航空缩略语词典

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Kinetic Kill . j# }" v0 k7 {8 gVehicle Integrated Technology 6 f. G+ \; A0 H* J! C% ~0 xExperiment (KITE) + l$ N3 n8 {" y3 l3 W4 GA series of test flights at WSMR to demonstrate HEDI technologies. 0 T+ C. v( x7 R7 N/ m" j. SKITE (1) Kuiper Infrared Technology Experiment. (2) Kinetic Kill Vehicle Integrated Technology Experiment. KKV Kinetic Kill Vehicle. & b. v: w4 ]' M' Y1 e. C2 H i: g9 qKKVWS Kinetic Kill Vehicle Weapon System. KL Kill Level. Km Kilometer. Km/h Kilometer per hour. Km/sec Kilometer per Second. : r; }) a" g& B# BKMCC Kwajalein Mission Control Center. - a; o0 X; |, O) }/ ZKMR Kwajalein Missile Range. & t, }/ I2 |# B5 OKMRSS Kwajelein Missile Range Safety System. KPP Key Performance Parameters. / R" K7 s- S8 l8 n7 u4 g3 JMDA GLOSSARY, VER. 4.0 K 159 / @+ E! H/ @! j% m/ DKr Krypton. KREMS Kiernan Reentry Measurement System. # R3 k2 R% l6 b0 o8 p5 Q/ IKSC Kennedy Space Center, FL. 8 i, A: K9 @3 x; @- |- `, xKt Kiloton. 7 {' I# |! j4 iKTF Kauai Test Facility, Barking Sands, HI. % S5 ~; ]. k {: W& q% cKTP (1) Key Technical Partner. (2) Key Test Partner (3) Key Technical Parameters. Kts Knots. d8 F* A& L1 L# i- F1 P a9 ^: J! OKV Kill Vehicle. : U8 n8 A( }2 f$ h6 Zkw Kilowatt. ' \; u2 t9 P9 IKW Kinetic Warhead. MDA GLOSSARY, VER. 4.0 L ; P( p+ U+ q6 P9 D) b2 m- Z161 + C3 U2 v% e1 G7 KL&TH Lethality and Target Hardening. # J7 Q0 \* R: B+ P) I6 pL1SS Level 1 System Simulator. L2SS Level 2 System Simulator - NTF. LAA Limited Access Area. , F3 ?' y+ {. |LAAD Low Altitude Air Defense. " O0 n$ b/ Y6 m' WLAAFB Los Angeles Air Force Base, CA. LABCOM Laboratory Command. LABM Local Area Battle Manager. & U# l) m& n) v: T4 Z4 E9 i7 ULABP Look Ahead Battle Planner LAC Low Authority Control. 6 v/ \( F' q( p8 l0 |5 f* R* O+ tLACE Laser Atmospheric Compensation Experiment (an SDIO/NRL satellite launched ( }# t5 B$ F8 E0 cFebruary 1990 and turned off July 1993). LACM Land Attack Cruise Missile. LADAR Laser Detection and Ranging. & t+ M0 Q# n' l* S" FLaddering Down A hypothetical technique for overcoming a terminal phase missile defense. Successive salvos of salvage-fused RVs attack. The detonations of one salvo ) z/ g' x' ~4 v8 }6 Udisable local ABM abilities so that following salvos are able to approach the : `2 G7 H' w1 ~+ Ttarget more closely before being, in turn, intercepted. Eventually, by repeating the process, the target is reached and destroyed. + _7 H+ J4 t. [LADL Lightweight Air Defense Launcher (USA TBMD term). , E' q8 V- Y* r% y- x1 |LADS Low Altitude Demonstration System. / N& p: |" K5 F9 ?6 uLAFB Langley AFB, VA. LAMP Large Advanced Mirror Program. LAN Local Area Network. Landsat Land Satellite (NASA program’s satellite). LANL Los Alamos National Laboratory, NM. # \/ y) ]. R$ V9 ^& lLANTRINS Low Altitude Navigation and Targeting Infrared Night System. LAO Limited Attack Option. 6 p4 V* K8 n2 E; Z( P5 qLAPL Lead Allowance Parts List (Navy term). * O, u5 W8 [) j, k1 s0 v& zLARC Langley Research Center, Hampton, VA. 5 T7 ?" u+ ^% N* Y) YMDA GLOSSARY, VER. 4.0 L 5 |; F* Q# x5 H) L# R162 Large Optics The technology of constructing and employing mirrors over 1 m aperture to direct 7 s; |- `! k8 A0 L7 C5 O" iand control high power beam weapons/systems with large coverage, or to ; G7 ~+ t7 ? W% ^1 hprovide high resolution or high sensitivity for detection and/or imaging. 6 c1 G1 f, n5 ~LASA Large Aperture Seismic Array. Lasant A material that can be stimulated to produce laser light. Many materials can be 0 M( j7 |8 W4 I/ J2 E8 i+ lused as lasants; these can be in solid, liquid, or gaseous form (consisting of molecules including excimers or atoms) or in the form of plasma (consisting of ions and electrons). Lasant materials useful in high energy lasers include carbon 6 S/ e9 k# X, ^dioxide, carbon monoxide, deuterium fluoride, hydrogen fluoride, iodine, xenon chloride, krypton fluoride, and selenium, to mention but a few. % o! S' f6 _1 {! P4 ^" h1 [' [LASE LIDAR Acquisition and Sizing Experiment. Laser An active electron device that converts input power into a very narrow, intense beam 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 % F* k" t% ~$ o. `; L9 Fatoms to radiate in phase. Derived from Light Amplification by Stimulated / X& C& E5 