航空缩略语词典

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Kinetic Kill 8 a! I j4 q1 U2 D$ `Vehicle 2 ?( N3 ^7 C! E: g3 kIntegrated + C+ v3 t$ g) f, F1 P* DTechnology Experiment (KITE) / Z! f7 N: c0 p$ {1 B4 eA series of test flights at WSMR to demonstrate HEDI technologies. KITE (1) Kuiper Infrared Technology Experiment. (2) Kinetic Kill Vehicle Integrated ) V& V& R! ?6 h$ j9 [8 UTechnology Experiment. KKV Kinetic Kill Vehicle. 6 I8 ]* t* f+ ^# k) eKKVWS Kinetic Kill Vehicle Weapon System. % R- T$ n$ f7 fKL Kill Level. 3 n K, b0 p/ }5 I% vKm Kilometer. Km/h Kilometer per hour. 7 r8 r5 n; R* w) }3 B+ d- ^7 m# \& NKm/sec Kilometer per Second. ( Z1 i/ b4 q/ e! v# ~% G* w" IKMCC Kwajalein Mission Control Center. KMR Kwajalein Missile Range. KMRSS Kwajelein Missile Range Safety System. KPP Key Performance Parameters. 4 w/ O4 {% c1 ^: q; n' [MDA GLOSSARY, VER. 4.0 K & B1 w! a! e+ _* k$ F: W159 Kr Krypton. KREMS 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. 2 W( {. e) M+ S* sKts Knots. KV Kill Vehicle. kw Kilowatt. KW Kinetic Warhead. / w# ?5 c& P* H" EMDA GLOSSARY, VER. 4.0 L 161 9 |# d0 f0 o( F0 EL&TH Lethality and Target Hardening. , @* p; t! \" ZL1SS Level 1 System Simulator. 7 y. E! q5 s I+ T! QL2SS Level 2 System Simulator - NTF. LAA Limited Access Area. ! A5 [& U; I' m! x( P, o. h2 _3 lLAAD Low Altitude Air Defense. , I# K+ C% P( V* ULAAFB Los Angeles Air Force Base, CA. 3 z, z' M5 S& V+ J2 |# rLABCOM Laboratory Command. 3 M3 a& i- `5 o+ g& nLABM Local Area Battle Manager. LABP Look Ahead Battle Planner LAC Low Authority Control. - K5 M! A2 R! \6 b, i9 m6 KLACE Laser Atmospheric Compensation Experiment (an SDIO/NRL satellite launched February 1990 and turned off July 1993). 6 F5 ~' m& V0 O! e4 T- VLACM Land Attack Cruise Missile. 5 w$ k; O' \& X L: XLADAR Laser Detection and Ranging. ( o8 o5 b, N$ O. k. |/ MLaddering Down A hypothetical technique for overcoming a terminal phase missile defense. " _+ j( p6 ~/ K3 p) \# f4 RSuccessive salvos of salvage-fused RVs attack. The detonations of one salvo disable local ABM abilities so that following salvos are able to approach the * k% I- k! W; q- _target more closely before being, in turn, intercepted. Eventually, by repeating the process, the target is reached and destroyed. LADL Lightweight Air Defense Launcher (USA TBMD term). LADS Low Altitude Demonstration System. " Y8 u# V% r, d+ N. s; CLAFB Langley AFB, VA. LAMP Large Advanced Mirror Program. $ v5 d$ v6 c- Y0 M! GLAN Local Area Network. Landsat Land Satellite (NASA program’s satellite). LANL Los Alamos National Laboratory, NM. LANTRINS Low Altitude Navigation and Targeting Infrared Night System. LAO Limited Attack Option. 7 g* U1 H$ [4 F# C2 y2 B) r# tLAPL Lead Allowance Parts List (Navy term). * ]# P" r4 A6 |8 X# j( \# e" f! [; dLARC Langley Research Center, Hampton, VA. MDA GLOSSARY, VER. 4.0 L - w1 c. c# M G( |( o0 _162 7 K2 }8 p* ^/ m5 J qLarge 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 ( e4 p$ J X9 `" k( J% U, O0 |provide high resolution or high sensitivity for detection and/or imaging. 8 O* d, h( {0 n R5 \/ eLASA Large Aperture Seismic Array. Lasant A material that can be stimulated to produce laser light. Many materials can be 0 X% S1 s" p0 d( N1 Z( p I7 Lused as lasants; these can be in solid, liquid, or gaseous form (consisting of 6 j) H) @; D& t% g8 Emolecules including excimers or atoms) or in the form of plasma (consisting of ions and electrons). Lasant materials useful in high energy lasers include carbon G/ S5 {* l5 qdioxide, carbon monoxide, deuterium fluoride, hydrogen fluoride, iodine, xenon + i' {! b/ Y' _+ ichloride, krypton fluoride, and selenium, to mention but a few. % ^! Q% r) a' V2 v- L: hLASE LIDAR Acquisition and Sizing Experiment. Laser An active electron device that converts input power into a very narrow, intense 0 ^! J2 D. s/ O) g& n0 pbeam 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 atoms to radiate in phase. Derived from Light Amplification by Stimulated Emission of Radiation and classified from Class I - Class IV according to its $ w* y/ G# w5 o: Q3 p% r: Dpotential 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 - k2 M1 E& z! a; [beam providing information on the distance and velocity of the target. # d! r" |9 A; N2 A. XLaser Guided ) d; s% D* I: {2 ]- t% ?Weapon A weapon that uses a seeker to detect laser energy reflected from a laser marker/designated target and, through signal processing, provides guidance commands to a control system. The control system then guides the weapon to 2 y* \" H9 K$ o8 |) u7 pthe point from which the laser energy is being reflected. ( C% O$ Q" M9 ?5 MLaser Imaging # s2 O- @6 W0 R* E% j) LRadar 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. . M& L8 |8 `4 ^5 K9 @! b3 I" q; @Laser Optics Technology associated with the use and control of laser beams with flux greater than 1 watt/cm2. Laser Seeker A device based on a direction sensitive receiver that detects the energy reflected , l* O+ r$ b: t( k! Ofrom a laser designated target and defines the direction of the target relative to ! P- |; U, Z: ~$ Z/ ^) i7 Fthe receiver. See also laser guided weapon. Laser Target Designating / s# ~7 h/ l& e1 J4 |; kSystem A system that is used to direct (aim or point) laser energy at a target. The 2 T8 b" _ Q, k) x" \& [system consists of the laser designator or laser target marker with its display and control components necessary to acquire the target and direct the beam of the & L0 J: [3 L- C* plaser energy thereon. Laser Tracker A device that locks on to the reflected energy from a laser marked/designated # O- L) x& f4 C h- R' k. g3 [9 E: Mand defines the direction of the target relative to itself. - K& W4 \! s8 `$ i8 ^1 K, sLaser Weapons Devices, such as photon generators, which produce a narrow beam of coherent " w' |9 g/ H; x% [radiated power greater than 1 MW. LASERCOM Laser Communications. LATS Long Wave Infrared Advanced Technology Seeker/Sensor.

