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source noise
5 Verb, to assign a * 1.
source noise Generated noise, that emitted by source in
all directions as distinct from that received by observer.
source panel A planar source sheet [next].
sorce sheet Hypothetical 2-D sheet of infinite number of
infintesimally weak sources.
Sourdine Study of optimization procedures for
decreasing the impact of noise around airports.
souris Inlet centrebody shock-cone (F, literally
‘mouse’).
southerly burster Line squall [S and E Australia].
SOV 1 Shut-off valve.
2 Simulated operational vehicle.
3 Space operations [or operating, or observation]
vehicle, part of MSP.
SOV-AB Replacement persistent Toxic-B lethal gas and
dispenser system (USSR).
sovereignty ICAN Rule 1 decrees every state has
“complete and exclusive * over the airspace above its territory.”
SOW 1 Stand-off weapon.
2 Statement of work.
3 Special Operations Wing.
SOWG Science Operations Working Group (JPL).
SO x Oxides of sulphur, SO 2 and SO 3 .
SP 1 Stabilized platform.
2 Speed brake.
3 Scheduled passenger.
4 Staging post.
5 Self-propelled.
6 Single-phase.
7 Schedule planning.
8 Software protocol.
9 Solar-powered.
10 South Pacific ocean (ICAO).
11 Snow pellets.
12 Special, or special performance.
13 Self-protect (ARM mode).
14 Space.
15 Service provider.
S/P 1 Speed/power measurement point, ie 1 g, level
flight, constant V.
2 Serial/parallel.
SPA 1 Solar-powered aircraft.
2 Seaplane Pilots Association [office, Frederick
MD21701] (US).
3 Special-purpose aircraft, usually RPV.
4 Surplus Property Administration (US).
5 Schedules planning and analysis.
6 Special-Purpose Audit.
7 SkyTeam Pilot Alliance (Delta/Air France).
SP/A Smart procurement, acquisition.
SpA Società per Azioni [company, I].
SPAAG Self-propelled anti-aircraft gun.
Spacdar Specialist Panel on Automatic Conflict
Detection And Resolution (ICAO).
Space Software productivty and cost estimation.
space Various precise definitions, but loosely volume in
which celestial bodies move and esp. local portion of solar
system outside Earth’s atmosphere.
space age Conceptual period in which human beings
first learned to operate in space, beginning 1957 (first artificial
satellite) or 1961 (first manned space flight).
space/air vehicle See aerospace vehicle.
space qualified
space biology See bioastronautics.
spaceborne Travelling through space; suggest unnecessary
word.
space capsule Environmentally controlled container in
which device or living organism flies in space; suggest not
used for human occupation.
space charge Negative charge carried by cathode electrons
which unless continuously accelerated away bar
further emission.
space-charge region See depletion layer.
SpaceCom Space Command (USAF).
spacecraft Self-contained space vehicle, manned or
unmanned.
spaced armour Fitted in layers with sufficient gaps to
defeat HEAT or hollow-charge weapons.
spaced-diversity Radio communications technique
which avoids fading by using three or more receiver aerials
spaced 10 or more wavelengths apart, all feeding separate
amplifying channels.
space defence All measures designed to destroy
attacking enemy vehicles, including missiles, while in
space, or to nullify or reduce effectiveness of such attack
(DoD).
space equivalent Region in atmosphere where one
particular parameter is similar to that in space.
space-erectable Capable of being assembled in space, eg
radiation shield.
space fabrication Manufacturing or building operations
in space.
spacefighter Aerospaceplane with sufficient endurance
and manoeuvrability to survey and if necessary disable
hostile satellites.
space-fixed reference 3-D cartesian co-ordinate system
related to fixed stars.
spaceflight 1 Journey through space of man-made
object.
2 The technology required for (1).
spaceframe 3-D framed structure assembled from
simple tubes or girders with pinned or fixed joints, usually
built up from succession of triangulated assemblies for
rigidity. Note: may have nothing to do with space.
space gyro Gyro having complete freedom about all
axes, as distinct from rate, tied or Earth gyros.
spacelab Laboratory for operations in space; with
capital S, ESA/NASA programme.
Space Launch Initiative Far-ranging study of Shuttlereplacement
options (NASA).
spacelift Transport of material/materiel from Earth to
locations in space.
space medicine Branch of aerospace medicine concerned
with health of human beings before, during and after
spaceflight.
Spacemetal Range of corrugated-core sandwich structures
in stainless steels patented in 1957–60 by North
American Aviation [initially for Navaho missile].
space operations vehicle Primary component of MSP,
reusable launch vehicle [probably T 3 O] carrying various
upper mission stages.
spaceport Site dedicated to launch and recovery of
humans engaged in spaceflight as paying passengers.
space probe See probe (3).
space qualified Certificated for prolonged use in space
environment, especially outside a satellite or space
station.
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