航空缩略语词典

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Kinetic Kill Vehicle , w1 F) a0 Z N! Q$ A/ Z6 tIntegrated - m* z1 N# Y- ^ f- |* kTechnology " y6 r/ n# N. W: o$ vExperiment (KITE) # ^3 O% S0 N @2 jA series of test flights at WSMR to demonstrate HEDI technologies. 6 X, L6 ]5 t0 ?7 B9 OKITE (1) Kuiper Infrared Technology Experiment. (2) Kinetic Kill Vehicle Integrated Technology Experiment. KKV Kinetic Kill Vehicle. KKVWS Kinetic Kill Vehicle Weapon System. ( l5 [& C! U% [# H/ o( AKL Kill Level. W/ T/ X0 h8 O, ^3 |, e; oKm Kilometer. Km/h Kilometer per hour. & J X* h+ b: KKm/sec Kilometer per Second. KMCC Kwajalein Mission Control Center. # F6 }) ]; |: O9 p! \5 B1 j! IKMR Kwajalein Missile Range. ( @! i6 |/ s9 s: QKMRSS Kwajelein Missile Range Safety System. KPP Key Performance Parameters. MDA GLOSSARY, VER. 4.0 K 159 Kr Krypton. 5 q3 H0 a- l X, |2 z7 JKREMS Kiernan Reentry Measurement System. KSC Kennedy Space Center, FL. Kt Kiloton. KTF Kauai Test Facility, Barking Sands, HI. KTP (1) Key Technical Partner. (2) Key Test Partner (3) Key Technical Parameters. Kts Knots. 8 v1 y" W0 q4 q! b9 ~+ { eKV Kill Vehicle. . h3 r% |8 z2 f' Zkw Kilowatt. 1 F% R0 E* V$ A1 ]3 M* NKW Kinetic Warhead. / I- s5 p* |' b$ B" ]3 aMDA GLOSSARY, VER. 4.0 L 161 L&TH Lethality and Target Hardening. L1SS Level 1 System Simulator. L2SS Level 2 System Simulator - NTF. * M+ ?$ Q8 @' a% a* iLAA Limited Access Area. LAAD Low Altitude Air Defense. 4 _' P) s3 M$ D4 b1 \# wLAAFB Los Angeles Air Force Base, CA. LABCOM Laboratory Command. 9 j, z) o1 u- s* R& JLABM Local Area Battle Manager. LABP Look Ahead Battle Planner LAC Low Authority Control. / v5 O5 v2 w, P; l0 l6 L' c- }LACE Laser Atmospheric Compensation Experiment (an SDIO/NRL satellite launched # L1 F( X7 {1 L# [8 Z4 ^, c5 zFebruary 1990 and turned off July 1993). 5 S' J$ M. X( GLACM Land Attack Cruise Missile. 4 S; _3 v1 }; s( }LADAR Laser Detection and Ranging. ! `4 b' P9 H* ~Laddering Down A hypothetical technique for overcoming a terminal phase missile defense. Successive salvos of salvage-fused RVs attack. The detonations of one salvo disable local ABM abilities so that following salvos are able to approach the 0 V$ e. z3 L$ h5 btarget more closely before being, in turn, intercepted. Eventually, by repeating , l2 P6 G# H8 |5 ?- y# ythe process, the target is reached and destroyed. LADL Lightweight Air Defense Launcher (USA TBMD term). LADS Low Altitude Demonstration System. LAFB Langley AFB, VA. LAMP Large Advanced Mirror Program. + K! ]( i1 V& B8 }4 T' uLAN Local Area Network. 6 h3 u0 j! n6 B/ ?; pLandsat Land Satellite (NASA program’s satellite). t% x! w" x3 V6 HLANL Los Alamos National Laboratory, NM. LANTRINS Low Altitude Navigation and Targeting Infrared Night System. $ @' E. M7 b" T# ]LAO Limited Attack Option. LAPL Lead Allowance Parts List (Navy term). $ m, w) @- D2 E: @. [; aLARC Langley Research Center, Hampton, VA. E: T L/ | H; sMDA GLOSSARY, VER. 4.0 L 162 ) J# e8 @0 j/ f4 L2 O! ~Large Optics The technology of constructing and employing mirrors over 1 m aperture to direct and control high power beam weapons/systems with large coverage, or to provide high resolution or high sensitivity for detection and/or imaging. 1 `! N- e# r- g1 _% HLASA Large Aperture Seismic Array. 6 p$ F& u, m0 I4 R7 ?& L7 V: `2 QLasant A material that can be stimulated to produce laser light. Many materials can be used as lasants; these can be in solid, liquid, or gaseous form (consisting of 7 t5 O q7 V# n4 Umolecules including excimers or atoms) or in the form of plasma (consisting of ions and electrons). Lasant materials useful in high energy lasers include carbon dioxide, carbon monoxide, deuterium fluoride, hydrogen fluoride, iodine, xenon chloride, krypton fluoride, and selenium, to mention but a few. LASE LIDAR Acquisition and Sizing Experiment. 6 A( T7 Q. f) uLaser An active electron device that converts input power into a very narrow, intense 2 U2 ~! v \0 |4 X% o- P& ubeam of coherent visible or infrared light; the input power excites the atoms of an optical resonator to a higher energy level, and the resonator forces the excited * L y! h3 y! P$ Z9 w3 z" yatoms to radiate in phase. Derived from Light Amplification by Stimulated - U+ W' g! {9 L M. JEmission of Radiation and classified from Class I - Class IV according to its potential for causing damage to the eye. Laser Designator A device that emits a beam of laser energy to mark a specific place or object. Laser Detection and Ranging (LADAR) A technique analogous to radar, but which uses laser light rather than radio or microwaves. The light is bounced off a target and then detected, with the return @& x7 v+ A7 k0 E! I% tbeam providing information on the distance and velocity of the target. Laser Guided $ e- ^9 f& Z3 W+ E4 f2 `Weapon 6 k" t1 C" `8 Q# ^+ \. p# jA weapon that uses a seeker to detect laser energy reflected from a laser ! X z+ {, z" V% |8 ~8 bmarker/designated target and, through signal processing, provides guidance commands to a control system. The control system then guides the weapon to % l; ?5 c/ Z. w5 Pthe point from which the laser energy is being reflected. ) C/ c1 m/ [; ^" `& i6 \Laser Imaging Radar A technology whereby a laser beam can be used in a way similar to the use of a radar beam to produce a high-quality image of an object. 8 W' m; J# O" K2 v, ]. K. YLaser Optics Technology associated with the use and control of laser beams with flux greater ( Z& `% J! b: P% ~6 Rthan 1 watt/cm2. $ d+ i+ B$ C' t! |: {; G+ HLaser Seeker A device based on a direction sensitive receiver that detects the energy reflected $ X8 B; V0 ?) xfrom a laser designated target and defines the direction of the target relative to , Y# |; h( J( T- ^the receiver. See also laser guided weapon. Laser Target Designating System 2 Z9 A; X6 K) q# |- L5 j# RA system that is used to direct (aim or point) laser energy at a target. The system consists of the laser designator or laser target marker with its display and " I. [, {; r, dcontrol components necessary to acquire the target and direct the beam of the # B% B/ C9 k; }9 t- o- A3 `6 \laser energy thereon. l( L9 V) X# _, W" ULaser Tracker A device that locks on to the reflected energy from a laser marked/designated and defines the direction of the target relative to itself. " q* f% W0 x9 C% ]Laser Weapons Devices, such as photon generators, which produce a narrow beam of coherent radiated power greater than 1 MW. ; Y/ q4 }" J& f% U8 n4 x2 SLASERCOM Laser Communications. LATS Long Wave Infrared Advanced Technology Seeker/Sensor.