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MDA GLOSSARY, VER. 4.0 L 163 Launch Azimuth Missile launch location measured in degrees clockwise from the local northpointing longitude line at the launch site. (USSPACECOM) ! t4 ^6 Y) u- P/ G6 D' ~Launch 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 $ F% J% B, ~9 O% Z1 Dof the booster type. (USSPACECOM) 7 U) m" P3 H/ sLaunch Point : U2 i5 s1 _" f1 [) M2 p! d' g) VDetermination With 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 Attack (LUA) 3 z" [. u4 K# U D( N2 K1 P/ xExecution by National Command Authorities of Single Integrated Operational 5 X8 X) |6 q9 |& @Plan forces subsequent to tactical warning of strategic nuclear attack against the United States and prior to first impact. Launch Verification 0 ^5 A+ B2 s, K6 z7 ~$ wConfirmation of a detection of a booster launch by receiving a report from a ! w; x& ~& ?* N3 o4 |' T" Y( csensor separate and independent of the sensor that initially detected a specific / f4 S1 G' j6 \6 Xbooster launch. + k& h9 s5 E; ]5 Y2 MLayered Defense A defense that consists of several sets of weapons that operates at different phases in the trajectory of a ballistic missile. Thus, there could be a first layer : E3 k" a1 V: v; M$ S/ Z9 u6 q(e.g., boost phase) of defense with remaining targets passed on to succeeding 1 z4 l' y, p2 n+ @7 N; klayers (e.g., midcourse, terminal). lb Pound. LBL Lawrence Berkeley Laboratory, Berkeley, CA. ) ?- J. Z% N$ K6 vLBM Localized Battle Management/Manager(s). ' w* B+ W9 \6 g2 eLBTS Land Based Test Site. & ~, K2 l2 o7 G# a. x& ?LCC (1) See Life-Cycle Cost. (2) Launch Control Center. LCCE (1) Life-Cycle Cost. (2) Launch Control Center. (3) Land Component Commander (JCS term). 3 ^8 E# ~5 e6 K+ ^1 H8 F. _LCCS Life-Cycle Contractor Support. LCF Launch Control Facility. " J$ j& K5 f5 \LCM (1) Life Cycle Management. (2) Lightweight Communications Module (USAF TelComms/Computer term). LCN Logistics Control Number (ILS term). LCOM Logistics Composite Model. 9 u6 F$ Q$ S) n+ K/ aLCN Logistics Control Number (ILS term). % n) u6 r4 u; t5 T* cLCS Laser Crosslink System. LDC Less Developed Country. LDS (1) Layered Defense System. (2) Lexington Discrimination System. (3) Limited Defense System. 7 Q; O% R" S. z- l8 N; uMDA GLOSSARY, VER. 4.0 L + a$ h0 A5 w, K; U- x L164 7 @7 y0 Y. _9 a- ZLE Lethality Enhancer (PAC-3). 6 q \( p& ~( g$ d+ W' Q% NLead Component/ Service 4 I/ _. E+ N) bThe DoD Component designated by SECDEF to be responsible for management of a system acquisition involving two or more DoD Components in a joint program. 5 \6 V- V$ M& f& C9 a; [9 aLEAF Law Enforcement Access Field. & ~( _8 t, S. }; ULeakage The allowable threat objects passing through a BMD system expressed as a percentage of the threat. To ensure overall system performance, permitted # S- s6 i/ b4 z) P# nleakage is “budgeted” among individual BMD phases and functions. Leakage (Max) The maximum allowable threat objects passing through a BMD system expressed ' T* X3 Z- `; O4 \+ Z8 {as a percentage of the design-to threat. To ensure overall system performance, permitted leakage is “budgeted” among individual BMD phases and functions. LEAP Lightweight Exoatmospheric Projectile. LEASAT Leased Satellite. ' \' \, V/ `* l. g. DLeast 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 0 K0 ~. h& o/ O) w2 |( X# Dauthorized tasks. The application of this privilege limits the damage that can result from accident, error, or unauthorized use. : p/ J& s! x" v4 o1 { e# s' JLED (1) Low Endoatmospheric Defense. (2) Light Emitting Diode. 5 S9 f1 ?% O7 o6 K+ K7 ZLEDI Low Endoatmospheric Defense Interceptor. 6 C! ?% Z- S) J! ELEDS (1) Low Endoatmospheric Defense System. - s+ @6 r3 ~+ K7 V. E/ g(2) Link Eleven Display System (USN term). ' Y+ {, H3 Y; O3 vLEI Low Endoatmospheric Interceptor. LEIP Link Eleven Improvement Program (USN term). LEL Low Energy Laser. 1 D2 `+ r0 N# rLELWS Low Energy Laser Weapon System. ; Z* R) {5 V9 i* s# lLEM Logistics Element Manager (ILS term). 4 a$ T2 t& A; C7 R( E: hLEO Low Earth Orbit. LETS LWIR Environment and Threat Simulation. 1 a# ^! e9 p" }# g: I- D7 K3 [9 [# sLevel of Effort (LOE) Effort of a general or supportive nature that does not produce definite end 7 C* k: j: `8 F! J. G1 i/ S' S# C$ dproducts or results, e.g. contract man-hours. Leverage (1) The advantage gained by boost-phase intercept, when a single booster 3 M" ~) q6 G/ m$ B0 \kill may eliminate many RVs and decoys before they are deployed. This could provide a favorable cost-exchange ratio for the defense and would reduce stress on later tiers of the SDS. ( b1 [2 n" M; Q, {+ r(2) In general, the power to act or influence to attain goals. ) V1 O$ A: @' G. O' iLF (1) Landing Force. (2) Low Frequency. MDA GLOSSARY, VER. 4.0 L 165 LFIE Live Flight Integration Exercise. 3 j6 c; G& j* L) vLFOV Limited Field of View. " y! x0 z: ]9 m: B/ a! RLFS Loral Federal System, Gaithersburg, MD. LFT&E Live Fire Test and Evaluation. LGB Laser Guided Bomb. LGM (1) Laser Guided Missile. * V0 a$ w; T% J- J# S8 {3 m(2) Loop Group Multiplexer. . X: \2 C7 l& \. z, A1 l6 qLGSM Light Ground Station Module (USA CECOM term). LHO Amphibious Assault Ship. 3 F# @" M# T* w* LLi Lithium. , n! l0 q6 _9 B9 i% n) q7 f" t! i) k& TLIC Low Intensity Conflict. + L5 c; H8 ? X, z Q" @5 lLIDAR Light Detection and Ranging. Life Cycle (1) The total phases through which an item passes from the time it is initially developed until the time it is either consumed or disposed of as being excess to all known materiel requirements. 8 j; }" h+ b+ o6 h' l/ _/ `(2) (Software). All the states a software or software related product passes / O6 n. c C+ Wthrough from its inception until it is no longer useful. Life-Cycle Cost & k6 J+ o, ^2 Q, G3 W(LCC) 0 n7 w5 Y+ D' {: rThe total cost to the Government of acquisition and ownership of that system / w! S3 x; d8 B* \over its useful life. It includes the cost of development, acquisition, support and, # @3 P1 P' ]; b2 H& [5 ]where applicable, disposal. Life-Cycle Management q0 X8 c* _+ c# N* Z3 r% DProcess for administering an automated information system or hardware support 4 J$ C$ A3 | @6 K* I" w/ K; l- ~system over its whole life, with emphasis on strengthening early decisions which shape costs and utility. ( y9 G* [9 y8 ILife-Cycle Model A framework containing the processes, activities, and tasks involved in the development, operation, and support of the system, spanning the life of the system from the definition of its requirements to the termination of its use. 8 w5 U4 e: [) j, t9 PLife Cycle of a % `: F+ m% V- i; N8 M+ k& iWeapon System ( W; z- G1 E8 r) J* C$ D4 r2 g( ~: P6 `All phases of the system's life including research, development, test and ) v7 E; Z; k: U! h1 [evaluation, production, deployment (inventory), operations and support, and disposal. Life Jacket The life support storage container for a Brilliant Pebbles singlet. The life jacket 8 M$ B/ u8 \4 O9 ^. Ccontains subsystems that perform power, communications, and environmental ) a7 E9 q6 H9 vprotection functions. Light Detection and Ranging 5 y' P) j* h/ o$ ^(LIDAR) A precision probing instrument used to measure concentrations of different 0 W% R5 \& t1 \0 zgasses or particulates in a given amount of atmosphere.