O# H5 y- s8 ?9 j8 jEmission of Radiation and classified from Class I - Class IV according to its 3 T9 T' u4 B: g5 j d. Ypotential 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 : x8 O& n# O5 N: ^7 s% H7 g/ X0 c+ vbeam providing information on the distance and velocity of the target. Laser Guided Weapon A weapon that uses a seeker to detect laser energy reflected from a laser marker/designated target and, through signal processing, provides guidance 8 c, M2 T' h4 \commands to a control system. The control system then guides the weapon to the point from which the laser energy is being reflected. Laser Imaging Radar 9 v! ?; c. W& {4 s. Y- LA technology whereby a laser beam can be used in a way similar to the use of a % R: C* H! {( q' z H6 h/ zradar beam to produce a high-quality image of an object. Laser Optics Technology associated with the use and control of laser beams with flux greater 6 N; {, L3 M( B7 \than 1 watt/cm2. Laser Seeker A device based on a direction sensitive receiver that detects the energy reflected " j% t0 J6 h ?% ~$ ^from a laser designated target and defines the direction of the target relative to ( K$ f& _2 {6 g9 ~- \, @the receiver. See also laser guided weapon. Laser Target Designating System A system that is used to direct (aim or point) laser energy at a target. The ' S5 |% E0 D1 h! rsystem 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 laser energy thereon. Laser Tracker A device that locks on to the reflected energy from a laser marked/designated 0 M; N1 ]" I3 a* u7 ^and defines the direction of the target relative to itself. # w1 U8 }8 X. k* TLaser Weapons Devices, such as photon generators, which produce a narrow beam of coherent ) x* J/ V5 C4 hradiated power greater than 1 MW. : v# J+ G. j7 \: SLASERCOM Laser Communications. LATS Long Wave Infrared Advanced Technology Seeker/Sensor.

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MDA GLOSSARY, VER. 4.0 L " \# i, p$ l8 h: ^163 5 R- s8 |6 ]/ ]Launch Azimuth Missile launch location measured in degrees clockwise from the local northpointing longitude line at the launch site. (USSPACECOM) 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 7 t3 D$ a7 q1 W% C; Oof the booster type. (USSPACECOM) 7 H% r3 J, W$ I# kLaunch Point Determination With computer methods, uses missile track observation to estimate the point on , Q! U& D' F( O7 ?the earth’s surface from which the missile was launched, expressed in terms of circular error probable. ' r7 l8 t+ y. e0 n0 n) A0 uLaunch Under Attack (LUA) Execution by National Command Authorities of Single Integrated Operational * b5 o& v0 t8 n& Y: P4 WPlan forces subsequent to tactical warning of strategic nuclear attack against the United States and prior to first impact. Launch Verification Confirmation of a detection of a booster launch by receiving a report from a . ^, v( }' P; V ^, Msensor 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 0 l( S' O b1 cphases in the trajectory of a ballistic missile. Thus, there could be a first layer (e.g., boost phase) of defense with remaining targets passed on to succeeding # s% L4 h" a3 O" q$ slayers (e.g., midcourse, terminal). lb Pound. . n5 t4 h) Q) c) [& h( lLBL Lawrence Berkeley Laboratory, Berkeley, CA. LBM Localized Battle Management/Manager(s). LBTS Land Based Test Site. 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). LCCS Life-Cycle Contractor Support. ! ^. J0 m/ N5 ]; V: n- [4 MLCF Launch Control Facility. LCM (1) Life Cycle Management. - m$ q+ u' E5 [8 z3 S# V(2) Lightweight Communications Module (USAF TelComms/Computer term). 6 E5 M# w6 |& h0 v5 _: d8 G' c8 [LCN Logistics Control Number (ILS term). 9 `+ W6 r7 k5 iLCOM Logistics Composite Model. 7 a. S0 Y4 j7 b8 R# GLCN Logistics Control Number (ILS term). LCS Laser Crosslink System. 1 Q ~6 Y/ u( k% l8 yLDC Less Developed Country. LDS (1) Layered Defense System. (2) Lexington Discrimination System. (3) Limited % }5 @# P1 R* j1 |0 q4 cDefense System. MDA GLOSSARY, VER. 4.0 L 164 LE Lethality Enhancer (PAC-3). + B5 t+ b9 G9 n& wLead Component/ Service * X& `1 y% c2 D ` ^4 CThe DoD Component designated by SECDEF to be responsible for management of a system acquisition involving two or more DoD Components in a joint program. 7 x" K' s- ? X8 ?