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MDA GLOSSARY, VER. 4.0 L 9 s" i& a. w7 c- Z163 Launch Azimuth Missile launch location measured in degrees clockwise from the local northpointing longitude line at the launch site. (USSPACECOM) 4 Z) q( l! z8 P1 F0 J8 w, dLaunch Detection Initial indication by any one of a variety of sensors that a booster has been launched from some point on the surface of the earth, with initial characterization p+ |0 ~' W% [$ d0 Oof the booster type. (USSPACECOM) - h$ @+ m* F2 kLaunch Point 5 l& ], E6 Z- YDetermination . V5 p ^/ T% F2 J6 w! T; C1 YWith computer methods, uses missile track observation to estimate the point on the earth’s surface from which the missile was launched, expressed in terms of circular error probable. Launch Under ; R) f: q4 }) e- TAttack (LUA) 8 ~6 _1 B2 X8 L2 _7 n% {6 uExecution by National Command Authorities of Single Integrated Operational Plan forces subsequent to tactical warning of strategic nuclear attack against the ! q) @4 C4 w- l8 X$ t" jUnited States and prior to first impact. ! q! M( ~4 E7 ^5 Q( zLaunch + O# ^9 r& l6 v$ }: u* yVerification 9 p8 T$ x: w$ }6 N8 oConfirmation of a detection of a booster launch by receiving a report from a & _, A7 o1 e, f$ Wsensor separate and independent of the sensor that initially detected a specific booster launch. Layered Defense A defense that consists of several sets of weapons that operates at different , X: W; k& A3 N0 P: M3 gphases in the trajectory of a ballistic missile. Thus, there could be a first layer 6 d" m1 `" L8 H$ [(e.g., boost phase) of defense with remaining targets passed on to succeeding - ?4 i S, C- c9 [' f0 Clayers (e.g., midcourse, terminal). 8 }; O, ?9 r( H3 Y6 [ p0 w% [lb Pound. LBL Lawrence Berkeley Laboratory, Berkeley, CA. & O' Z& M( d# }( T" BLBM Localized Battle Management/Manager(s). LBTS Land Based Test Site. - W( o2 X8 Y4 M8 P5 m/ V- \8 _7 iLCC (1) See Life-Cycle Cost. (2) Launch Control Center. 1 l' p' U) q* `$ i. k. Y. X& aLCCE (1) Life-Cycle Cost. (2) Launch Control Center. (3) Land Component Commander (JCS term). " @3 T. ^2 l; z! H* FLCCS Life-Cycle Contractor Support. % Q$ C* f1 _+ g& H! |) ?7 x# |9 S8 ALCF Launch Control Facility. , J9 b: ]$ ]) [# B% h( eLCM (1) Life Cycle Management. 8 R$ a. a& [; p }% f- M% c(2) Lightweight Communications Module (USAF TelComms/Computer term). 1 Q/ }+ _3 J* |5 I9 p' _" qLCN Logistics Control Number (ILS term). & R% ~7 G$ H/ T/ k$ N0 O* z& ULCOM Logistics Composite Model. * A$ b( V9 r! [+ b0 dLCN Logistics Control Number (ILS term). 7 z0 I8 z1 c6 t7 p; `LCS Laser Crosslink System. % L# Z' v6 e) ?( f* c0 nLDC Less Developed Country. ) ^1 f) I" k5 E' u& Z' J rLDS (1) Layered Defense System. (2) Lexington Discrimination System. (3) Limited Defense System. + T+ a9 g- I7 a* _, Z* vMDA GLOSSARY, VER. 4.0 L 164 LE Lethality Enhancer (PAC-3). Lead Component/ ! O9 ^# P% }+ O1 k5 ^Service . d. S6 y. u2 u5 u _# aThe DoD Component designated by SECDEF to be responsible for management of a system acquisition involving two or more DoD Components in a joint ( H- i [" |; O7 E5 {program. LEAF Law Enforcement Access Field. Leakage The allowable threat objects passing through a BMD system expressed as a percentage of the threat. To ensure overall system performance, permitted 9 H" k7 \7 D* {6 j5 ?leakage is “budgeted” among individual BMD phases and functions. Leakage (Max) The maximum allowable threat objects passing through a BMD system expressed as a percentage of the design-to threat. To ensure overall system performance, ' h5 @ d# k4 F2 P* G3 n- ^permitted leakage is “budgeted” among individual BMD phases and functions. LEAP Lightweight Exoatmospheric Projectile. LEASAT Leased Satellite. Least Privilege This principle requires that each subject in a system be granted the most restrictive set of privileges (or lowest clearance) needed for the performance of authorized tasks. The application of this privilege limits the damage that can 6 O7 s5 G0 F% p1 [( o7 `# cresult from accident, error, or unauthorized use. $ W: |/ z8 P2 f- L |" BLED (1) Low Endoatmospheric Defense. (2) Light Emitting Diode. $ F P- k3 a) u$ {LEDI Low Endoatmospheric Defense Interceptor. LEDS (1) Low Endoatmospheric Defense System. (2) Link Eleven Display System (USN term). 8 q/ W: |' a% H& U$ V2 t4 ]LEI Low Endoatmospheric Interceptor. 2 f. _4 W, i1 P. pLEIP Link Eleven Improvement Program (USN term). LEL Low Energy Laser. ) W2 {* [$ r0 |% |& w& ILELWS Low Energy Laser Weapon System. LEM Logistics Element Manager (ILS term). ( @5 V9 J4 R" D! s: }* s4 C% VLEO Low Earth Orbit. LETS LWIR Environment and Threat Simulation. Level of Effort (LOE) % B( M$ ^ L7 d* l2 \Effort of a general or supportive nature that does not produce definite end products or results, e.g. contract man-hours. Leverage (1) The advantage gained by boost-phase intercept, when a single booster kill may eliminate many RVs and decoys before they are deployed. This , H- \( v1 ~& A; p9 s9 d' bcould provide a favorable cost-exchange ratio for the defense and would reduce stress on later tiers of the SDS. (2) In general, the power to act or influence to attain goals. LF (1) Landing Force. (2) Low Frequency. 1 a J/ {9 d" L. T0 QMDA GLOSSARY, VER. 4.0 L ( ?8 |' u& o! P \& o165 LFIE Live Flight Integration Exercise. LFOV Limited Field of View. % E' N" k) B& W2 H. m2 dLFS Loral Federal System, Gaithersburg, MD. 4 s% U" O A( z2 O; d$ BLFT&E Live Fire Test and Evaluation. . u6 ?% b0 E' }& G6 N6 tLGB Laser Guided Bomb. + N7 H& K/ U( cLGM (1) Laser Guided Missile. (2) Loop Group Multiplexer. LGSM Light Ground Station Module (USA CECOM term). LHO Amphibious Assault Ship. ; T5 T. U/ P/ B, a. `Li Lithium. 4 u/ W/ ~) T! B# l' |; ILIC Low Intensity Conflict. LIDAR Light Detection and Ranging. Life Cycle (1) The total phases through which an item passes from the time it is initially 8 S* ?* `* v& D" I$ v+ }/ z3 ydeveloped until the time it is either consumed or disposed of as being excess to all known materiel requirements. ' W5 j3 Z/ J7 f; Q: [) |/ o4 c(2) (Software). All the states a software or software related product passes . D/ K# N& n, Ythrough from its inception until it is no longer useful. Life-Cycle Cost (LCC) The total cost to the Government of acquisition and ownership of that system over its useful life. It includes the cost of development, acquisition, support and, # K* d0 G: ^* E; X5 Y Mwhere applicable, disposal. , _/ c5 b) C/ ALife-Cycle Management Process for administering an automated information system or hardware support ( [7 S* ~& u8 Z( o8 P) Ysystem over its whole life, with emphasis on strengthening early decisions which shape costs and utility. ! ~% f! Z& b T( YLife-Cycle Model A framework containing the processes, activities, and tasks involved in the + M8 S2 D: \; E' Cdevelopment, operation, and support of the system, spanning the life of the 8 z2 M' L- n# |7 g9 {5 l* Csystem from the definition of its requirements to the termination of its use. / t- f* }$ a9 W0 Q9 A; Z. v- y& PLife Cycle of a Weapon System ; M5 I% z, @/ O1 y/ n/ k# C! m1 VAll phases of the system's life including research, development, test and evaluation, production, deployment (inventory), operations and support, and 6 n L, `' c5 T, c9 ydisposal. Life Jacket The life support storage container for a Brilliant Pebbles singlet. The life jacket 3 }: H+ D: k: k2 x9 wcontains subsystems that perform power, communications, and environmental ! z/ e3 S3 e+ uprotection functions. % q2 m; [6 B+ \/ xLight Detection and Ranging (LIDAR) $ U5 \6 X+ N+ K& m1 OA precision probing instrument used to measure concentrations of different 5 w! x9 l5 k+ C* _+ o5 }gasses or particulates in a given amount of atmosphere.