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Light Replicas . o) m* I2 F" E) w$ p0 J6 I(LREP) Decoys that, by virtue of shape, closely approximate an RV’s signature with little off-load penalty. LIMIDIS Limited Distribution. MDA GLOSSARY, VER. 4.0 L ( e* X6 h+ \( [( [ v166 8 C* E7 O+ |) s3 n& i9 NLimited 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 9 ~' k, f0 V/ s2 iSystem (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 Defense Act, as revised) capable of providing a highly effective defense of the United States against limited ballistic missile threats, including accidental or - w- V' N: O2 n" Wunauthorized launches or Third World attacks, but below a threshold that would bring into question strategic stability. # w& U. Z. f* G1 BLimited Operational $ r: y4 |( l$ KCapability (LOC) A point in time when the first set of sensors and weapons can be employed to , q2 w' {3 f; {7 N0 z, b5 A, |) fprovide a limited protection system. Limited 5 v+ t2 n' J6 c1 OProduction The initial production of a system in limited quantity. Part of an acquisition . R8 J4 ]0 w3 K* Z1 }* W& Z. V" Nstrategy to be used in test and evaluation for verification of design maturity, manufacturing process final proofing, and product engineering and to verify a 0 J; W( R7 w6 |' i8 F, b# m' qfactories capabilities prior to a decision to proceed with production. Decision Y3 X; c5 u; Iusually made near the end of EMD or at Milestone IIIA or equivalent. (Also 2 b# U" v6 h! Y& H$ a4 x; hcalled Low-Rate Initial Production or Pilot Production.) Limited Test Ban Treaty 5 i+ Z. p* B I7 M6 OThe bilateral Treaty signed and ratified by the United States and the (former) U.S.S.R. in 1963, which prohibits nuclear tests in all locations except $ G+ ~/ s0 ~2 Funderground, and prohibits nuclear explosions underground if they cause radioactive debris to be present outside the territorial limits of the state under # F6 x. G2 W! i6 |whose jurisdiction or control the test would be conducted. LIN Line Item Number. Linac Linear Accelerator. . P/ \" z. T: V! I' o9 w9 d0 SLine Item 8 @; h% I/ I( R8 P2 U! F(Budget) A specific program end item with its own identity (e.g., B-1B Bomber). Line of Sight (LOS) The line from sensor to target necessary for the commencement of the detection, acquisition, track, and identification of a target. Line Replaceable / x9 U8 i7 T7 a0 [* R4 w) }% d* OUnit (LRU) An essential support item removed and replaced at field level to restore end item 7 `9 a _% {$ N; nto an operationally ready condition. (Also called Weapon Replacement Assembly and Module Replaceable Unit). Link-16 TADIL-J. Link Quality Evaluation : ?0 v0 F- j4 N- F4 HThis testing of links to create bit error estimates and monitors natural or induced link interference. LIP Lethality Improvement Plan. Liquid Fuel Booster (LFB) Target booster being developed to mate with current reentry vehicles and ! ]' Y+ x: y, f e) u: Q' Y2 Semulate the short/medium range threat. LIS Laser Isotope Separation. % ?( E, \& u+ K w. M: gLITINT Literature Intelligence. MDA GLOSSARY, VER. 4.0 L - V' Y2 U8 c+ B/ \: r; F167 ; R% T# `$ H, D, K7 a* c9 z( \Live Fire Test 0 f$ r) t3 R# {And Evaluation * Z% t# V" |1 _3 l& N3 T% |3 N(LFT&E) " D( ]( m- _+ E( @. c+ N9 ]Survivability testing and lethality testing required before full-scale production. ' X7 p% x/ X& L P9 ZMust be conducted on ACAT I and II programs for: (a) A covered system (a conventional weapon system designed to provide some degree of protection to ( M" h1 J8 p) b6 x. jthe user in combat); (b) a major munition or missile program; (c) a product / G# ^# i/ T7 p1 m5 w oimprovement program that will significantly affect the survivability of a covered 2 X) }# y5 |/ W2 ^; A N9 Y7 q* ~system. 7 t, L2 M4 `% K4 Z) \LIVEX Live Exercise. / U) i+ y/ O* K% d$ ]1 JLIWA Land Information Warfare Activity. LJ Life Jacket (BE term). * r; \0 R5 i2 x0 q3 F3 j# GLL (1) Lincoln Laboratory, Lexington, MA. (2) Legislative Liaison. LLM Long Lead Material. . b6 P1 M9 w" e5 GLLNL Lawrence Livermore National Laboratory, Livermore, CA. LLTIL Long-Lead-Time Items List (ILS term). LLUM Low background LWIR Uniform Mercury Cadmium Teloride (HgCdTe). 7 _0 G! S6 J8 nLM (1) Lockheed Martin, a defense industry contractor. . q, B- n) A R/ \1 X(2) Logistics Manager (ILS term).

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LM/GES Lockheed Martin/Government Electronic Systems. 9 }. ^$ j$ U; O+ WLMA Lockheed Martin Astronautics, a defense industry contractor. LMANS Lockheed Martin Aeronautic and Naval Systems. LMC Late Midcourse. 6 [, r7 y1 l+ yLMFBR Liquid-Metal Fast Breeder Reactor. l0 }7 b) ?; f, ]& q$ x3 iLMIS Logistics Management Information System. $ b& k) J& Y1 h' B, tLNA Low Noise Amplifier. LNC Local Network Controller. : x5 S: X" _& y+ o0 B. hLNE Low Noise Exciter (Electronics Engineering term). + P, ^% G: U8 ]$ Z# uLNO Liaison Officer. ) b1 g( n7 W' {0 H' SLO (1) Local Oscillator (Electronics Engineering term). ) {: n! N+ T9 E) q" R$ p% _(2) Low Observables (LODE-related term). LOA Letter of Agreement. LOAD Low Altitude Defense. " ]& H7 c. `# ~- `LOC (1) Lines of Communication. (2) Lines of Code. 4 q, e9 r" [4 {. Z0 v(3) Limited Operational Capability. MDA GLOSSARY, VER. 4.0 L & o3 w$ q- W5 ]: m( L6 O168 LOCAAS Low Cost Autonomous Attack System (USAF term). p- x$ U, h5 _8 J8 t' ^2 {Local , q/ ^/ p! ^4 r7 P8 OAssessment of / r5 y2 v/ E; C/ vEngagement 9 l: D! R) [& g* m UThe assessment of an engagement by high-resolution fire control sensors. 7 W/ l& j# ]0 t, J. t" C( yLocal Environment $ g5 ~) \5 C. XThe ISTC Local Environment contained within each node simulates the element to the degree necessary to generate a realistic input to the Element Processor of Element Processor Emulation and provide a realistic response to the Element Processor or Element Processor Emulation. Lock On Signifies that a tracking or target-seeking system is continuously and automatically tracking a target in one or more coordinates (e.g., range, bearing, ; D3 r1 `$ W: Eelevation). LODE Laser Optics Demonstration Experiment. LODTM Large Optics Diamond Turning Machine. LOE (1) Level of Effort. (2) Letter of Evaluation (AF). . p# y/ Y3 y# _: y+ P: jLOF Lifejacket Orbital Flight (BE term). Lofted Trajectory Trajectory with an apogee greater than the minimum-energy trajectory to the - L1 s# J- N) N" `* H) Ysame range. ' I# z9 d. E/ H- e% aLOG Logistics. LOG.WIPT Logistics Working-level IPT LOGAM II Logistics Analysis Model II. LOGFAC Logistics Feasibility Analysis Capability. 