/ n! k5 nLEAF Law Enforcement Access Field. ! ?6 G1 c/ V- L' P5 hLeakage The allowable threat objects passing through a BMD system expressed as a percentage of the threat. To ensure overall system performance, permitted 4 p- C, w+ Y- Mleakage is “budgeted” among individual BMD phases and functions. Leakage (Max) The maximum allowable threat objects passing through a BMD system expressed ; U) L; G: h: g W) l$ Bas a percentage of the design-to threat. To ensure overall system performance, + v( f/ I7 i) Fpermitted leakage is “budgeted” among individual BMD phases and functions. 8 E8 m$ X, d# G NLEAP Lightweight Exoatmospheric Projectile. 0 _% i" q" W$ m, g- J: \- r) [3 qLEASAT Leased Satellite. Least Privilege This principle requires that each subject in a system be granted the most : e: A+ S2 W, @) S5 A. Grestrictive set of privileges (or lowest clearance) needed for the performance of 3 ]: ]6 y7 @' e2 s4 oauthorized tasks. The application of this privilege limits the damage that can result from accident, error, or unauthorized use. 5 m+ Y9 H0 r! |( w% a) J% V8 j4 iLED (1) Low Endoatmospheric Defense. (2) Light Emitting Diode. LEDI Low Endoatmospheric Defense Interceptor. LEDS (1) Low Endoatmospheric Defense System. (2) Link Eleven Display System (USN term). % G2 P3 v7 H& zLEI Low Endoatmospheric Interceptor. ( X, Z; U; X# K0 JLEIP Link Eleven Improvement Program (USN term). LEL Low Energy Laser. LELWS Low Energy Laser Weapon System. L3 u; c& I- j: OLEM Logistics Element Manager (ILS term). LEO Low Earth Orbit. + K) G* x" W C2 r1 Y2 lLETS LWIR Environment and Threat Simulation. ' o2 @- i- G* ^Level of Effort A- ]9 i+ D5 J% L6 U) h(LOE) Effort of a general or supportive nature that does not produce definite end ! a9 ^2 B% c# ?8 \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 1 ?3 w& T" K; B3 C5 Pcould provide a favorable cost-exchange ratio for the defense and would ( G: x ?& z+ Creduce stress on later tiers of the SDS. (2) In general, the power to act or influence to attain goals. 8 v) S& A; T* g4 V V$ b" ^LF (1) Landing Force. (2) Low Frequency. $ c0 w: s+ ~/ i0 W( v1 ^' @MDA GLOSSARY, VER. 4.0 L 165 3 I. ^) }+ j! I) O: h2 ~ p$ X4 _LFIE Live Flight Integration Exercise. h6 v- u9 [8 M- `8 n/ J ULFOV Limited Field of View. 4 a# \5 \# `' c& P0 o" J' FLFS Loral Federal System, Gaithersburg, MD. - b) z$ s/ c3 X# [LFT&E Live Fire Test and Evaluation. . T# ]5 N6 W& B1 c1 P. ULGB Laser Guided Bomb. LGM (1) Laser Guided Missile. # {, g9 ]* j1 Z(2) Loop Group Multiplexer. LGSM Light Ground Station Module (USA CECOM term). - D8 z4 w! q% U8 K& v. W8 SLHO Amphibious Assault Ship. Li Lithium. 1 x. c# g# I% s cLIC Low Intensity Conflict. 3 g: n; }$ Q* R' Y7 S% a! JLIDAR Light Detection and Ranging. 8 B" V; Y+ @3 j5 M1 w0 MLife Cycle (1) The total phases through which an item passes from the time it is initially ; t1 h* f. d+ q2 G) w) Cdeveloped until the time it is either consumed or disposed of as being - J* @: O7 I3 }3 p$ pexcess to all known materiel requirements. (2) (Software). All the states a software or software related product passes . g* ]$ E$ E# X3 T! m3 tthrough 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 0 f. }( Y7 m; Y! |% sover its useful life. It includes the cost of development, acquisition, support and, where applicable, disposal. ' H& s! G! }% E$ C7 yLife-Cycle 3 M) U4 I/ o ]2 ~. qManagement Process for administering an automated information system or hardware support system over its whole life, with emphasis on strengthening early decisions which shape costs and utility. 2 N, u/ w5 D+ j3 l2 K) z) \. F& uLife-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. 5 I! e; u# p! ^* F" yLife Cycle of a Weapon System All phases of the system's life including research, development, test and ! C4 s6 A$ ?6 {4 E& ]% }. ?evaluation, production, deployment (inventory), operations and support, and disposal. . i. k1 r" X) ]7 H8 L7 oLife Jacket The life support storage container for a Brilliant Pebbles singlet. The life jacket contains subsystems that perform power, communications, and environmental protection functions. Light Detection 1 ]4 u+ \, M* Y5 W* H% B0 _and Ranging (LIDAR) A precision probing instrument used to measure concentrations of different gasses or particulates in a given amount of atmosphere.