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Light Replicas (LREP) & w* M, ^6 Q) a; q2 q9 ADecoys that, by virtue of shape, closely approximate an RV’s signature with little ) X6 V; }8 v" o( W% Noff-load penalty. - M" d# T7 C' T/ X, nLIMIDIS Limited Distribution. 2 k; D+ L6 N2 \* Y1 {7 h$ j8 g+ O$ FMDA GLOSSARY, VER. 4.0 L ) C$ H) E, Z9 z' r, Q1 t; e p166 Limited Attack An attack on the U.S. and its allies, which provides a stressing timeline, and is geographically distinct. Not an all-out attack or mass wave. Limited Defense System (LDS) The development of systems, components, and architectures for a deployable anti-ballistic missile system (as described in section 232(a)(1) of the 1991 Missile ( S; x: U W1 t. p* `7 O' KDefense Act, as revised) capable of providing a highly effective defense of the 0 |/ N1 [# S- VUnited States against limited ballistic missile threats, including accidental or unauthorized launches or Third World attacks, but below a threshold that would / ~( b; t+ L5 m+ |# N5 xbring into question strategic stability. ! W; x s' A& aLimited Operational Capability (LOC) " U& D8 u+ P0 b. A6 aA point in time when the first set of sensors and weapons can be employed to provide a limited protection system. Limited . d* z- s6 _ w+ W( dProduction The initial production of a system in limited quantity. Part of an acquisition , a8 t# T. A- }4 sstrategy to be used in test and evaluation for verification of design maturity, manufacturing process final proofing, and product engineering and to verify a factories capabilities prior to a decision to proceed with production. Decision usually made near the end of EMD or at Milestone IIIA or equivalent. (Also ! g% n* {2 k# u# k+ O! y- _: }0 Ncalled Low-Rate Initial Production or Pilot Production.) / h3 D- x" z) t$ \# H0 r' M. ^$ RLimited Test Ban Treaty The bilateral Treaty signed and ratified by the United States and the (former) ; Q' U; C X6 U6 P$ _U.S.S.R. in 1963, which prohibits nuclear tests in all locations except underground, and prohibits nuclear explosions underground if they cause radioactive debris to be present outside the territorial limits of the state under whose jurisdiction or control the test would be conducted. LIN Line Item Number. Linac Linear Accelerator. Line Item (Budget) / I8 F- G( G' |: n! y& |) aA specific program end item with its own identity (e.g., B-1B Bomber). 7 _- n! y1 A3 m& x. H/ w7 NLine of Sight 9 q6 n4 t' D7 I! d(LOS) The line from sensor to target necessary for the commencement of the detection, acquisition, track, and identification of a target. Line Replaceable Unit (LRU) An essential support item removed and replaced at field level to restore end item / `$ Z2 r# s% C/ ~% Z' Y2 oto an operationally ready condition. (Also called Weapon Replacement Assembly and Module Replaceable Unit). 8 a$ g6 r7 W. t! wLink-16 TADIL-J. Link Quality 8 d1 b' ]( b7 Q! y! x# a! }Evaluation + z; T7 e5 A- K7 K+ v' O! n9 l1 fThis testing of links to create bit error estimates and monitors natural or induced link interference. " C C+ L6 q) U& V \' ULIP Lethality Improvement Plan. 7 m- ]6 Y1 t# X ~( b9 n8 r9 QLiquid Fuel Booster (LFB) ; ~5 ]! t( N i4 fTarget booster being developed to mate with current reentry vehicles and emulate the short/medium range threat. LIS Laser Isotope Separation. LITINT Literature Intelligence. 7 Z; f% \) v" N" O: s" p, wMDA GLOSSARY, VER. 4.0 L # m1 ?4 I9 k& B" m7 x% j- j167 Live Fire Test 7 u( A0 V+ a' g+ I9 s1 h* qAnd Evaluation $ v8 G! p/ Z5 A) y% h(LFT&E) Survivability testing and lethality testing required before full-scale production. ' x! n, a: ?1 r. ]4 S* aMust be conducted on ACAT I and II programs for: (a) A covered system (a , `3 J; g1 T$ f: P7 a7 C: kconventional weapon system designed to provide some degree of protection to the user in combat); (b) a major munition or missile program; (c) a product improvement program that will significantly affect the survivability of a covered 2 y+ _4 r6 A: u) c. L* @! }system. ( ~0 [3 `2 A6 F( X& T8 ILIVEX Live Exercise. LIWA Land Information Warfare Activity. 2 [6 |& M1 B1 M: ?& E1 a; CLJ Life Jacket (BE term). LL (1) Lincoln Laboratory, Lexington, MA. , P+ a- F o/ [( |# z(2) Legislative Liaison. % |! a; j& `; nLLM Long Lead Material. 9 } J% M b7 cLLNL Lawrence Livermore National Laboratory, Livermore, CA. . l6 ^: V) G/ l. _( ULLTIL Long-Lead-Time Items List (ILS term). LLUM Low background LWIR Uniform Mercury Cadmium Teloride (HgCdTe). LM (1) Lockheed Martin, a defense industry contractor. (2) Logistics Manager (ILS term).

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LM/GES Lockheed Martin/Government Electronic Systems. LMA Lockheed Martin Astronautics, a defense industry contractor. ' @( y; ^: G/ I$ A- o! t* ]LMANS Lockheed Martin Aeronautic and Naval Systems. LMC Late Midcourse. - _9 q, E$ m f* ]' k$ JLMFBR Liquid-Metal Fast Breeder Reactor. 6 @ X* `0 ^- c: y: fLMIS Logistics Management Information System. , ], @* P" H$ ~% e* _+ h, |LNA Low Noise Amplifier. 6 x9 |9 L2 T3 @8 ?8 XLNC Local Network Controller. - J! ?$ l7 X- m' i j4 T8 l4 y3 mLNE Low Noise Exciter (Electronics Engineering term). LNO Liaison Officer. + o' i- l0 J3 fLO (1) Local Oscillator (Electronics Engineering term). (2) Low Observables (LODE-related term). 0 Y( z" k7 e, q8 xLOA Letter of Agreement. LOAD Low Altitude Defense. + V# b8 K0 Y. y7 oLOC (1) Lines of Communication. (2) Lines of Code. (3) Limited Operational Capability. MDA GLOSSARY, VER. 4.0 L 168 3 h0 q, E( M- C+ R. yLOCAAS Low Cost Autonomous Attack System (USAF term). Local Assessment of 0 n. |* }" c; [& Z% q( r# t0 uEngagement The assessment of an engagement by high-resolution fire control sensors. 5 |. N8 }# P9 w5 L2 MLocal , J0 }* q8 p8 {9 t* h1 ~; ^Environment % w/ l5 z; X7 k. T+ K0 }* W/ fThe ISTC Local Environment contained within each node simulates the element 3 G# r! r; z3 F" |- q# wto the degree necessary to generate a realistic input to the Element Processor of Element Processor Emulation and provide a realistic response to the Element 1 h j/ O/ Z! y, F- g2 w% E0 Z+ eProcessor or Element Processor Emulation. 5 y. J! A- ?4 J/ @/ QLock On Signifies that a tracking or target-seeking system is continuously and 2 K9 z9 W7 e4 Pautomatically tracking a target in one or more coordinates (e.g., range, bearing, 5 k7 b7 F6 a; y/ G% uelevation). LODE Laser Optics Demonstration Experiment. LODTM Large Optics Diamond Turning Machine. LOE (1) Level of Effort. (2) Letter of Evaluation (AF). LOF Lifejacket Orbital Flight (BE term). 6 Y- H9 P% z/ YLofted Trajectory Trajectory with an apogee greater than the minimum-energy trajectory to the : ^% t; H/ D& vsame range. : {9 l( Y4 H$ j9 y* hLOG Logistics. LOG.WIPT Logistics Working-level IPT LOGAM II Logistics Analysis Model II. LOGFAC Logistics Feasibility Analysis Capability. LOGFOR Logistics Force. Logistics The science of planning and carrying out the movement and maintenance of forces. In its most comprehensive sense, it includes those aspects of military / x* G, t9 y2 @& `* x6 p# {! Moperations which deal with: (1) design and development, acquisition, storage, movement, distribution, maintenance, evacuation, and disposition of materials; 2 |0 l" h) H1 k$ |2 @; b1 T(2) movement, evacuation, and hospitalization of personnel; (3) acquisition or construction, maintenance, operation, and disposition of facilities; and (4) acquisition or furnishing of services. . _/ y4 s$ s. Z" TLogistics Support The supply and maintenance of materiel essential to proper operation of a 1 d2 D, h6 S# _& N- m( D; m* \# Z7 lsystem in the force. Logistics Supportability The degree to which planned logistics support (including test, measurement, and diagnostic equipment; spares and repair parts; technical data; support facilities; transportation requirements; training; manpower; and software support) allow . `# Y7 n* Q8 J4 P, B$ r% Gmeeting system availability and wartime usage requirements. MDA GLOSSARY, VER. 4.0 L 169 ! ?