0 O* s$ T" m- ?7 Y6 w3 A3 OLOGFOR Logistics Force. Logistics The science of planning and carrying out the movement and maintenance of ' o8 L n" U c$ O% l) F- bforces. In its most comprehensive sense, it includes those aspects of military 6 d4 j" k- A: s( s, o3 K7 joperations which deal with: (1) design and development, acquisition, storage, 3 L1 z' c n# Pmovement, distribution, maintenance, evacuation, and disposition of materials; 7 t# S5 V: ^* ], d4 u" O& R9 H(2) movement, evacuation, and hospitalization of personnel; (3) acquisition or 5 r$ x7 o" j: B6 Z! Fconstruction, maintenance, operation, and disposition of facilities; and (4) acquisition or furnishing of services. Logistics Support The supply and maintenance of materiel essential to proper operation of a system in the force. # E/ P; ~( P' O( [9 B) vLogistics 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 meeting system availability and wartime usage requirements. . I/ T% d( G' BMDA GLOSSARY, VER. 4.0 L 169 Logistics Support Analysis (LSA) The selective application of scientific and engineering efforts undertaken during & E V* y2 m4 K7 B: j; j3 _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 the required support; and providing the required support during the operational % J" Q3 @: v0 r. Ophase at minimum cost. 3 A8 F* h2 X! l" ]" K% U" tLogistics Support Analysis Record - Y* O$ y# n3 {; x8 [(LSAR) S* F- F7 f' B1 C4 S6 Q9 e3 oA formal tool under MIL-STD 1388-2A that uses records/forms to document ( S) U3 d* s& \( C! E2 koperations and maintenance requirements, RAM, task analyses, technical data, support/test equipment, facilities, skill evaluation, supply support, ATE and TPS, - V/ {0 ]3 b: Band transportability. LSAR is the basis for training, personnel, supply / w6 n6 g, J* d1 b5 G; N, }7 `5 ~provisioning and allowances construction, support equipment acquisition, 3 E: }' d% V6 R. v. I. Gfacilities construction and preparation, and for maintenance. + |# A1 \ `' R( ]* h) c0 g* `LOGPLAN Logistics Plan. LOGSIM Logistics Simulation Model. ; {, _. i% T: \LOI (1) Letter of Instruction. (2) Letter of Intent. LOMEZ Low Altitude Missile Engagement Zone. & D/ L6 _' K1 Y% @Long Lead Items Long Range Air Launched Target ( @; Q% g( ?0 g/ o; f8 S1 l(LRALT) ) E, j( H# N4 U8 @Those components of a system for which the times to design and fabricate are 1 g1 ~- J2 J3 V5 }% I: I+ r1 Y othe longest, and, therefore, to which an early commitment of funds may be desirable in order to meet the earliest possible date of system completion. Two-stage, air launched ballistic missile target being developed for MBRV-4. a, S" \5 x" ?2 [0 wLong Wavelength 2 b$ I9 F6 u+ g# ^( uInfrared (LWIR) Thermal radiation emitted by a source in the electromagnetic spectrum O$ g# y( {! Y9 ?( _encompassing infrared wavelengths of 6 to 30 microns. : t. ^/ D: M3 X" y& _% Z9 S" WLOR Level of Repair Analysis (ILS term). LORA Level of Repair Analysis (ILS term). . v8 F2 |5 t, FLOS (1) Line of Sight. (2) Large Optical Segment. " U3 q. R7 u$ d$ P7 TLOTS Logistics Over-The-Shore. & ~% n6 l6 {. ?- [$ eLOW Launch on Warning.

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Low Altitude Demonstration : j2 ?5 k) ^- w: r' S, CSystem (LADS) 9 K/ j2 z8 m* SPart of the SBIRS Low Program Definition and Risk Reduction (PDRR) program 0 ~. g4 r% i" Sphase. The LADS will consist of a flight experiment and extensive ground 7 ]! o+ J# r N, }. Z; Qdemonstrations by Boeing North American. The LADS flight experiment will be launched in late FY99 to demonstrate the sensor performance of a SBIRS Low * s0 Q5 Q& M/ pconcept and collect phenomenology data. : t" K y0 f B9 `2 l( U' G5 yLow Earth Orbit $ X0 z$ e5 Z9 ]5 l" u2 {9 V$ x( f(LEO) These satellites are at altitudes between 100 and 400 nautical miles. They have short duration revolutions (about 90 minutes), short visibility envelopes (2.5 minutes up to 10 minutes over a tracking station), short life spans, and are most $ G( e! m- e3 \$ A- [subject to orbital perturbations due to atmospheric drag and earth gravitational anomalies. Low Endoatmosphere ; M9 | r# x3 jThat portion of the earth's atmosphere, generally below 40 km altitude. MDA GLOSSARY, VER. 4.0 L * f- w9 q, q* l$ _7 c3 a- ]* y9 @170 H/ i3 T* ~9 i/ j0 zLow-Rate Initial / h+ e) v* [# HProduction (LRIP) 3 w, L8 r0 x6 p8 w1 pThe 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 upon successful completion of operational testing. LOWKATRER Low Weight Kinetic Energy Active Tracker. : C1 B5 P, X! J0 ]; T' @* X; C$ gLOWTRAN Atmospheric and Interstellar Background Signature Model. LPAR Large Phased Array Radar. LPD Low Probability of Detection. & s+ j4 g/ d, j/ BLPE (1) Liquid Phase Epitaxy. (2) Launch Point Estimate. LPI Low Probability of Intercept. - t+ N5 i7 f& t* ]LPS Limited Protection System. 7 E* u) ]" T, ?/ p* wLR Long Range. LRA (1) Line-Replaceable Assembly. (2) Launch and Recovery Element. 7 X( L6 r4 J. J/ gLRB Liquid Rocket Booster. ) G7 q! ?. z" kLRC Lewis Research Center, Cleveland, OH. LRE (1) Latest Revise Estimate. (2) Launch and Recovery Element. LREP Light Replicas. LRF Laser Range Finder. LRINF Longer Range Intermediate Nuclear Forces. 3 [$ b# z: s3 k2 a: d7 k: N9 ULRIP See Low-Rate Initial Production. - I- b7 P; ^! l9 ]LRIP-OT Low Rate Initial Production – Operational Testing. $ Q% g) t& y7 E, @, s2 f+ l8 ]LRTBM Long Range TBM. LRTNF Long-range Theater Nuclear Force. 5 o2 [* [& R. Q+ j8 e! Q8 G( y& t+ {" ULRU (1) Line Replaceable Units. (2) Line Replacement Units. LS Launching Stations (PATRIOT). 1 v1 l5 {; [% E. k/ }+ QLSA Logistics Support Analysis. LSAP Logistics Support Analysis Program. LSAR Logistics Support Analysis Record. ) P( ~; a/ M d$ G4 W* GLSART LSA Review Team (ILS term). LSAT Laser Satellite. 1 f" c; E0 Q6 XMDA GLOSSARY, VER. 4.0 L 171 # D, V) `* M5 ^0 D$ D( a+ K9 ULSAWG LSA Working Group. LSE Lifetime Support Engineering (ILS term). LSEA Lifetime Support Engineering Activity (ILS term). LSI Large Scale Integration (circuits). 7 K2 a* j% C' `2 r5 X! KLSRS Loral Space and Range Systems, Sunnyvale, CA. LST (1) Laser Spot Tracker. (2) Landing Ship, Tank. LSTS Launcher Station Test Site. & r; E9 a/ z8 r$ u' b! BLTA Lead Time Analysis. ! |: y* b9 P) N, Q' gLTBT Limited Test Ban Treaty. LTD Laser Target Designator. $ }+ x. r/ H" i% ^, z: _LTH Lethality and Target Hardening. LTS Low Temperature Superconductor LTV Launch Test Vehicle. ; u0 a m# l' b1 h) q5 W0 M6 G7 jLU Launch and Update. / Y3 x4 p8 `0 cLUA Launch Under Attack. LUP Limited U.S. Protection. ' j/ V/ s0 U& ~ b' f/ vLUT Limited User Test. + U7 Y" |5 L6 p0 H, dLUT/OA Limited User Test/Operational Assessment. LVS Loral Vought Systems, a defense industry contractor. f3 I; Q$ \0 R& `/ nLVT Low Volume Terminal (USN/NATO/Telecomm term). * R+ |8 ~6 W4 V, MLW Laser Weapons. LWAN Local Wide Area Net. LWIR See Long Wavelength Infrared. & U. D6 P. }" Q0 O5 yLWIR FPA (PET) Long Wavelength Infrared Focal Plane Array (Pilot-line Experiment Technology). LYTBT Low-Yield Threshold Test Ban Treaty. LZ Landing Zone.