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Light Replicas (LREP) Decoys that, by virtue of shape, closely approximate an RV’s signature with little off-load penalty. # W% K9 o% |' ]$ U% h$ D" p; rLIMIDIS Limited Distribution. , _& Z, A- S1 F$ aMDA GLOSSARY, VER. 4.0 L + C+ P$ D" ^( Y y166 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 * v) N; P1 k# J+ [System (LDS) v8 w" N; I& N! w& \The development of systems, components, and architectures for a deployable - H, _8 \% p/ T* I2 Y eanti-ballistic missile system (as described in section 232(a)(1) of the 1991 Missile , k+ w9 [# c* [( Z# g& s" J- Y1 @Defense Act, as revised) capable of providing a highly effective defense of the United States against limited ballistic missile threats, including accidental or unauthorized launches or Third World attacks, but below a threshold that would ) @ i3 G* p/ Dbring into question strategic stability. Limited ( e8 Y& [8 k H, YOperational . Y: l( g2 E% C- R& ?8 E: `Capability (LOC) : }% L; s* f; t& o6 ]+ v9 EA point in time when the first set of sensors and weapons can be employed to provide a limited protection system. Limited & }+ s' ?2 o0 d7 H- TProduction , d! ]. S! [9 l6 o: L+ \ o0 eThe initial production of a system in limited quantity. Part of an acquisition strategy to be used in test and evaluation for verification of design maturity, manufacturing process final proofing, and product engineering and to verify a 6 h- T" r1 H9 h7 s$ F3 P3 K$ r* Bfactories capabilities prior to a decision to proceed with production. Decision usually made near the end of EMD or at Milestone IIIA or equivalent. (Also called Low-Rate Initial Production or Pilot Production.) Limited Test 8 O' \. e; \' M+ vBan Treaty The 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 - e) b g$ y* f" ~$ @underground, and prohibits nuclear explosions underground if they cause ; F/ F, u% f. o/ Yradioactive debris to be present outside the territorial limits of the state under : o: H. q$ W( G. s7 q' W: T9 Owhose jurisdiction or control the test would be conducted. 6 M9 O8 p7 I% a+ b/ C( ELIN Line Item Number. $ G0 q8 T7 _" x2 }' R- Z, MLinac Linear Accelerator. ' @% L* H& w2 U7 fLine Item " l9 J5 E7 [, I3 {. W% ^(Budget) A specific program end item with its own identity (e.g., B-1B Bomber). 6 o! j' T. h# a! S, ?Line of Sight (LOS) 9 }/ M8 e' Z& I0 \7 j$ q% P$ FThe line from sensor to target necessary for the commencement of the detection, acquisition, track, and identification of a target. Line Replaceable Unit (LRU) 7 P5 p8 G5 V, D, i) B! _. cAn essential support item removed and replaced at field level to restore end item to an operationally ready condition. (Also called Weapon Replacement / a% d; O, q/ g" n! r4 Z1 EAssembly and Module Replaceable Unit). Link-16 TADIL-J. Link Quality 2 X6 v- P3 T8 G4 UEvaluation . e. ?- W/ j j. eThis testing of links to create bit error estimates and monitors natural or induced link interference. + ^: n7 b" S0 i8 | HLIP Lethality Improvement Plan. Liquid Fuel Booster (LFB) ; q9 H% w: e& N4 `Target booster being developed to mate with current reentry vehicles and - O7 A4 a3 g9 L+ G8 k, H Temulate the short/medium range threat. . w/ W# c$ P. _! {LIS Laser Isotope Separation. LITINT Literature Intelligence. MDA GLOSSARY, VER. 4.0 L 167 ) K& T. C# a' Y' u/ E2 HLive Fire Test And Evaluation (LFT&E) Survivability testing and lethality testing required before full-scale production. . c' X; {2 e2 b4 O7 l, DMust be conducted on ACAT I and II programs for: (a) A covered system (a ) z; Z5 l0 ~: iconventional 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 system. LIVEX Live Exercise. 9 j- x& p# c) n. d! J1 K8 I* dLIWA Land Information Warfare Activity. - o6 e$ a6 @" ~9 o1 _% o4 mLJ Life Jacket (BE term). / v4 y2 {" e5 g! v6 c. s+ mLL (1) Lincoln Laboratory, Lexington, MA. (2) Legislative Liaison. 2 |3 e" P6 ^1 G$ u& uLLM Long Lead Material. LLNL Lawrence Livermore National Laboratory, Livermore, CA. LLTIL Long-Lead-Time Items List (ILS term). / B& w7 u( P* PLLUM Low background LWIR Uniform Mercury Cadmium Teloride (HgCdTe). + x$ X$ D! q& JLM (1) Lockheed Martin, a defense industry contractor. (2) Logistics Manager (ILS term).