$ l* m0 n+ _; F( ZLogistics Support Analysis % Z3 s- q d2 B4 ~(LSA) The selective application of scientific and engineering efforts undertaken during the acquisition process, as part of the systems engineering process, to assist in: causing support considerations to influence design; defining support requirements that are related optimally to design and to each other; acquiring . `" h/ t1 C/ pthe required support; and providing the required support during the operational phase at minimum cost. 3 l: X& o' h( d( B& yLogistics Support " S% s5 `" F ?; z9 vAnalysis Record (LSAR) A formal tool under MIL-STD 1388-2A that uses records/forms to document 7 Y4 B3 V/ M# K7 J8 k9 |operations and maintenance requirements, RAM, task analyses, technical data, ' T* m* C6 o) j9 C1 osupport/test equipment, facilities, skill evaluation, supply support, ATE and TPS, 5 u1 e2 ~8 S, F2 n) n4 Q9 Z3 gand transportability. LSAR is the basis for training, personnel, supply 5 [) g% V! q! @1 `, A. qprovisioning and allowances construction, support equipment acquisition, 1 ^7 X. S+ l! }: nfacilities construction and preparation, and for maintenance. 9 o& W+ L1 i* eLOGPLAN Logistics Plan. 5 A7 x, Z( x+ K' e4 dLOGSIM Logistics Simulation Model. LOI (1) Letter of Instruction. (2) Letter of Intent. LOMEZ Low Altitude Missile Engagement Zone. Long Lead Items Long Range Air o* K4 X0 p8 t$ Y D! nLaunched Target ) r2 [2 z2 Q4 n- r7 N% i: {& L(LRALT) ) {0 d: A* p2 q& j" K# _Those components of a system for which the times to design and fabricate are the longest, and, therefore, to which an early commitment of funds may be % _- c9 ^+ ^' Y1 S% a) o. ]1 Xdesirable in order to meet the earliest possible date of system completion. Two-stage, air launched ballistic missile target being developed for MBRV-4. Long Wavelength Infrared (LWIR) 8 ]+ m) e+ n/ {: k" G# U$ cThermal radiation emitted by a source in the electromagnetic spectrum * A& n3 @8 e) B5 y6 q' Eencompassing infrared wavelengths of 6 to 30 microns. o$ R0 L5 j% V" M3 V7 bLOR Level of Repair Analysis (ILS term). LORA Level of Repair Analysis (ILS term). LOS (1) Line of Sight. (2) Large Optical Segment. 3 z4 k# T; u- x# X0 t5 y/ ?LOTS Logistics Over-The-Shore. LOW Launch on Warning.

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Low Altitude 8 |. I, ^$ d' F6 I& [$ RDemonstration ; n6 I' ^, t6 {" vSystem (LADS) % o1 ?8 {. u$ w% A3 j# T) sPart of the SBIRS Low Program Definition and Risk Reduction (PDRR) program * o6 a& f! w) Bphase. The LADS will consist of a flight experiment and extensive ground n/ W* h* }* M7 E- \4 ]demonstrations by Boeing North American. The LADS flight experiment will be 5 ]' r# V+ n [' ]( T0 J: V. G( qlaunched in late FY99 to demonstrate the sensor performance of a SBIRS Low 4 X( `5 d. i$ S# o4 A$ \ L* Uconcept and collect phenomenology data. Low Earth Orbit (LEO) 1 E, X+ ~9 y2 D; X/ n aThese satellites are at altitudes between 100 and 400 nautical miles. They ' w% ]! r. f- m$ f) O5 f9 t1 Nhave short duration revolutions (about 90 minutes), short visibility envelopes (2.5 7 F" {+ D( n1 B$ Hminutes up to 10 minutes over a tracking station), short life spans, and are most # ]7 m& a6 E4 c5 z0 g) [subject to orbital perturbations due to atmospheric drag and earth gravitational anomalies. Low 2 V4 W7 E7 {+ X4 i- @& n+ {2 u' OEndoatmosphere That portion of the earth's atmosphere, generally below 40 km altitude. MDA GLOSSARY, VER. 4.0 L . B4 X4 d1 |. u0 P7 C* B170 Low-Rate Initial Production (LRIP) 2 R0 r+ j9 d9 I% ZThe production of a system in limited quantity to provide articles for operational test and evaluation, to establish an initial production base, and to permit an orderly increase in the production rate sufficient to lead to full-rate production 9 C0 Y" ?& g" f. r; Y: f' o/ Xupon successful completion of operational testing. LOWKATRER Low Weight Kinetic Energy Active Tracker. LOWTRAN Atmospheric and Interstellar Background Signature Model. LPAR Large Phased Array Radar. ' ~" q2 K% N! S, J bLPD Low Probability of Detection. LPE (1) Liquid Phase Epitaxy. ( k% D; C7 [1 Q2 m(2) Launch Point Estimate. LPI Low Probability of Intercept. , F& [7 j6 s5 {/ i7 J. k1 F: c: qLPS Limited Protection System. LR Long Range. LRA (1) Line-Replaceable Assembly. (2) Launch and Recovery Element. 1 K% V( d! c: G( k5 x$ m S- H+ ELRB Liquid Rocket Booster. 4 F* |& z4 D- t( Y1 N7 eLRC Lewis Research Center, Cleveland, OH. ( h1 S6 D- k( t( O3 ~' WLRE (1) Latest Revise Estimate. (2) Launch and Recovery Element. $ S. w5 H) m8 m( v- _" y$ N& x, DLREP Light Replicas. % N: ~# M3 v+ \$ HLRF Laser Range Finder. LRINF Longer Range Intermediate Nuclear Forces. LRIP See Low-Rate Initial Production. / L7 V8 Q% ?5 k+ H* {LRIP-OT Low Rate Initial Production – Operational Testing. LRTBM Long Range TBM. LRTNF Long-range Theater Nuclear Force. LRU (1) Line Replaceable Units. (2) Line Replacement Units. % b- E. H! Q2 k- [6 d. L& vLS Launching Stations (PATRIOT). LSA Logistics Support Analysis. LSAP Logistics Support Analysis Program. ' d3 J0 I2 V% y8 a5 j4 ~$ _6 ZLSAR Logistics Support Analysis Record. 6 T' N- x5 ]+ o( k- \LSART LSA Review Team (ILS term). LSAT Laser Satellite. ^! L' }$ w F6 c4 Q) u' XMDA GLOSSARY, VER. 4.0 L d# f- L; b& o8 L' O- z: x171 % Q$ {3 }- R( y \: Y" W1 lLSAWG LSA Working Group. LSE Lifetime Support Engineering (ILS term). LSEA Lifetime Support Engineering Activity (ILS term). ' c! z$ l0 M c; y3 J0 n- dLSI Large Scale Integration (circuits). 5 U4 D: s* `( M* {+ ~LSRS Loral Space and Range Systems, Sunnyvale, CA. . ^* i. N7 t+ U, G& c1 |LST (1) Laser Spot Tracker. (2) Landing Ship, Tank. LSTS Launcher Station Test Site. " c% L- U, h% E- ?- nLTA Lead Time Analysis. 9 C/ F% Q) ?& | Z3 C4 }2 dLTBT Limited Test Ban Treaty. LTD Laser Target Designator. # I; f; l2 d9 Y0 q% C7 aLTH Lethality and Target Hardening. LTS Low Temperature Superconductor LTV Launch Test Vehicle. - k7 _2 z8 }7 }' [LU Launch and Update. LUA Launch Under Attack. LUP Limited U.S. Protection. 6 P9 m/ ]9 m! f; y5 z+ L8 [LUT Limited User Test. LUT/OA Limited User Test/Operational Assessment. LVS Loral Vought Systems, a defense industry contractor. ! S0 A1 L' t1 C# O+ b! A/ ULVT Low Volume Terminal (USN/NATO/Telecomm term). 1 B; p/ F2 E0 f( e; o; SLW Laser Weapons. 3 @3 m' M% O/ P! X Q2 RLWAN Local Wide Area Net. LWIR See Long Wavelength Infrared. LWIR FPA (PET) Long Wavelength Infrared Focal Plane Array (Pilot-line Experiment Technology). `/ C% S+ d4 T: MLYTBT Low-Yield Threshold Test Ban Treaty. - N2 \( j* X- _LZ Landing Zone.