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MDA GLOSSARY, VER. 4.0 M : t* t( h$ [% X% [5 _: `173 4 [5 F) [& }! c. z% A* X# g( dm (1) Meter. (2) Minute. & V& a( V5 S. F; m" IM (1) Model. (2) Million. (3) Mega. M&LC Missile and Launch Control. M&P Manpower and Personnel. M&S (1) Materials and Structures. (2) Modeling and Simulation. M-T-M Model – Test – Model. M/LWIR Medium/Long Wavelength Infrared. 0 \ w1 v2 ]% K- K9 D2 T4 V& Q8 S1 IM/P Manpower/Personnel. MAA Mission Area Analysis. & w. Q5 q. I, d4 Z6 {- E5 T2 SMAAG Military Assistance Advisory Group. / M& y8 _8 B% uMAB Missile Assembly Building. MAC (1) OBSOLETE. Military Airlift Command. See AMC. # s: {2 L, |- y' f, o! q- ?# [( E(2) Maintenance Allocation Chart. MACCK Multi-Application Command and Control Kit (GD term for IVIS follow-on). 7 S+ a/ E" ^2 c/ wMACCS Marine Corps Air Command and Control System. MACOM Major Army Command. MAD (1) Mission Area Deficiency. (2) Mutually Assured Destruction. {6 S) G8 v( {8 Q4 H. a- zMADCAP Mosaic Array Data Compression and Analysis Program. 5 |+ ]5 Z% H3 G; i, p7 }! B' N7 aMADS Modified Air Defense System. MAE Medium Altitude Endurance. + Z* N6 B& U7 K; KMAGTF Marine Air-Ground Task Force. Main Beam The primary directional EMR emitted from radar transmitters. + Z! R* G0 S/ H; o: q5 LMaintainer An individual responsible for retaining the major defense system in or restoring it to a specified condition. Maintenance activities include inspection, testing, servicing, classification as to serviceability, repair, rebuilding, and reclamation. # D) \- r/ G7 I( ^- fMaintenance Concept/Plan A description of maintenance considerations and constraints for system/equipment under development. A preliminary maintenance concept is & [ W7 j1 V3 _( b* A* Qdeveloped and submitted as part of the preliminary system operational concept for each alternative solution candidate by the operating command with the ; l0 I9 b A" p& wassistance 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 # F. g- W% p% }- }7 h174 Maintenance Operations The corrective and preventive maintenance operations that do not require a ! r2 {# a( c: m3 J9 i$ ]deployment decision; it includes correction and subsequent validation testing and the update of relevant status configuration, maintenance, and inventory 5 p! b* w2 I" ~4 i8 l1 n* Idatabases. 3 E6 m7 r% @* K4 b4 VMaintenance 8 @8 D( }8 ?8 Z$ `- m3 vPlanning % T" K' m: z) ?5 @9 n1 fThe process conducted to evolve and establish maintenance concepts and requirements for the lifetime of a material system; one of the principal elements of ILS. MAIS Mobile Automated Instrumentation Suite (USA term). # b( p. p- C% @MAISRC Major Automated Information System Review Council , S6 O4 `; a. C: Z+ VMAJCOM Major Command (USAF). Major Automated 4 i# |9 F2 z" `& Y0 Z- t- q3 GInformation $ C' h0 n) E( j! N1 @System Review Council (MAISRC) The Senior DoD information management acquisition review board chaired by 5 I) c1 b+ ^) G8 G/ C& rthe Assistant Secretary of Defense for Command, Control, Communication, and Intelligence. 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 9 W( X7 I( ?7 g8 u( d q2 c5 Fdetermined by the Secretary of Defense) and that is: 1. Designated by the Under Secretary of Defense for Acquisition and Technology as a major defense acquisition program, or 2. Estimated by the Under Secretary of Defense for Acquisition and Technology 6 m& X5 M# l* oto require: . F+ Q+ n$ i& V8 k) |6 Da) An eventual total expenditure for research, development, test, and evaluation of more than $200 million in fiscal year 1980 constant * s+ J- }' L& H* f7 r4 Wdollars (approximately $300 million in fiscal year 1990 constant dollars), or b) An eventual total expenditure for procurement of more than $1 billion 6 G1 \9 [+ G7 y, l. @in fiscal year 1980 constant dollars (approximately $1.8 billion in fiscal k' [0 D; R& y% m- \year 1990 constant dollars). Major Modification A modification that in and of itself meets the criteria of acquisition category I or II or is designated as such by the milestone decision authority. Major modifications ( a# L- Z. X2 B, ^! M! [: m, U9 jrequire a Milestone IV decision unless the decision to modify results from one of ; ]4 B2 w0 Y% x& {1 ?, qthe alternatives considered as part of the Milestone I decision process. 7 \" q7 S" R b& y) {Upgrades are part of the Milestone 0 decision process. Major System A combination of elements that will function together to produce the capabilities , S/ m6 W V! ` }! A \required to fulfill a mission need, including hardware, equipment, software, or any combination thereof, but excluding construction or other improvements to real property. A system shall be considered a major system if it is estimated by the Under Secretary of Defense for Acquisition and Technology to require: ! f" x6 \( O4 O6 w3 U1. An eventual total expenditure for research, development, test, and evaluation of more than $75,000,000 in fiscal year 1980 constant dollars 2 M1 x7 }8 h8 e! p5 N, d% i' Y% A(approximately $115,000,000 in fiscal year 1990 constant dollars), or ( Q) Q9 {5 z; @9 w& o2. An eventual total expenditure for procurement of more than $300,000,000 in fiscal year 1980 constant dollars (approximately $540,000,000 in fiscal year / |* v& ?! }( Q5 f/ |; `" D9 E1990 constant dollars). ' f) u0 |( v. V/ tMAM Maintenance Assist Modules. 4 Y. B1 T. B0 B0 h- h6 c' p C6 M4 EMAMDT Mean Active Maintenance Downtime (ILS term). 8 {& W5 G9 L" Z, W6 P, e7 BMDA GLOSSARY, VER. 4.0 M 175 ~( b( S" o& T! M$ d; l+ KMandatory ! O& r0 d& _* p' fAccess Control A means of restricting access to objects based on the sensitivity (as represented by a label) of the information contained in the objects and the formal " m# I' _- k: e7 J3 O! gauthorization of subjects to access information of such sensitivity. Maneuverable . ~5 o p. |# g9 h; K% RReentry Vehicle 8 A2 `8 E" F+ w, h! W% M: g4 r(MARV) A reentry vehicle capable of performing preplanned flight maneuvers during the ; ~) y7 Y* p- j; P4 Wreentry phase. The reentry vehicles deploy fins or other aerodynamic surfaces : q" M! I0 D$ g7 x3 @# xwhen they enter the atmosphere, allowing them to turn and dodge rather than , `6 b* R3 D3 tfall ballistically. They have no ability to maneuver in space. & T; f% d9 U' C0 WMANPER Manpower and Personnel ILS term). Manpower Authorizations The billets in the manpower requirements structure that are planned to be filled. : m6 J2 k' [ o x% W* \$ bManpower + R2 O3 ^2 L% MEstimate Report (MER) 6 g5 U0 ^3 B$ g! pAn estimate of the number of personnel who will operate, maintain, support, and " |1 _' S$ _3 Q5 ]/ S, b1 q" Ptrain for the acquisition upon full operational deployment. The Services prepared - @1 R, ^+ f, g' [& A: Q5 Rthe estimates, and the SECDEF submits them to Congress 30 days prior to 5 v$ \3 t! \# X! e Iapproval for EMD or production. - J6 F! \# h5 N* OManpower, " j- }* x6 N+ h7 R6 QPersonnel, Training, and Safety (MPTS) & o4 D, ?