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LM/GES Lockheed Martin/Government Electronic Systems. 7 C. g. u4 L' e& ]LMA Lockheed Martin Astronautics, a defense industry contractor. " l. p0 ~3 C* FLMANS Lockheed Martin Aeronautic and Naval Systems. LMC Late Midcourse. : b! y6 E/ Z5 e, t. r) _LMFBR Liquid-Metal Fast Breeder Reactor. * E! u( f& \+ b* y; D: \LMIS Logistics Management Information System. LNA Low Noise Amplifier. , x$ ^# `3 p% N9 oLNC Local Network Controller. $ m# N3 t3 B) S4 V" RLNE Low Noise Exciter (Electronics Engineering term). LNO Liaison Officer. 6 v. B) U8 v" m$ r) G7 dLO (1) Local Oscillator (Electronics Engineering term). (2) Low Observables (LODE-related term). 1 K: d0 `' r/ y | q; q% cLOA Letter of Agreement. LOAD Low Altitude Defense. LOC (1) Lines of Communication. 5 b0 g) d3 G5 s9 H O4 L& N(2) Lines of Code. 2 S0 D* G1 B- K( ]+ {2 g(3) Limited Operational Capability. MDA GLOSSARY, VER. 4.0 L 168 0 R7 l4 p. R" W/ D, m8 S, ~LOCAAS Low Cost Autonomous Attack System (USAF term). 8 ~$ z6 A. Y# q( s( o4 I5 f7 zLocal * b/ H: x9 i y9 }1 u$ B0 V m; \$ H- cAssessment of ( j) A9 U: k U/ mEngagement The assessment of an engagement by high-resolution fire control sensors. Local ' J4 \; c8 |( [0 n8 CEnvironment The ISTC Local Environment contained within each node simulates the element to the degree necessary to generate a realistic input to the Element Processor of : C) a9 G+ w( Z3 ?Element Processor Emulation and provide a realistic response to the Element Processor or Element Processor Emulation. 0 z: ~+ g" e, m, m; N2 pLock 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, . n# K. }" I# m; p# x9 Relevation). LODE Laser Optics Demonstration Experiment. 1 p' h" U; x9 q( A% S3 t2 Z' lLODTM Large Optics Diamond Turning Machine. LOE (1) Level of Effort. (2) Letter of Evaluation (AF). LOF Lifejacket Orbital Flight (BE term). . |/ O% z7 l- v9 c2 FLofted Trajectory Trajectory with an apogee greater than the minimum-energy trajectory to the / ~8 k( D, w! @* `7 S7 [same range. 5 ^: g. o, K$ Y+ q( O4 u; nLOG Logistics. LOG.WIPT Logistics Working-level IPT LOGAM II Logistics Analysis Model II. 7 v& s$ C6 u. H3 ~; b QLOGFAC Logistics Feasibility Analysis Capability. ( ]3 ~. ^* a6 nLOGFOR Logistics Force. Logistics The science of planning and carrying out the movement and maintenance of , C( w4 _6 Y- w$ @9 i6 X( e* rforces. In its most comprehensive sense, it includes those aspects of military 6 R/ n0 A% D! H8 [ b# moperations which deal with: (1) design and development, acquisition, storage, o6 K @ s( Q6 J5 omovement, distribution, maintenance, evacuation, and disposition of materials; ; T( }2 f4 O, @/ O6 Z4 T3 ^* V(2) movement, evacuation, and hospitalization of personnel; (3) acquisition or construction, maintenance, operation, and disposition of facilities; and (4) # \3 Y$ s; E% t9 W! x' n- Xacquisition or furnishing of services. Logistics Support The supply and maintenance of materiel essential to proper operation of a system in the force. Logistics Supportability . }8 r* T& a# v' F3 |The degree to which planned logistics support (including test, measurement, and diagnostic equipment; spares and repair parts; technical data; support facilities; 7 f' O. d* y+ u, g! F* W/ Utransportation requirements; training; manpower; and software support) allow 5 g' i# L3 W+ bmeeting system availability and wartime usage requirements. $ }$ j6 r! s5 Q) eMDA GLOSSARY, VER. 4.0 L . ]) p, b. P9 T169 + ^& }* d# i5 J! Y* n9 K. s, B) WLogistics Support Analysis (LSA) 6 ~/ L+ X/ S+ x+ h a9 \! v0 dThe selective application of scientific and engineering efforts undertaken during % I& |2 F) U, othe 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 ) w1 I8 O, }( r7 _0 H% L& dphase at minimum cost. Logistics Support N6 z* [# P% O- F! W2 eAnalysis Record (LSAR) ; v" a; o. D1 m+ ?. t3 @A formal tool under MIL-STD 1388-2A that uses records/forms to document operations and maintenance requirements, RAM, task analyses, technical data, 5 H8 e, @% I0 H2 C4 psupport/test equipment, facilities, skill evaluation, supply support, ATE and TPS, ' `& ^# F9 n2 b7 Zand transportability. LSAR is the basis for training, personnel, supply provisioning and allowances construction, support equipment acquisition, 1 ^$ |! s8 t6 Z6 x5 G' yfacilities construction and preparation, and for maintenance. {- y, }) U" \- vLOGPLAN Logistics Plan. LOGSIM Logistics Simulation Model. LOI (1) Letter of Instruction. (2) Letter of Intent. LOMEZ Low Altitude Missile Engagement Zone. Long Lead Items * w9 v- a9 p8 h d' aLong Range Air # Z8 c; s4 k uLaunched Target (LRALT) " Q, c3 }0 ?: e' E' O! Y6 k4 I4 YThose components of a system for which the times to design and fabricate are * Y/ H. m9 K2 x0 ythe 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. Long Wavelength Infrared (LWIR) Thermal radiation emitted by a source in the electromagnetic spectrum encompassing infrared wavelengths of 6 to 30 microns. LOR Level of Repair Analysis (ILS term). LORA Level of Repair Analysis (ILS term). 9 R( ]3 Z+ r( _/ s yLOS (1) Line of Sight. (2) Large Optical Segment. ) d* O+ o1 I) R$ {- jLOTS Logistics Over-The-Shore. LOW Launch on Warning.