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MDA GLOSSARY, VER. 4.0 M . F8 }* g) b6 ]8 \) J) I173 m (1) Meter. (2) Minute. M (1) Model. (2) Million. (3) Mega. ^) d, q& \; h' q' a jM&LC Missile and Launch Control. . ]* T* _1 u; _* {! e5 e+ YM&P Manpower and Personnel. ! x& u4 E5 F9 V ZM&S (1) Materials and Structures. (2) Modeling and Simulation. M-T-M Model – Test – Model. $ n7 ?: P* t' [7 r5 F- FM/LWIR Medium/Long Wavelength Infrared. M/P Manpower/Personnel. ' p) C$ R& J7 q0 c& F# U EMAA Mission Area Analysis. MAAG Military Assistance Advisory Group. & `# n3 m4 a- J; h0 ~MAB Missile Assembly Building. 5 P+ s1 ]- k* }3 ?6 t2 ~0 mMAC (1) OBSOLETE. Military Airlift Command. See AMC. (2) Maintenance Allocation Chart. / P) i3 e) q' |: P/ a1 OMACCK Multi-Application Command and Control Kit (GD term for IVIS follow-on). MACCS Marine Corps Air Command and Control System. 7 A$ J4 K! p3 b/ G. P* J' CMACOM Major Army Command. MAD (1) Mission Area Deficiency. (2) Mutually Assured Destruction. MADCAP Mosaic Array Data Compression and Analysis Program. 3 ]7 U N M6 d1 c, c1 pMADS Modified Air Defense System. MAE Medium Altitude Endurance. ' d. n# Z) ?6 C0 Z8 L4 {MAGTF Marine Air-Ground Task Force. Main Beam The primary directional EMR emitted from radar transmitters. " g: }4 I$ k$ q+ IMaintainer An individual responsible for retaining the major defense system in or restoring it , ]9 A ~5 o2 M" | Gto a specified condition. Maintenance activities include inspection, testing, servicing, classification as to serviceability, repair, rebuilding, and reclamation. Maintenance ( L, o `- X) L5 {3 YConcept/Plan 7 G; \# r; T) {: K) z* HA description of maintenance considerations and constraints for ; x: j9 h! P, O1 S, j& Gsystem/equipment under development. A preliminary maintenance concept is developed and submitted as part of the preliminary system operational concept ; I6 v- |6 c# ?. j/ v3 B u$ g4 tfor each alternative solution candidate by the operating command with the / z% A+ b- @* z0 T5 z$ P1 |assistance of the implementing and supporting commands. A major driver in design of the system/equipment and support planned for it. MDA GLOSSARY, VER. 4.0 M 174 Maintenance 8 r+ u3 i7 e+ y5 t6 N+ {6 WOperations The corrective and preventive maintenance operations that do not require a deployment decision; it includes correction and subsequent validation testing and the update of relevant status configuration, maintenance, and inventory 7 i( G; H9 q2 h: q- Kdatabases. Q4 t! x" x$ kMaintenance Planning 9 o \: W. V4 o# aThe process conducted to evolve and establish maintenance concepts and 2 o7 Z9 _& i+ o: E% e* yrequirements for the lifetime of a material system; one of the principal elements of ILS. 3 h8 q( I% ~0 z# o0 H! bMAIS Mobile Automated Instrumentation Suite (USA term). MAISRC Major Automated Information System Review Council ; v3 B2 [) b8 Y6 Y6 I3 eMAJCOM Major Command (USAF). " K! J7 y) F4 l4 rMajor Automated Information . D: k( y u3 ]2 E! F" \System Review Council (MAISRC) The Senior DoD information management acquisition review board chaired by 3 O& m! }& F' mthe Assistant Secretary of Defense for Command, Control, Communication, and 7 a y& c k& L) E! f1 |& iIntelligence. See DoD Directive 8120.2.

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Major Defense Acquisition Program An acquisition program that is not a highly sensitive classified program (as ; J6 T: N8 K+ W; v3 udetermined by the Secretary of Defense) and that is: # V% U0 F/ l1 O H. ~1. Designated by the Under Secretary of Defense for Acquisition and Technology as a major defense acquisition program, or 8 C# { A( o# w* L( \+ ?2. Estimated by the Under Secretary of Defense for Acquisition and Technology to require: 1 p+ }, h' ^# x/ }a) An eventual total expenditure for research, development, test, and . @* T/ @( A* z) O+ T/ s1 h/ x) ^) zevaluation of more than $200 million in fiscal year 1980 constant dollars (approximately $300 million in fiscal year 1990 constant 2 r5 L: @. X) |" _4 Sdollars), or 6 T# A- ?3 q% |% Qb) An eventual total expenditure for procurement of more than $1 billion 3 e) ]5 g$ A! }9 W; a, _% rin fiscal year 1980 constant dollars (approximately $1.8 billion in fiscal ; B) ]6 P+ n8 N) u# xyear 1990 constant dollars). Major Modification , }: I5 N4 s) r3 w4 TA modification that in and of itself meets the criteria of acquisition category I or II $ f5 b1 T( Q6 k* {or is designated as such by the milestone decision authority. Major modifications require a Milestone IV decision unless the decision to modify results from one of - R0 o* @# a; A$ @the alternatives considered as part of the Milestone I decision process. 0 m2 g% t6 v0 C) YUpgrades are part of the Milestone 0 decision process. Major System A combination of elements that will function together to produce the capabilities required to fulfill a mission need, including hardware, equipment, software, or any combination thereof, but excluding construction or other improvements to real . E7 W! k4 M4 [- C4 r3 S6 d- K( \property. A system shall be considered a major system if it is estimated by the 8 G" q4 s& `' AUnder Secretary of Defense for Acquisition and Technology to require: 1. An eventual total expenditure for research, development, test, and # s' N- O7 P# D1 Z4 Revaluation of more than $75,000,000 in fiscal year 1980 constant dollars , v. O3 j# n7 Y. W1 N$ R Q(approximately $115,000,000 in fiscal year 1990 constant dollars), or 2. An eventual total expenditure for procurement of more than $300,000,000 in 2 r( f. a/ o* C Q# Q; _fiscal year 1980 constant dollars (approximately $540,000,000 in fiscal year ) ~8 q: c' m3 ?* b3 l1990 constant dollars). / L' l! x8 k5 V+ g; i# w' `MAM Maintenance Assist Modules. 2 Z- e/ G. y Y) D* N% hMAMDT Mean Active Maintenance Downtime (ILS term). 5 N0 R+ X: X; P, M/ KMDA GLOSSARY, VER. 4.0 M ( D3 H# W) Z) J" q$ m W% `175 Mandatory Access Control 6 W+ G/ r5 O( O/ Y8 C. s; R; cA means of restricting access to objects based on the sensitivity (as represented 3 Q8 W5 o" b" R) z; Qby a label) of the information contained in the objects and the formal authorization of subjects to access information of such sensitivity. & k; ^$ z- j& ?4 n9 PManeuverable , l: u! i1 g: m+ U% y# VReentry Vehicle (MARV) A reentry vehicle capable of performing preplanned flight maneuvers during the " X( g P. n. Y. ~reentry phase. The reentry vehicles deploy fins or other aerodynamic surfaces when they enter the atmosphere, allowing them to turn and dodge rather than + u5 T4 `. M/ D- }* v) Nfall ballistically. They have no ability to maneuver in space. 4 P# e+ K! c7 d% |1 @3 M6 `& _MANPER Manpower and Personnel ILS term). 7 Y4 ]# }( Z, s# J$ y% ~Manpower Authorizations ; C1 F% k9 \' q- R" O' ]The billets in the manpower requirements structure that are planned to be filled. Manpower Estimate Report (MER) An estimate of the number of personnel who will operate, maintain, support, and + \' [1 I& {: y' ~8 jtrain for the acquisition upon full operational deployment. The Services prepared e; t6 M, w- A q$ Q1 ethe estimates, and the SECDEF submits them to Congress 30 days prior to approval for EMD or production. ^, i6 m1 O! D5 LManpower, & V, S7 q% Y8 u; S) U* nPersonnel, Training, and 0 \' Z9 f5 `+ y) @# gSafety (MPTS) The human dimension of the complete defense weapon system. The term MPTS also encompasses the concepts and disciplines of human factors engineering and health hazard prevention. Manpower, 9 j; c0 h& T7 q; |. ?