$ l* BThe human dimension of the complete defense weapon system. The term 8 K) [0 I' v1 {; i( x! xMPTS also encompasses the concepts and disciplines of human factors 8 x2 L! _7 M3 z. tengineering and health hazard prevention. 3 L/ K9 F" L0 J& q& a* GManpower, Personnel, / ~* l1 S6 l/ L9 v- HTraining, and * X& `, B1 E3 O6 s, iSafety (MPTS) Profiles A description of human dimensions and constraints involving a major system throughout the system life cycle. This includes, but is not limited to, descriptions 3 |6 b/ u0 X- Q8 M5 Tand categorizations of occupations, aptitudes, individual skills and demographics, training system characteristics and components, potential system $ f6 @7 W1 V, D& hhazards, and other issues affecting the performance and welfare of operators, maintainers, and personnel that support existing, modified or new systems. Q; F" N3 n9 M: p7 JMANPRINT Manpower and Personnel Integration (US Army). MANTECH Manufacturing Technology. Manufacturing (or Production) * a8 Z8 ~2 a5 dEngineering 7 o' i, T* Z9 _( hPre-production planning and operation analysis applied to specific product - s4 \! W" i- N' bdesigns. The functions of planning, specifying, and coordinating the application of required factory resources including: performing analyses of production & \0 V, X% T* p, T1 c7 P* voperations, processes, and systems; applying new manufacturing methods, g( q+ Y8 O5 Z" s, d5 atooling, and equipment; controlling the introduction of engineering changes, and ! b/ p0 H9 Y9 A4 d. i' W( Semploying cost control and quality techniques from the factory viewpoint. Manufacturing Operations, Development, and Integration Laboratory (MODIL) An SDS-peculiar integration mechanism to link product technology development concurrently with manufacturing process and control development for a costreducing effective SDS development. * [5 d6 f( g5 L( J! f7 uManufacturing Technology ( A5 A V9 N6 Z' h c- ~0 M& B(MANTECH) # |* c- m1 W) \0 F* i4 OManufacturing technology refers to any action which has as its objective the / p' \* F) O+ U' F r# }timely establishment or improvement of the manufacturing processes, techniques, or equipment required to support current and projected programs, and the assurance of the ability to produce, reduce lead time, ensure economic 7 D* k: p' U2 j; Q+ }% ravailability of end items, reduce costs, increase efficiency, improve reliability, or to 0 K$ O+ `# C4 Oenhance safety and anti-pollution measures. MANTECH, per se, is the specific & A6 A0 n! [; z3 kDoD program in this area. ( i5 S) O" G! V& P/ a, c) lMDA GLOSSARY, VER. 4.0 M 176 1 u! Q& _# G3 _; T | o: t% aMAOC Modular Air Operations Center (JFACC term). MAOPR Minimum Acceptable Operational Performance Requirements. " G1 z+ P8 N3 M2 q' |4 v$ v3 RMAP Minimum Acquisition Program. / W3 ]5 b) e/ Q+ Y8 \- WMAR Monthly Assessment Report (BMDO/POC term). / b1 p, M( H% n* Z" {MARCO Marine Corps.

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Marine Air Command and Control System % \! R1 J; W0 t0 ]: l, P p$ ?A US Marine Corps tactical air command and control system that provides the 0 n3 j7 O. _ U: m3 _3 @tactical air commander with the means to command, coordinate, and control all air operations within an assigned sector and to coordinate air operations with . g) T' E5 S( u; eother Services. It is composed of command and control agencies with communications-electronics equipment that incorporates a capability from manual through semiautomatic control. 0 K$ u/ r- U, L8 m, HMark/Markup Line by line review and approval/disapproval/modification of the defense budget 9 @+ p g8 E% @4 C5 R$ A' eby congressional committees. - ]! U" O1 c- yMARS Multi-warfare Assessment and Research System. MARSYSCOM US Marine Corps Systems Command, Quantico, VA ' u. e; B* u! p" b9 P5 [ PMARV Maneuverable Reentry Vehicle. MARVIS Mid-Apogee Reentry Vehicle Intercept System. $ b! Z, \" b+ h7 L' MMAS Mutual Assured Survival. MASINT Measurement and Signature Intelligence. MASPAR Massive Parallel Processors (TMD-GBR). . \- S- j% m. m9 q6 jMass Raid Many Red ballistic missiles launched toward CONUS from several launch areas. 2 R* g! y2 n* }8 \5 j8 c+ o, `A mass ASAT raid consists of several ASATs attacking Blue satellites. - H/ {7 L* i* w. b5 mMAST Measurement and Simulation Technology-formerly Synthetic Scene Generation Model (SSGM). 4 ^7 @5 V2 `& t/ T4 U6 nMatching % r6 ~3 z% @( R% h" W4 E8 zBallistic Reentry Vehicle (MBRV) Four reentry vehicle designs (MBRV 1-4) developed to serve as threat 5 t" _' D) F1 Z* krepresentative theater targets. : \' i( M8 g% l, I' u+ ?5 yMatching Target Reentry Vehicle (MTRV) 7 ^* r+ b9 z7 ~. R5 @( e5 qThreat representative reentry vehicle developed for GMD Program by Sandia 4 \1 c1 U8 w! c; V1 ELabs. Planned for use on IFT 9-14. 3 C. z0 B* a. \, ]4 _4 {7 i( Z* FMaterial Fielding Plan # Z1 @* Q' M1 U; N, \Plan to ensure smooth transition of system from developer to user. % U }( T i7 ~/ [* _# B7 X# P NMaterials Science The science of developing/altering and applying materials to obtain a resultant . E- |. I" d( s% }: @* K6 Q% K/ J; Dmolecular structure with desirable physical properties and performance 1 z" F/ r- U6 f! }' bcharacteristics. (See Structures.) Also includes applying state-of-the-art advanced materials in the design of new SDS components and end items. MATHSFA Manufacturing and Testing of LWIR Hardened Seeker FPA Assemblies. 1 R5 ]; y8 e/ T- f. W/ `MDA GLOSSARY, VER. 4.0 M ' L( K) q# c! t$ n4 P177 Matra BAE Dynamics 5 |; ~+ [- z# H( F/ cEuropean missile manufacturer formed in 1996 from British Aerospace Dynamics and Matra of France. MATT Mutli-mission Advanced Tactical Terminal. MATT Radio UHF radio receiver for TRAP, TOPS, and TIBS. 2 m% Y7 u; V: @MATTR Mid And Terminal Tiers Review. & e! z E7 w2 Z( j, q5 bMAX Maximum. Maximum ) o7 i9 }2 z, E0 l. uAttrition 7 [( Z) w: S1 C& c& L% J pMaximum attrition is employed in a target-rich environment to destroy the , c# G4 N- h3 n# |maximum number of RVs, regardless of the type, by using all available or , v- @) W+ O! b0 Jallocated interceptors. This option may not satisfactorily defend specific or 7 L5 d2 A; @ M* N) ]required assets. ( S) C* @% j! a6 @9 O0 BMB Megabyte. $ F% S* f n0 E* YMBA Multi-Beam Antenna. + L! R# J0 J1 M7 J( zMBE Molecular Beam Epitaxy. 1 Q U' p" c+ OMBFR Mutual and Balanced Force Reduction. % D% ^" g4 Z0 i: ?/ ^; `1 ]Mbps Megabits per second. MBRV Maneuvering Ballistic Reentry Vehicle. - {) ]) j5 q0 a' i$ O$ W v" HMC (1) Mission Control. (2) See Midcourse phase. (3) Mission Capable (ILS - ^. T6 s6 a5 [. j$ k4 P- Y2 K8 oterm). (4) Military Committee. ) h% x! T" q* UMCA Micro Channel Architecture (TelComm/Computer term). MCAS Marine Corps Air Station. MCASS MTACCS Common Application Support Software. MCBM Midcourse Battle Manager. MCC Mission Control Complex/Center/Console. MCCC Mobile Consolidated Command Center. MCCDC Marine Corps Combat Development Center. MCCR Mission Critical Computer Resources. ; Y5 j0 Z. b. HMCE Mission Control Element. MCG Midcourse Guidance. MCI Midcourse Interceptor. MCLOR Marine Corps LORA Model (USMC ILS term). + o3 c3 [: [' m1 RMCM Multi-Chip Module. MDA GLOSSARY, VER. 4.0 M 178 MCOTEA Marine Corps Operational Test and Evaluation [Command]. 