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Low Altitude Demonstration & \% f( C9 }, Q8 p7 ~System (LADS) & ]: m) _2 }4 I2 K# `( J5 p# UPart of the SBIRS Low Program Definition and Risk Reduction (PDRR) program . A# q* R2 ?. z7 Vphase. The LADS will consist of a flight experiment and extensive ground demonstrations by Boeing North American. The LADS flight experiment will be launched in late FY99 to demonstrate the sensor performance of a SBIRS Low concept and collect phenomenology data. Low Earth Orbit (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 ' Z: q: ?% P2 p+ s3 Q+ ]minutes up to 10 minutes over a tracking station), short life spans, and are most 2 ~4 v. l1 j8 e3 f& @: i. isubject to orbital perturbations due to atmospheric drag and earth gravitational anomalies. Low Endoatmosphere That portion of the earth's atmosphere, generally below 40 km altitude. MDA GLOSSARY, VER. 4.0 L Q6 h! ]9 H0 X! }: E170 Low-Rate Initial Production (LRIP) . H2 D$ V7 U2 @& IThe 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 , Y& Y% @# F: z. Lupon successful completion of operational testing. LOWKATRER Low Weight Kinetic Energy Active Tracker. % S6 L8 p& L: HLOWTRAN Atmospheric and Interstellar Background Signature Model. LPAR Large Phased Array Radar. LPD Low Probability of Detection. 9 e0 `7 R0 i* U1 nLPE (1) Liquid Phase Epitaxy. 5 E" J2 {7 a }# Z4 a7 S3 B(2) Launch Point Estimate. LPI Low Probability of Intercept. LPS Limited Protection System. LR Long Range. LRA (1) Line-Replaceable Assembly. (2) Launch and Recovery Element. # R1 W0 D6 i3 v. _' Z V# ILRB Liquid Rocket Booster. & m1 I5 Q% U* O, H5 `: KLRC Lewis Research Center, Cleveland, OH. 1 l* w( Z' }: g8 Z& F/ RLRE (1) Latest Revise Estimate. (2) Launch and Recovery Element. " _* B7 n4 s& z& t7 ~LREP Light Replicas. LRF Laser Range Finder. LRINF Longer Range Intermediate Nuclear Forces. ! ~/ z9 c& k* X4 _' B/ J7 ~LRIP See Low-Rate Initial Production. LRIP-OT Low Rate Initial Production – Operational Testing. LRTBM Long Range TBM. ) p, t& c: F9 cLRTNF Long-range Theater Nuclear Force. LRU (1) Line Replaceable Units. (2) Line Replacement Units. c$ P% ?, ?) o5 E6 A" I7 {. WLS Launching Stations (PATRIOT). 5 ~: s8 |0 b+ G+ D) z% C$ i% j9 `LSA Logistics Support Analysis. LSAP Logistics Support Analysis Program. 0 d7 H/ x- u0 z- m, OLSAR Logistics Support Analysis Record. LSART LSA Review Team (ILS term). / u: Z3 d" O$ K# k2 wLSAT Laser Satellite. MDA GLOSSARY, VER. 4.0 L ! J# j7 ~ D ]+ c' ^# ^171 - y) @- _* Y0 bLSAWG LSA Working Group. / Q5 C$ _8 }' j1 R" KLSE Lifetime Support Engineering (ILS term). LSEA Lifetime Support Engineering Activity (ILS term). LSI Large Scale Integration (circuits). - L$ [, a# \3 H6 nLSRS Loral Space and Range Systems, Sunnyvale, CA. LST (1) Laser Spot Tracker. (2) Landing Ship, Tank. LSTS Launcher Station Test Site. : O B9 f8 x- U1 e. rLTA Lead Time Analysis. ( [' S5 S; d- ^' V: Z% u) `LTBT Limited Test Ban Treaty. 5 ^) u8 [8 k* `8 s9 j: n' SLTD Laser Target Designator. LTH Lethality and Target Hardening. p5 }4 _1 |% I6 FLTS Low Temperature Superconductor LTV Launch Test Vehicle. / F4 l% x1 u) R0 CLU Launch and Update. 4 K+ q/ |1 V8 r# c! aLUA Launch Under Attack. ( _, m7 h& H$ p. P$ P( [' uLUP Limited U.S. Protection. 1 ]/ J+ A% G* I+ H X' lLUT Limited User Test. LUT/OA Limited User Test/Operational Assessment. LVS Loral Vought Systems, a defense industry contractor. LVT Low Volume Terminal (USN/NATO/Telecomm term). 5 V% d1 u* D5 o/ @8 PLW Laser Weapons. 8 @8 G3 H* N. @+ K# ~LWAN Local Wide Area Net. LWIR See Long Wavelength Infrared. F: }5 _5 r: oLWIR 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 173 m (1) Meter. (2) Minute. 0 @ z( W7 W8 }7 V- u" q$ s: C. YM (1) Model. (2) Million. (3) Mega. / t. r5 z6 R; d' [' t% RM&LC Missile and Launch Control. M&P Manpower and Personnel. & ]- T. {5 b PM&S (1) Materials and Structures. (2) Modeling and Simulation. 4 P, A3 C/ a# x! n6 c" OM-T-M Model – Test – Model. ' X/ {8 Y+ n0 O; m2 e2 OM/LWIR Medium/Long Wavelength Infrared. M/P Manpower/Personnel. MAA Mission Area Analysis. MAAG Military Assistance Advisory Group. MAB Missile Assembly Building. 9 ]+ `% V; a/ `2 _0 E; K( ?MAC (1) OBSOLETE. Military Airlift Command. See AMC. (2) Maintenance Allocation Chart. 1 f; q; b# ?0 |" [* N- F8 } YMACCK Multi-Application Command and Control Kit (GD term for IVIS follow-on). & W0 V6 C+ Z) G. a0 `' pMACCS Marine Corps Air Command and Control System. MACOM Major Army Command. MAD (1) Mission Area Deficiency. (2) Mutually Assured Destruction. MADCAP Mosaic Array Data Compression and Analysis Program. l! \ e* J7 M, j. g9 z& IMADS Modified Air Defense System. MAE Medium Altitude Endurance. MAGTF Marine Air-Ground Task Force. / g9 ]6 ` a: k; x, ~9 ZMain Beam The primary directional EMR emitted from radar transmitters. Maintainer An individual responsible for retaining the major defense system in or restoring it " p$ V! n9 b; c" M9 W5 \to a specified condition. Maintenance activities include inspection, testing, servicing, classification as to serviceability, repair, rebuilding, and reclamation. 2 A- y3 Y7 K; o6 oMaintenance Concept/Plan A description of maintenance considerations and constraints for " T* X+ f. h& m2 c+ S( @; A( zsystem/equipment under development. A preliminary maintenance concept is developed and submitted as part of the preliminary system operational concept 3 Y; v) U: N* G8 A# T; Wfor each alternative solution candidate by the operating command with the / @& k1 @: X$ ]5 f0 A+ n' h Q' passistance 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 6 H; K, G8 c1 R f; T; n. [6 W174 Maintenance Operations 5 L4 Y2 W) P0 t( }$ H/ L0 b( MThe corrective and preventive maintenance operations that do not require a deployment decision; it includes correction and subsequent validation testing 7 ~% B& J6 s: x7 B- a2 D7 xand the update of relevant status configuration, maintenance, and inventory databases. Maintenance # p3 d7 S; S" b) b" |Planning The process conducted to evolve and establish maintenance concepts and 7 b J3 X/ K: }1 X% prequirements for the lifetime of a material system; one of the principal elements ! {# C* e }' Y6 {of ILS. MAIS Mobile Automated Instrumentation Suite (USA term). MAISRC Major Automated Information System Review Council , l- O+ {/ b2 U, GMAJCOM Major Command (USAF). Major Automated Information System Review Council (MAISRC) The Senior DoD information management acquisition review board chaired by the Assistant Secretary of Defense for Command, Control, Communication, and Intelligence. See DoD Directive 8120.2.