& R0 w& RPersonnel, Training, and Safety (MPTS) Profiles . x! }7 v8 d/ l; R( } Z& H) U& qA description of human dimensions and constraints involving a major system 0 r2 V- U1 U- I; n6 T6 hthroughout the system life cycle. This includes, but is not limited to, descriptions and categorizations of occupations, aptitudes, individual skills and demographics, training system characteristics and components, potential system ( P. f' U+ M: e( g9 r3 ^* z3 e+ dhazards, and other issues affecting the performance and welfare of operators, maintainers, and personnel that support existing, modified or new systems. $ W+ V. E3 Q, q6 ZMANPRINT Manpower and Personnel Integration (US Army). , D& [% ^& S- i* d9 [$ iMANTECH Manufacturing Technology. 2 o1 T! Q+ T3 V$ T# gManufacturing (or Production) Engineering : I W+ ?) v/ @5 K& W( f" ePre-production planning and operation analysis applied to specific product - R! Q- |! v; B" A% m" W& `designs. The functions of planning, specifying, and coordinating the application 5 J- K! p, v; A9 g* d `of required factory resources including: performing analyses of production operations, processes, and systems; applying new manufacturing methods, + e, p0 u$ B: x0 G0 p e: ?tooling, and equipment; controlling the introduction of engineering changes, and % }* u. U n1 H2 c" [employing cost control and quality techniques from the factory viewpoint. Manufacturing * K7 M+ b: v8 w' FOperations, Development, and Integration - f) x% s7 @5 x9 T3 pLaboratory 9 O6 s0 L% V/ O0 y( I5 v1 f5 C(MODIL) & Z8 G2 F. I% F4 b" W2 fAn SDS-peculiar integration mechanism to link product technology development 1 ~2 a1 E0 I6 c6 iconcurrently with manufacturing process and control development for a costreducing effective SDS development. Manufacturing Technology (MANTECH) Manufacturing technology refers to any action which has as its objective the timely establishment or improvement of the manufacturing processes, ) S8 f) g b( `. N- ^techniques, or equipment required to support current and projected programs, and the assurance of the ability to produce, reduce lead time, ensure economic availability of end items, reduce costs, increase efficiency, improve reliability, or to ?$ z6 V! u0 [+ s8 Z& lenhance safety and anti-pollution measures. MANTECH, per se, is the specific / I' K3 J/ y0 Z' M* yDoD program in this area. 1 _7 p, Q) C- H- QMDA GLOSSARY, VER. 4.0 M 6 q/ j* r+ u4 \9 c. g176 : U4 `+ i5 o! r2 \1 l' T& x/ tMAOC Modular Air Operations Center (JFACC term). ' j9 A; O# y' S. z' [( KMAOPR Minimum Acceptable Operational Performance Requirements. 1 b e6 n- u4 ^5 bMAP Minimum Acquisition Program. ) v5 C; D' T/ e. W0 tMAR Monthly Assessment Report (BMDO/POC term). MARCO Marine Corps.

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Marine Air . ^6 X# D0 _7 d. r7 yCommand and Control System A US Marine Corps tactical air command and control system that provides the - I# ^" o0 o* m$ L0 b# V8 Ttactical air commander with the means to command, coordinate, and control all air operations within an assigned sector and to coordinate air operations with & t- Y' L! T* U' Lother Services. It is composed of command and control agencies with . L0 |9 h9 ]3 |, d4 M+ Ecommunications-electronics equipment that incorporates a capability from manual through semiautomatic control. Mark/Markup Line by line review and approval/disapproval/modification of the defense budget 5 C; J/ z" l# ?$ u+ P! {4 Oby congressional committees. MARS Multi-warfare Assessment and Research System. 4 ^" D* q% m( n1 a! T5 h/ j4 ^MARSYSCOM US Marine Corps Systems Command, Quantico, VA 9 q: v* I# O3 U4 S- IMARV Maneuverable Reentry Vehicle. MARVIS Mid-Apogee Reentry Vehicle Intercept System. , r; `5 m$ C& o2 \2 X" I9 K" R( aMAS Mutual Assured Survival. MASINT Measurement and Signature Intelligence. % f2 d4 a3 j& I- ?MASPAR Massive Parallel Processors (TMD-GBR). Mass Raid Many Red ballistic missiles launched toward CONUS from several launch areas. * l& j4 X$ x6 n2 u) K; w2 bA mass ASAT raid consists of several ASATs attacking Blue satellites. / j0 p$ w; v3 M ]1 }* S9 DMAST Measurement and Simulation Technology-formerly Synthetic Scene Generation m: i6 v, Q, Y4 OModel (SSGM). Matching + r) w8 ]: J6 L% _2 t0 qBallistic Reentry 5 p f2 |$ F8 L7 P7 ]2 `5 E- QVehicle (MBRV) Four reentry vehicle designs (MBRV 1-4) developed to serve as threat 8 f- [0 ]; w! J) |* ^. C* Frepresentative theater targets. Matching Target Reentry Vehicle (MTRV) 2 I# t% r2 O+ l0 OThreat representative reentry vehicle developed for GMD Program by Sandia Labs. Planned for use on IFT 9-14. $ w' q0 y* A, d, @$ }7 G7 L' h9 EMaterial Fielding ) |! ^# J) I$ c$ ^Plan Plan to ensure smooth transition of system from developer to user. Materials Science The science of developing/altering and applying materials to obtain a resultant 0 w" S9 }8 F# k5 lmolecular structure with desirable physical properties and performance characteristics. (See Structures.) Also includes applying state-of-the-art . s9 F& f8 V: ~4 ~) padvanced materials in the design of new SDS components and end items. , S" k+ _# O7 T) zMATHSFA Manufacturing and Testing of LWIR Hardened Seeker FPA Assemblies. % k2 e* V- q }2 I# @1 Y$ yMDA GLOSSARY, VER. 4.0 M 177 : {8 @' E7 W9 q0 K( m& u$ p f3 kMatra BAE 9 ~1 p4 R+ U* E8 GDynamics 0 x' t; x3 b& GEuropean missile manufacturer formed in 1996 from British Aerospace Dynamics and Matra of France. MATT Mutli-mission Advanced Tactical Terminal. - _7 y1 K* K0 uMATT Radio UHF radio receiver for TRAP, TOPS, and TIBS. MATTR Mid And Terminal Tiers Review. MAX Maximum. Maximum " K8 r# Z. A$ dAttrition Maximum attrition is employed in a target-rich environment to destroy the maximum number of RVs, regardless of the type, by using all available or 1 g# J" l: Q' Q+ f5 o* {1 D6 yallocated interceptors. This option may not satisfactorily defend specific or required assets. MB Megabyte. MBA Multi-Beam Antenna. : O+ D5 _5 @# XMBE Molecular Beam Epitaxy. . l( ^+ }2 N1 w# b l8 q3 |MBFR Mutual and Balanced Force Reduction. 2 ?+ s3 X4 O* X8 w9 W9 c- zMbps Megabits per second. MBRV Maneuvering Ballistic Reentry Vehicle. 8 s: S1 l' v$ r* Z% j# w9 }, o2 U' HMC (1) Mission Control. (2) See Midcourse phase. (3) Mission Capable (ILS 2 [4 d+ U. X# M0 b! ]% zterm). (4) Military Committee. MCA Micro Channel Architecture (TelComm/Computer term). 3 r W; B; P8 |3 ^: A0 c& bMCAS Marine Corps Air Station. MCASS MTACCS Common Application Support Software. 8 K$ B7 f3 P7 L: J; E- H" F! _MCBM Midcourse Battle Manager. : P6 l5 J3 R) zMCC Mission Control Complex/Center/Console. MCCC Mobile Consolidated Command Center. MCCDC Marine Corps Combat Development Center. 9 O5 Q# B9 f0 G3 ^6 GMCCR Mission Critical Computer Resources. MCE Mission Control Element. MCG Midcourse Guidance. 