatant maritime rotorcraft (UK RN).
SCN 1 Specification change notice.
2 Satellite control network.
3 Self-contained navigation [S adds system, U adds
unit].
SCNS See above.
SCO 1 Sub-carrier oscillator.
2 Scramble Cancellation Order.
3 Slow cook-off [ammunition].
SCOB Scattered clouds or better.
Scoff Society for Conquest of the Fear of Flying (US).
SCOMP, Scomp Secure communications processor.
scooter bogie One with two wheels only, in tandem.
SCOPE Simple checkout program (language).
Scope Spacecraft operational-performance evaluation.
scope 1 Electronic display, esp. one supplying output of
radar (colloq.).
2 Generalized term for optical viewing instrument, eg
microscope, CRT, etc (colloq., vague).
3 According to Webster, distance within which missile
carries; unknown in aerospace.
Scope Command From 2002 the replacement for all
previous h.f. ground communications (USAF).
scopodromic Headed in direction of target.
Score 1 Signal communications by orbital relay
experiment, or equipment.
2 Stratified-charge omnivorous [ie, multifuel] rotary
engine.
3 Supplier cost-reduction effort.
Score defect Damage caused by movement of penetrative
item across softer surface.
scoring Apart from normal use (eg in military exercises),
the process by which a customer numerically evaluates
bidders’ proposals.
SCORM Shareable contrent object reference model.
Scot Satellite-communications on-board (ship)
terminal.
scotopic Vision with retinal rods associated with
extremely low light intensity and detection of gross movement.
Scott Single-channel objective tactical terminal.
scout Single-seat aircraft, armed for air combat, operating
in patrol or reconnaissance role (WW1).
SCP, scp 1 Spherical candlepower.
2 System-concept paper.
3 Single-card processing.
4 Spacecraft control processor.
5 Supersonic camera pod (RAAF).
6 Security Co-operation Participant.
SCPC Single channel per carrier [or single carrier per
channel] alternative to TDMA; mobile ISDN.
SCPI Supersonic-cruise propulsion integration.
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