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IPSE
IPSE Integrated product (or project) support environment
(software).
IPT 1 Integrated project team; L adds leader (UK).
2 Integrated product team (US).
3 Intermediate-pressure turbine.
4 Integrated physiological trainer [a simulator].
5 Intelligent power terminal.
IPU 1 Interface processor unit.
2 Integrated power unit [usually electric].
3 Image processing unit.
IPV 1 Improve.
2 Icy runway, also IR.
IPW 1 Institut für Physikalische Weltraumforschung
(G).
2 Ice-pellet shower.
IP/XML Internet protocol, extensible markup
language.
IQA The Institute of Quality Assurance (UK).
IqAF Iraqi air force [UK usage].
IQSY International Quiet Sun Years [1964–65].
IQT Initial qualification training, or testing.
IQTG International Qualification Test Guide (ICAO).
IR 1 Infra-red.
2 Instrument rating [or route, or rules].
3 Inspection report.
4 Incident report.
5 Initial reserve (RAF).
6 Ice on runway.
7 Ice reconnaissance.
8 Implementing rules.
IR Rotor-system inertia.
IRA 1 Inertial reference assembly.
2 Infra-red astronomy.
3 Initiated by requesting authority.
4 Intercooled recuperated aero-engine (Clean).
IRAC 1 Interdepartmental Radio Advisory Committee
(US).
2 IR array camera.
IRAD 1 Investigate, research and define.
2 Independent research and development.
3 IR acquisition and designation [S adds system].
IRAN Inspect and repair as necessary.
IR&D Internal research and development, ie company
funded.
IRAS 1 Interdiction/reconnaissance attack system.
2 IR astronomy satellite.
iraser IR laser (not recommended).
Irasi, IRASI IR atmospheric sounding interferometer.
IR augmenter Flare or otherwise intense IR source
carried by vehicle to facilitate IR tracking.
IRAWS IR attack weapon system.
IRB 1 Industrial revenue bonds.
2 Integrated Requirements Board.
IRBM Intermediate-range ballistic missile.
IRC Industrial Reorganisation Corporation (UK).
IRCA Integrated real time in the cockpit/Real-time out
of the cockpit for combat aircraft (AFRL).
IRCAM IR camera acquisition module.
IRCC International Radio Consultative Committee.
IRCCD IR-sensitive charge-coupled device.
IRCCM IR counter-countermeasures.
IRCM IR countermeasures (sometimes rendered IRC).
Measures adopted to minimise IR emissions or render
them misleading (eg by ejecting flares which it is hoped
I-RNAV
hostile IR-homing weapons will prefer instead of one’s
own aircraft).
IRCS Intrusion-resistant communications system.
IRD 1 Interoperability requirements document.
2 Independent (or internal) research and development
(company-funded).
3 Inlet ram drag.
4 Integrated receiver/decoder.
IR decoy Intense heat source intended to distract IRhoming
missiles.
IR detector Device containing cell sensitive to IR which
raises electrons (cryogenically cooled to reduce noise) to
higher energy level.
IRDF IR direction-finding.
IRDS IR detecting set, or detection set, or suite, or
system.
IRDT Inflatable re-entry and descent technology.
IRDU IR detection unit.
IRE 1 Institution of Radio Engineers (UK).
2 IFF reply evaluator.
3 Instrument rating examiner.
4 Internal roll extrusion.
IR/EO IR electro-optical.
Ireps Integrated refractive effects prediction system
(anaprop).
IREW IR electronic warfare.
IRF 1 Immediate Reaction Force (NATO).
2 Institute of space physics (Sweden).
IRFFE Intelligent RF front end.
IRFI International Runway Friction Index.
IRFIS Inertial-referenced flight inspection system.
IRFITS IR fault-isolation test system.
IRFNA Inhibited red fuming nitric acid.
IRFPA IR focal-plane array.
IR guidance Use of IR seeker cell and combined optics
and flight control to make vehicle home on suitable heat
source.
IRI Inadvertent runway incursion.
IRIA Institut de Recherche Informatique et
d’Automatique (F).
iridium Ir, hard, inert silvery metal, density 22.562, MPt
2,410°C.
IRIG Inter-range instrumentation group.
Iris 1 IR [or integrated radar] imaging system.
2 Inferential retrieval index system.
3 IR interferometer spectrometer.
iris scanner Looks into human eye to give unequivocal
confirmation [or not] of identity.
IRJ IR jammer.
IRLS 1 IR linescan, or line scanner.
2 Interrogation, recording and location system.
IRM 1 Information resources management.
2 Intelligent robotics manufacturing.
3 Ion-release module.
4 Implementing Rules on Maintenance, new legislation
for General Aviation [2006–] (IAOPA).
IRMA International Registry of Mobile Assets [2001–].
IRMP Inertial reference mode panel.
IRMS Integrated radio management system.
I rms Effective [root mean square] current.
IRMW IR missile warning [S adds system or
subsystem].
I-RNAV Boeing term for RNP-RNAV, meaning
integrated-RNAV.
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