6 Q1 F9 p# W8 f' b3 x' cMCI Midcourse Interceptor. MCLOR Marine Corps LORA Model (USMC ILS term). MCM Multi-Chip Module. & z: o! }, U& c- nMDA GLOSSARY, VER. 4.0 M 178 & [, _& ?" e2 u; c7 w5 f4 D; PMCOTEA Marine Corps Operational Test and Evaluation [Command]. * e. w- a0 R# i3 |0 c9 @MCP (1) Materiel Change Package (US Army term). " K0 n- y' o. S1 E& J(2) Military Construction Program. MCPDM Marine Corps Program Decision Making. MCRDAC Marine Corps Research, Development & Acquisition Command. 5 J7 B1 R/ B' J3 a* z4 H* B LMCS (1) Maneuver Control System. (2) Midcourse Sensor. ! t4 g4 f+ n1 e8 S9 \ n$ X( }MCSS (1) Midcourse Surveillance System. (2) Military Communications Satellite System. $ _/ P, [% \; }1 z/ S' NMCT Mercury Cadmium Telluride (cf. HgCdTe). 2 y' p u6 F9 p! Z5 o/ q% t9 xMCTE Mission, Course of Action, Task, and Element Control Directives. MCTL Militarily Critical Technologies List. MCTR Missile Control Technology Regime. MCV Mission Capable Vehicle. + z' b: W+ t$ I7 O+ {: \( G9 _MD Missile Defense. MDA (1) Missile Defense Agency. (2) Missile Defense Act. (3) Milestone Decision 6 J2 N* {1 ^ }1 gAuthority. (4) McDonnell-Douglas Aerospace. # B: X3 t/ w3 n* Y) g) ?MDAHWG Missile Defense Ad Hoc Working Group. MDAP Major Defense Acquisition Program. MDART Missile Defense Activities Review Team. MDBIC Missile Defense Barrel Integration Center. MDC Midcourse Data Center, Advanced Research Center, Huntsville, AL. MDCI Multi-Discipline Counterintelligence. MDDC Missile Defense Data Center, USASSDC, Huntsville, AL.

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MDP Manufacturing Data Package. - O& @" V) r. l6 qMDR (1) Medium Data Rate (TelComms/Computer term). (2) Milestone Decision Review. (3) Multi-national Defense Research. 8 Z- ]( E6 S/ k; h; ^9 m, LMDSC Missile Defense Scientific and Technical Information Center. MDSTC Missile Defense and Space Technology Center. MDT Maintenance Down Time. & l* E" a; p6 V# X& B* I$ ~MDTD Mean Downtime Documentation (ILS term). MDTOA Mean Downtime for Outside Assistance (ILS term). MDA GLOSSARY, VER. 4.0 M 179 2 |( i1 ?9 `9 e9 J1 `MDTOR Mean Downtime for Other Reasons (ILS term). 9 i2 v1 H7 F3 k7 O+ \( z" eMDTT Mean Downtime for Training (ILS term). ! }( \5 A$ p3 g: v% H3 U# f6 O! ^MDW Mass Destruction Weapons. * d* T3 w- `) }: _ME/VA Mission Essential/Vulnerable Area : m9 y7 V! d0 b1 ^9 S7 E& o' ?6 h# DMEA Mission Effectiveness Analysis (JFACC term). 0 z! M C/ s. H& i) }MEADS See Medium Extended Air Defense System. Mean Time , U% X, V& r$ `. u& A7 J5 H( fBetween Failures (MTBF) 4 o( v. f& r: l" JA measure of the reliability of an item. Defined as the total functioning life of an 1 X5 Z3 [! g8 C# s. L0 n1 Xitem divided by the total number of failures within the population during the measurement interval. The definition holds for time, rounds, miles, events, or , ]9 j9 T. k1 |3 F. e# |other measures of unit life. MTBF is a basic measure of reliability. , R0 I, ^9 z0 C1 o1 z6 H9 n: y" w5 HMean Time To 8 t+ D$ Q% J2 P4 l% ~+ m7 A( O" c- _Repair (MTTR) 1 L8 f8 |4 r' ], C8 {" RThe total elapsed time for corrective maintenance divided by the total number of 5 l5 {, ?" ~5 j+ V6 dcorrective maintenance actions during a given period of time. A basic measure 8 l# X3 `- v* Qof maintainability. Mean Time to % u5 c! t' }! h4 vRestore System , q ~( D# |7 G9 v3 \* {(MTTRS) , {: ?3 b$ k5 N% s _; tA measure of the system maintainability parameter related to availability and ' e _4 @, l; P! Oreadiness. The total corrective maintenance time associated with downing 7 O, _2 m# A! F6 x. e3 g1 R; k+ w4 ~events, divided by the total number of downing events, during a stated period of time. (Excludes time for off-system maintenance and repair of detached " R2 X9 F0 W# H8 p* Wcomponents.) MEASAT Malaysia East Asia Satellite. 4 l; Q0 N0 K/ ]4 ~Measure of Effectiveness (MOE) - [* W" n* b9 i. o* [; P% `0 hThe quantitative expression (sometimes modified by subjective judgment) of the + l* Z; Z6 B0 F& Esuccess of a system in achieving a specified objective. 0 U& T* i$ Y3 O. U7 EMEC Mission Essentially Code (ILS term). . b- u) P3 f1 i: h1 nMedium Earth Orbit (MEO) # N5 N7 j, }) VSpace vehicles characterized by orbits between 400 and 10,000 nautical miles, longer duration revolution (2 to 12 hours), longer visibility envelopes (10 minutes up to approximately 1 hour), and generally longer lifetimes. This region contains the Van Allen radiation belts where electronic components need special % D6 t# {+ P' V( d1 Fprotection. Medium Extended Air Defense System (MEADS) A lightweight, highly transportable, low-to-medium altitude air defense and theater missile defense system designed to protect critical fixed and " N7 c9 D$ Q- S% E' h* L1 U9 Hmaneuverable corps assets. MEADS superseded the Corps SAM program in , l! k2 X, j8 Q @1995. ( q" s, F* G4 v8 `8 r/ C& O& dMedium Power 4 [9 q" E3 X' a9 H5 wLasers 2 Z9 d5 ?8 F; S. r8 _% qLasers that radiate power less than 1 MW, normally used to detect, identify, : |2 V4 R6 v. J; x& P: u Xtrack, and designate a target vehicle. Medium Range 3 v# l! D' r7 ]9 S- r) N1 u3 hBallistic Missile 7 @9 H* d8 b' }+ M4 R0 D. {# T(MRBM) 2 `6 ^( b8 V% W% ?0 }1 n5 fA ballistic missile with a range from about 600 to 1,500 nautical miles. : F2 M1 B) f; B' J& Z2 F4 Y6 W" VMedium Wavelength 0 e/ ~5 m8 V* k3 K1 QInfrared (MWIR) 0 X! M, w& _" k' {/ V) G, H) ]7 a+ _Thermal radiation emitted by a source in the electromagnetic spectrum 7 m( |% Z9 t, n$ j6 V1 Yencompassing infrared wavelengths of 3 to 6 microns. 1 o( G8 c4 W) S |; E4 X* qMDA GLOSSARY, VER. 4.0 M ( {6 ]/ d6 \8 Z9 e4 t- q180 2 U6 M9 _" y9 J$ L/ iMEF Marine Expeditionary Force. 9 s; n; k- j& A3 h) VMEILSR Minimum Essential ILS Requirements (NSA term). 6 V6 f! O/ f7 d1 T. t& C( VMEL (1) Maintenance Expenditure Limit. (2) Mobile Erector Launcher. MEM (1) Mission Effectiveness Model. (2) Mission Equipment Modernization. Memorandum of Agreement (MOA) 1 B9 F- A! n8 m(1) In contract administration, an agreement between a program manager and a Contract Administration Office, establishing the scope of responsibility of the Contract Administration Office with respect to the . j) s7 ^" X0 S5 ocost and schedule surveillance functions and objectives, and/or other . Z0 @ x( a" j4 s+ Jcontract administration functions on a specific contract or program. 3 v- P; p: ?, i6 Y(2) Any written agreement in principle as to how a program will be administered. Memorandum of 1 {; k: m8 b- {7 s' X% JUnderstanding 2 O- u h% s3 o, T, M; C5 {& x(MOU) Official agreements concluded between the NATO countries' defense ministries but ranking below government level international treaties. De facto, all partners generally recognize such agreements as binding even if no legal claim could be 6 I' t y; [- l! k6 |: a& r) v4 X( b2 bbased on the rights and obligations laid down in them. MEO Medium Earth Orbit. # ?: z7 J: f, m, i9 RMER Manpower Estimate Report. 4 b8 c2 ]' m. X3 k& K. N1 EMercury ) T" B. o- D. J2 s9 KCadmium Telluride (HCT) / @/ k: O2 ?- o$ t7 q+ q2 v8 oInfrared sensing material. - Y$ C' s- ]1 e; NMES Military Essential Support.