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Major Defense Acquisition % ?( v7 h: P2 @5 `Program An acquisition program that is not a highly sensitive classified program (as f4 P" U M2 _/ I" ]; {# k* }determined 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 to require: 2 f0 y3 L* i a0 Oa) An eventual total expenditure for research, development, test, and evaluation of more than $200 million in fiscal year 1980 constant dollars (approximately $300 million in fiscal year 1990 constant dollars), or b) An eventual total expenditure for procurement of more than $1 billion in fiscal year 1980 constant dollars (approximately $1.8 billion in fiscal 1 G! J. O) o* V5 h( J5 Ayear 1990 constant dollars). 4 H0 i/ W+ O- R C4 u0 GMajor Modification ) C/ N1 `5 b& c# F8 [2 wA modification that in and of itself meets the criteria of acquisition category I or II . X2 n- N* Z" Z1 Mor is designated as such by the milestone decision authority. Major modifications 8 a: s- R4 a+ o: e, Urequire a Milestone IV decision unless the decision to modify results from one of 3 s7 C. n' J9 }0 s7 athe alternatives considered as part of the Milestone I decision process. Upgrades are part of the Milestone 0 decision process. Major System A combination of elements that will function together to produce the capabilities 7 p3 [& n2 A8 E% @3 H" Xrequired to fulfill a mission need, including hardware, equipment, software, or any combination thereof, but excluding construction or other improvements to real property. A system shall be considered a major system if it is estimated by the Under Secretary of Defense for Acquisition and Technology to require: 4 a# P( L$ b; D! a' ?6 T2 g1. An eventual total expenditure for research, development, test, and evaluation of more than $75,000,000 in fiscal year 1980 constant dollars (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 fiscal year 1980 constant dollars (approximately $540,000,000 in fiscal year 1990 constant dollars). % G" a0 G! i# gMAM Maintenance Assist Modules. |5 J. t e+ @5 F2 r" u: \! YMAMDT Mean Active Maintenance Downtime (ILS term). _9 q. d: Q0 k' _8 l9 lMDA GLOSSARY, VER. 4.0 M 175 Mandatory Access Control A means of restricting access to objects based on the sensitivity (as represented + j/ c1 [* X0 _# r9 `! Gby a label) of the information contained in the objects and the formal 2 v; @& y9 F% F+ p2 v* r. e1 Jauthorization of subjects to access information of such sensitivity. * M* K1 h9 a* Q% ^7 A6 U9 GManeuverable Reentry Vehicle (MARV) A reentry vehicle capable of performing preplanned flight maneuvers during the 7 `/ `6 o* W9 c* greentry phase. The reentry vehicles deploy fins or other aerodynamic surfaces when they enter the atmosphere, allowing them to turn and dodge rather than , w8 L9 w7 r }& L9 bfall ballistically. They have no ability to maneuver in space. MANPER Manpower and Personnel ILS term). c9 Q, j! d' T$ @, xManpower Authorizations 8 k- T( u. L# ~ [4 fThe billets in the manpower requirements structure that are planned to be filled. Manpower 2 v) X( v9 m+ p5 cEstimate Report ( h6 E( t( D. q& m+ k9 F8 D4 W(MER) An estimate of the number of personnel who will operate, maintain, support, and train for the acquisition upon full operational deployment. The Services prepared 3 h& K& e6 R% m5 h$ x8 p0 Mthe estimates, and the SECDEF submits them to Congress 30 days prior to approval for EMD or production. % e/ d% k! u6 O$ v# y: B: b! qManpower, 7 b$ S( |' c6 G$ pPersonnel, 1 h s) P5 H% R9 x' WTraining, and Safety (MPTS) X3 x' X( s, Q' t$ H( a8 ?The human dimension of the complete defense weapon system. The term - j) q/ h' a/ b) ?$ b3 ?" Q0 ^MPTS also encompasses the concepts and disciplines of human factors engineering and health hazard prevention. Manpower, 3 W9 T: a3 q$ [+ ]Personnel, ! Z I$ |8 C% O: Z0 g4 m( F6 MTraining, and Safety (MPTS) ! Y7 B% z' g' G% SProfiles A description of human dimensions and constraints involving a major system throughout the system life cycle. This includes, but is not limited to, descriptions & }* S% f& W3 c8 t8 V Hand categorizations of occupations, aptitudes, individual skills and demographics, training system characteristics and components, potential system hazards, and other issues affecting the performance and welfare of operators, maintainers, and personnel that support existing, modified or new systems. 