7 I/ k; b# |4 {0 e) KMCP (1) Materiel Change Package (US Army term). z4 h. B6 n* A( g8 ](2) Military Construction Program. MCPDM Marine Corps Program Decision Making. 0 Z! v4 T- ~' I6 K1 RMCRDAC Marine Corps Research, Development & Acquisition Command. MCS (1) Maneuver Control System. (2) Midcourse Sensor. MCSS (1) Midcourse Surveillance System. (2) Military Communications Satellite System. MCT Mercury Cadmium Telluride (cf. HgCdTe). & p( R8 d2 J& e3 `! v" I; J YMCTE Mission, Course of Action, Task, and Element Control Directives. 3 s, P7 j: a* D/ K( T$ ^3 s; XMCTL Militarily Critical Technologies List. 7 g- C) s/ |7 e# c2 jMCTR Missile Control Technology Regime. ' X; ]4 R$ b- f fMCV Mission Capable Vehicle. MD Missile Defense. ! A8 E) S( f) f8 X2 z" Y! |MDA (1) Missile Defense Agency. (2) Missile Defense Act. (3) Milestone Decision ! B1 a* O; g" c+ d$ j4 a: L ZAuthority. (4) McDonnell-Douglas Aerospace. MDAHWG Missile Defense Ad Hoc Working Group. MDAP Major Defense Acquisition Program. MDART Missile Defense Activities Review Team. MDBIC Missile Defense Barrel Integration Center. - @& y: G3 L4 X8 I; r L! W# FMDC Midcourse Data Center, Advanced Research Center, Huntsville, AL. MDCI Multi-Discipline Counterintelligence. 4 C. U/ k$ ?* |% n+ rMDDC Missile Defense Data Center, USASSDC, Huntsville, AL.

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MDP Manufacturing Data Package. & Y( i6 U4 f. M) `/ oMDR (1) Medium Data Rate (TelComms/Computer term). (2) Milestone Decision Review. (3) Multi-national Defense Research. MDSC Missile Defense Scientific and Technical Information Center. MDSTC Missile Defense and Space Technology Center. MDT Maintenance Down Time. MDTD Mean Downtime Documentation (ILS term). 4 w* w5 d! j" I! t& P, C( Q1 u9 UMDTOA Mean Downtime for Outside Assistance (ILS term). MDA GLOSSARY, VER. 4.0 M 2 J$ c$ K' n- {" J/ O. v: n179 MDTOR Mean Downtime for Other Reasons (ILS term). 7 n9 y$ o! I0 F- |3 z2 }# GMDTT Mean Downtime for Training (ILS term). 1 {/ B" X& J. o( j* [) U. WMDW Mass Destruction Weapons. ME/VA Mission Essential/Vulnerable Area MEA Mission Effectiveness Analysis (JFACC term). + i6 ~% U4 Y% T3 G. b* O; |( WMEADS See Medium Extended Air Defense System. Mean Time 8 m, Z% @8 k. i! H) d& u4 VBetween Failures (MTBF) A measure of the reliability of an item. Defined as the total functioning life of an item divided by the total number of failures within the population during the measurement interval. The definition holds for time, rounds, miles, events, or & l: l4 ^% C" @$ ]3 B& J: F, oother measures of unit life. MTBF is a basic measure of reliability. % G! X; c( B& ~% u! DMean Time To Repair (MTTR) 1 s% f6 }9 S; f+ D) \The total elapsed time for corrective maintenance divided by the total number of corrective maintenance actions during a given period of time. A basic measure + w& G1 T: f2 e! eof maintainability. - _6 w; V8 I* d" F/ r' Y2 {Mean Time to Restore System (MTTRS) ( F! d; A$ v6 i, i0 q; f4 MA measure of the system maintainability parameter related to availability and # r1 S$ q9 _4 [! nreadiness. The total corrective maintenance time associated with downing . p3 Y4 F# C4 a5 y& Z! d8 E" ?+ yevents, divided by the total number of downing events, during a stated period of |0 [2 U# E/ C$ h0 l9 k otime. (Excludes time for off-system maintenance and repair of detached 9 @$ T* M+ i; x5 \5 ]1 ]3 L/ Hcomponents.) , a9 w' c! [4 u0 l" t8 NMEASAT Malaysia East Asia Satellite. Measure of Effectiveness b6 ]4 _* P* h/ L! v(MOE) ! a$ ?# g7 L% a$ c9 W' yThe quantitative expression (sometimes modified by subjective judgment) of the 0 Y4 r5 w5 D% |8 L% osuccess of a system in achieving a specified objective. MEC Mission Essentially Code (ILS term). A" ?2 M' e7 PMedium Earth Orbit (MEO) Space vehicles characterized by orbits between 400 and 10,000 nautical miles, 7 p, A# a$ ^# E, M; C+ e$ blonger duration revolution (2 to 12 hours), longer visibility envelopes (10 minutes up to approximately 1 hour), and generally longer lifetimes. This region contains . a' h4 l4 j5 i; U" G+ ?( bthe Van Allen radiation belts where electronic components need special S) t3 @/ [$ J. E7 x0 yprotection. Medium Extended Air . x, M. h0 E* h! _9 [( q S4 _Defense System (MEADS) / Y/ \, S5 c( n" q; G8 XA lightweight, highly transportable, low-to-medium altitude air defense and 8 L" c! ~! I- H" n1 u: etheater missile defense system designed to protect critical fixed and 2 t8 G+ h2 I5 lmaneuverable corps assets. MEADS superseded the Corps SAM program in 1995. 7 H2 O3 h/ Z% h$ Z9 JMedium Power " X) l0 \5 d2 a! QLasers , I; V& g9 X4 u {: v# cLasers that radiate power less than 1 MW, normally used to detect, identify, track, and designate a target vehicle. ( ~* e& @) f* p5 S6 b9 Z4 BMedium Range Ballistic Missile (MRBM) A ballistic missile with a range from about 600 to 1,500 nautical miles. 0 k- q. `% u) w' \1 mMedium . r9 G2 K$ g8 s2 \7 FWavelength : r, e% I6 Q. V( u2 o: |Infrared (MWIR) Thermal radiation emitted by a source in the electromagnetic spectrum encompassing infrared wavelengths of 3 to 6 microns. ; K$ Q7 j3 ]3 _( U: TMDA GLOSSARY, VER. 4.0 M 180 MEF Marine Expeditionary Force. MEILSR Minimum Essential ILS Requirements (NSA term). 9 k3 W* N3 J qMEL (1) Maintenance Expenditure Limit. (2) Mobile Erector Launcher. * `& Y: h3 b% Z+ C3 K, L" jMEM (1) Mission Effectiveness Model. (2) Mission Equipment Modernization. 3 t, r# K. T1 E7 ?* O! bMemorandum of , ]7 y6 [) _7 i8 m" I6 U6 vAgreement (MOA) 1 i! G4 q5 B7 ~+ E(1) In contract administration, an agreement between a program manager ~. N/ k1 a+ J2 O4 Q: W% d4 dand a Contract Administration Office, establishing the scope of responsibility of the Contract Administration Office with respect to the * E1 B o" E7 K f% xcost and schedule surveillance functions and objectives, and/or other " G! h: q/ X5 u$ Jcontract administration functions on a specific contract or program. 1 M) |% P# |! ^; s2 G(2) Any written agreement in principle as to how a program will be 2 l8 v0 Y: S$ z! @7 cadministered. ! I" S6 d7 q! u, X- Q( q0 W' IMemorandum of 8 i5 \5 ?6 J% }) DUnderstanding . {; a! @& u" _4 e m$ p(MOU) # o% |8 ?5 Q% i7 y* B* a" xOfficial 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 based on the rights and obligations laid down in them. MEO Medium Earth Orbit. MER Manpower Estimate Report. Mercury Cadmium / @1 \" w, d5 H `+ r( jTelluride (HCT) 5 ` ^1 p, g) i* Y' ~, k$ J) WInfrared sensing material. * m7 B$ O; n/ C2 z [MES Military Essential Support.