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MESAR Multifunction Electronically Scanned Adaptive Radar (UK). % ]; p$ q [+ o I- z7 U1 ] OMESFET Metal Schottky-Gate Field Effect Transistor. Mesosphere The portion of the atmosphere from about 30 to 80 kilometers above the earth. ) U2 [& M' i, O2 j& l, TMethods $ J J) U, W7 q0 EEngineering The technique that subjects each operation of a given piece of work to close 9 ~$ C% I9 e( j1 V! l, }/ ranalysis to eliminate every unnecessary element or operation and to approach the quickest and best method of performing each necessary element or operation. It includes the improvement and standardization of methods, equipment, and working conditions; operator training; the determination of . V2 T! V$ b3 `' Tstandard times; and occasionally devising and administering various incentive plans. METO Minimum Effort Task Order. METOIA Minimum Effort Task Order Impact Assessment. METOP Minimum Effort Task Order Plan. 1 h3 q) m/ ~8 d4 n( \1 |% r9 Y VMETOR Minimum Effort Task Order Requirement. / _* P$ \4 o8 i; b# `4 [Metric (Software). An indicator, which measures some specific attribute of the software 9 d! Z& ?3 h/ U2 h6 E/ U' Qdevelopment process. 0 x9 Y5 b7 x, r& X7 v% W% pMDA GLOSSARY, VER. 4.0 M 181 ' U- M: I- i- i1 O$ aMetrology The science of measurement, including the development of measurement standards and systems for absolute and relative measurement. Used to determine conformance to technical requirements including the development of standards and systems for absolute and relative measurements. MeV Million Electron Volts. MEZ Missile Engagement Zone. , L1 i3 N6 _$ f3 B4 o" m( lMFAR Modular Multifunction Phased Array Radar. 2 O9 l" F% E0 T& p) SMFEL Medical Free Electron Laser. MFG Master Frequency Generator. MFL Multiple Folded Ladar. ) c) b/ R; C- z! f. y. tMFLOPS Million Floating Point Operations Per Second. MFP Major Force Program. MFR Memorandum For Record. MFS MFS Communications Company, Incorporated. MFSIM Multifunction Simulation (PATRIOT), Huntsville, AL. MGEP Mobile Ground Entry Point. MGLI Midcourse Ground Launched Interceptor. MGMT Management. 8 Z" O7 ]9 M1 n) IMGTS Mobile Ground Telemetry Station. MHD Magneto-Hydro-Dynamic. MHE (1) Material Handling Equipment. (2) Mobile Hauling Equipment. MHV Miniature Homing Vehicle. , Y1 U* o/ d! o1 W$ l1 Imi Statue mile (5,280 feet). + j) P; h- V6 O2 q1 JMIC Management Information Center (MDA). * I0 k) o* a3 d; wMICOM U.S. Army Missile Command, Redstone Arsenal, AL. MIDAS Missile Defense Alarm System (US). Mid-Course % e# ~7 G; L" l/ t! wDefense Segment (MDS) " W6 e% C2 o% Y: u3 sThe portion of the BMDS that defeats ballistic missiles during the period of flight between boost and atmospheric reentry. ! Y; H+ U4 d3 I/ r8 ]& Y2 `/ DMidcourse Guidance 9 }0 C: V( c5 M& a( PThe guidance applied to a missile between termination of the boost phase and ' h* \: H7 w4 Z& sthe start of the terminal phase of flight. MDA GLOSSARY, VER. 4.0 M 182 & X; s9 K3 X1 X1 R( k: q! GMidcourse (MC) Phase That portion of a ballistic missile's trajectory between the boost phase and the reentry phase when reentry vehicles and penaids travel at ballistic trajectories above the atmosphere. During this phase, a missile releases its warheads and 2 s1 t3 a+ D" w1 {" bdecoys and is no longer a single object, but rather a swarm of RVs and penaids 4 U' I# n: P' v) k% ]falling freely along present trajectories in space. l! u3 V: _% }; PMidcourse Space Experiment (MSX) Designed to provide demonstrations of midcourse acquisition and tracking from space, technology integration of optics, focal plane arrays, signal processing, etc., and collect background phenomenology measurements and target 7 L1 p2 n" d* V) m+ I7 p7 usignature measurements. Midgetman US ICBM. MIDI Musical Instrument Digital Interface. # z: p5 e: |( o G: Y7 q+ Z8 xMIDS Multi-Functional Information System (USN/NATO/Telecomm term). MIIRD Mission Issue Identification and Resolution Document. MIJI Meaconing, Intrusion, Jamming, and Interference. % W. V% j5 n% E& [7 X+ \MIL Man-in-the-Loop. MIL-HDBK Military Handbook. MIL-STD Military Standard. MILCON Military Construction. Milestone ! o. |* |7 h A0 ~Decision ; _9 k) j0 N% G0 G3 eAuthority The individual designated in accordance with criteria established by the Under * U4 O" r# T" h, {Secretary of Defense for Acquisition and Technology to approve entry of an 8 y) T$ {, |0 o; l2 _" O; }acquisition program into the next phase. ' K8 ?- D" K( |9 s$ D( x" nMilestones (MS) Major decision points that separate the phases of an acquisition program. & F" E- o) D% y c3 |Military # b# x% G1 t% f+ r; O tCapability , h5 j! L& {7 W" r% E! K9 s1 }" [5 fThe ability to achieve a specified wartime objective (win a war or battle, destroy a 0 Z% O% Y* i" u8 r; [* [target set). It includes four major components: a). Force Structure -- Numbers, ( Q6 f+ k% u7 T/ rsize and composition of the units that compromise our Defense forces; b) Modernization -- Technical sophistication of forces, units, weapon systems, and 0 L# O6 X* a& t5 Z1 R9 dequipment; c) Readiness -- The ability of forces, units, weapon systems, or 3 V" s/ B: z7 D6 c" `equipment to deliver the outputs for which they were designed; d) Sustainability ( z( \ S$ s. ~& P: r-- The ability to maintain the necessary level and duration of operational activity to achieve military objectives. Sustainability is a function of providing for and maintaining those levels of ready forces, materiel, and consumables necessary to support military effort.