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MESAR Multifunction Electronically Scanned Adaptive Radar (UK). 2 C/ J8 B4 K) f/ rMESFET Metal Schottky-Gate Field Effect Transistor. 5 t* _! b* _) Z! Y( n7 T N2 lMesosphere The portion of the atmosphere from about 30 to 80 kilometers above the earth. Methods Engineering # D0 I4 j1 u% ]- k. X3 FThe technique that subjects each operation of a given piece of work to close analysis to eliminate every unnecessary element or operation and to approach the quickest and best method of performing each necessary element or ; |; ` b( ?0 c( f9 K! n! g8 r8 soperation. It includes the improvement and standardization of methods, ) ?; ?2 b; |+ ]4 Wequipment, and working conditions; operator training; the determination of ) h( @! ^! V0 P; n$ vstandard times; and occasionally devising and administering various incentive - A$ a' Z9 H. R c6 l0 }0 c0 c1 Tplans. " N4 `/ A% W9 |. L7 EMETO Minimum Effort Task Order. METOIA Minimum Effort Task Order Impact Assessment. / I, \. u8 R3 c- d. B& hMETOP Minimum Effort Task Order Plan. 2 s2 `" b" P0 G9 M2 pMETOR Minimum Effort Task Order Requirement. # t0 y0 n0 ?; j; {Metric (Software). An indicator, which measures some specific attribute of the software development process. MDA GLOSSARY, VER. 4.0 M : j- g) s1 S2 f0 @ d181 Metrology The science of measurement, including the development of measurement 2 q4 E; \; Q: F" Ystandards 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. 3 o o1 P* b2 p+ m+ \- s0 H: rMFAR Modular Multifunction Phased Array Radar. 7 Q b2 e2 p6 U1 Z9 I" dMFEL Medical Free Electron Laser. 3 X1 L( ?" @, A$ W" LMFG Master Frequency Generator. 8 x1 E4 e! s. h9 P) v# L3 {2 J: o; f3 HMFL Multiple Folded Ladar. MFLOPS Million Floating Point Operations Per Second. MFP Major Force Program. 9 K' p$ R& ]) q, ^( ]- ]- LMFR Memorandum For Record. MFS MFS Communications Company, Incorporated. MFSIM Multifunction Simulation (PATRIOT), Huntsville, AL. MGEP Mobile Ground Entry Point. - b- z: q/ y- M( n0 R: `7 e% ]( c% e5 QMGLI Midcourse Ground Launched Interceptor. 5 C5 s5 l! E4 K4 B5 Y$ J5 \5 c7 GMGMT Management. ) e* f, j/ U. y7 L% B$ I. qMGTS Mobile Ground Telemetry Station. 7 ~) g6 \- W4 L3 pMHD Magneto-Hydro-Dynamic. : L6 _# h$ j& f7 R' zMHE (1) Material Handling Equipment. (2) Mobile Hauling Equipment. MHV Miniature Homing Vehicle. % z8 X3 i( r8 B* w+ cmi Statue mile (5,280 feet). 4 N9 [+ q, i* g- PMIC Management Information Center (MDA). MICOM U.S. Army Missile Command, Redstone Arsenal, AL. 9 b- @/ z8 s4 D, U/ r5 _* FMIDAS Missile Defense Alarm System (US). , _/ U8 s/ X2 c, C( |$ IMid-Course 4 w1 o3 \ L. r* |' ]; k% WDefense Segment ) l" ~& W1 N0 A(MDS) The portion of the BMDS that defeats ballistic missiles during the period of flight ( s* t! U. P) M6 h0 Zbetween boost and atmospheric reentry. 2 ?5 Q: E( M/ \0 u+ K# JMidcourse Guidance / Y. J0 P) k, P& nThe guidance applied to a missile between termination of the boost phase and + S. R9 w3 p0 R# }3 A. ^) Rthe start of the terminal phase of flight. , C- Z3 w( F/ t% J0 a- oMDA GLOSSARY, VER. 4.0 M 182 % x1 f, M5 v. r+ U7 v, r6 m7 gMidcourse (MC) Phase That portion of a ballistic missile's trajectory between the boost phase and the 0 N) r* E# I. F6 [+ o7 y# Treentry phase when reentry vehicles and penaids travel at ballistic trajectories above the atmosphere. During this phase, a missile releases its warheads and 8 a; ]! D+ D0 p' pdecoys and is no longer a single object, but rather a swarm of RVs and penaids falling freely along present trajectories in space. # q6 T' T5 u$ H: A% NMidcourse Space - F8 T# ~: P$ vExperiment / ^ f% V7 A7 @6 @1 L(MSX) Designed to provide demonstrations of midcourse acquisition and tracking from " Y! B/ r) A V5 h! Lspace, technology integration of optics, focal plane arrays, signal processing, etc., and collect background phenomenology measurements and target signature measurements. Midgetman US ICBM. MIDI Musical Instrument Digital Interface. MIDS Multi-Functional Information System (USN/NATO/Telecomm term). 5 [+ F3 |, {( H/ D6 s+ xMIIRD Mission Issue Identification and Resolution Document. MIJI Meaconing, Intrusion, Jamming, and Interference. MIL Man-in-the-Loop. MIL-HDBK Military Handbook. MIL-STD Military Standard. MILCON Military Construction. 8 B$ E$ G0 T' x! j0 Z5 E9 ]! ^5 IMilestone Decision Authority ! k0 D2 k3 G9 @' c1 Y( qThe individual designated in accordance with criteria established by the Under 1 _) F, }& I% S7 rSecretary of Defense for Acquisition and Technology to approve entry of an acquisition program into the next phase. 9 Z3 P/ N$ M; S3 q T p4 A+ O6 d! D* vMilestones (MS) Major decision points that separate the phases of an acquisition program. Military 3 `4 _( V8 H5 S# w8 o9 X; x3 GCapability The ability to achieve a specified wartime objective (win a war or battle, destroy a target set). It includes four major components: a). Force Structure -- Numbers, size and composition of the units that compromise our Defense forces; b) Modernization -- Technical sophistication of forces, units, weapon systems, and equipment; c) Readiness -- The ability of forces, units, weapon systems, or 6 f. ]! m5 b$ s' ?* {3 gequipment to deliver the outputs for which they were designed; d) Sustainability 9 J, ?4 w$ [* }- b-- The ability to maintain the necessary level and duration of operational activity 9 l+ P# P" f4 y# W5 M6 q5 `to achieve military objectives. Sustainability is a function of providing for and : S% x* l% J7 h1 Y1 Smaintaining those levels of ready forces, materiel, and consumables necessary $ Q8 {! |; H& u6 }to support military effort.