9 O2 Q" k$ n' a& V# `/ u+ FMANPRINT Manpower and Personnel Integration (US Army). MANTECH Manufacturing Technology. Manufacturing (or / Z1 m7 o. T( g2 e/ lProduction) Engineering Pre-production planning and operation analysis applied to specific product / f) j0 u) T. d$ Z+ rdesigns. The functions of planning, specifying, and coordinating the application - X* F; V P7 ~2 s5 M) x: wof required factory resources including: performing analyses of production , `8 }) @, t9 E, A4 z9 f loperations, processes, and systems; applying new manufacturing methods, tooling, and equipment; controlling the introduction of engineering changes, and $ v" R: @$ h |4 E: zemploying cost control and quality techniques from the factory viewpoint. Manufacturing ) G5 n# Z9 q( h) A$ I6 ^) UOperations, ; q% j& G) J/ d5 Q- zDevelopment, 4 Z% u Y1 J- e- r- |and Integration # ^6 O# p" I- u- `2 WLaboratory (MODIL) An SDS-peculiar integration mechanism to link product technology development concurrently with manufacturing process and control development for a costreducing effective SDS development. Manufacturing # h. E5 M% t6 }% c$ t6 k bTechnology ! g" y' \" j( {" I9 i(MANTECH) 8 e5 D4 c0 F ^* [& m$ p0 OManufacturing technology refers to any action which has as its objective the 6 }* _ v9 m5 Gtimely establishment or improvement of the manufacturing processes, . E0 d; A8 r V1 T. X; ]techniques, or equipment required to support current and projected programs, and the assurance of the ability to produce, reduce lead time, ensure economic , Y$ j2 e" t- ?! j% d: eavailability of end items, reduce costs, increase efficiency, improve reliability, or to $ f3 F5 E" w- ~* f% r! u/ ~# zenhance safety and anti-pollution measures. MANTECH, per se, is the specific ! {* [# f7 b4 Z+ W% T0 p1 BDoD program in this area. + R. }# I3 A+ |; s- { C4 GMDA GLOSSARY, VER. 4.0 M " {" X9 c& p1 f0 k2 r. m" l, A# J176 MAOC Modular Air Operations Center (JFACC term). MAOPR Minimum Acceptable Operational Performance Requirements. ' ?8 I% V* v+ ?# n/ f$ w+ `( yMAP Minimum Acquisition Program. MAR Monthly Assessment Report (BMDO/POC term). : ]3 O9 b) G7 A0 ^$ P- v7 a3 AMARCO Marine Corps.

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Marine Air * B/ [ a3 {/ Q1 Q3 ECommand and 1 W+ j; s/ \( f: M8 CControl System A US Marine Corps tactical air command and control system that provides the tactical air commander with the means to command, coordinate, and control all air operations within an assigned sector and to coordinate air operations with ! R2 B' M/ Y, Rother Services. It is composed of command and control agencies with 5 Q& {0 b; ]& Acommunications-electronics equipment that incorporates a capability from manual ! T/ d2 }- ]+ z* H5 y' ~through semiautomatic control. 4 d, E ^0 a3 a& i& oMark/Markup Line by line review and approval/disapproval/modification of the defense budget by congressional committees. MARS Multi-warfare Assessment and Research System. MARSYSCOM US Marine Corps Systems Command, Quantico, VA ) l+ x5 O5 I; e4 r8 \MARV Maneuverable Reentry Vehicle. 8 a Z. r1 l4 @9 WMARVIS Mid-Apogee Reentry Vehicle Intercept System. . s6 `6 M. [0 r( f1 ?) ~ @MAS Mutual Assured Survival. MASINT Measurement and Signature Intelligence. MASPAR Massive Parallel Processors (TMD-GBR). # b: ~! G$ _) N6 s1 @& ~2 C$ x/ CMass Raid Many Red ballistic missiles launched toward CONUS from several launch areas. - w+ j5 L- Q& W0 ]9 F& b2 {/ e; Y, aA mass ASAT raid consists of several ASATs attacking Blue satellites. MAST Measurement and Simulation Technology-formerly Synthetic Scene Generation Model (SSGM). 1 w# u8 h+ X8 W. Y4 xMatching 6 d% `. r. t3 ~7 ABallistic Reentry Vehicle (MBRV) Four reentry vehicle designs (MBRV 1-4) developed to serve as threat representative theater targets. . _% Q. y5 ]8 p! pMatching Target Reentry Vehicle : R: }: R2 @: P(MTRV) Threat representative reentry vehicle developed for GMD Program by Sandia Labs. Planned for use on IFT 9-14. 7 f* b; i; T* t4 B$ JMaterial Fielding , o6 \* ]3 E2 R8 _+ E" V& y. NPlan " J9 O" @: p! l% J7 d: aPlan to ensure smooth transition of system from developer to user. Materials 6 f4 W3 N" _( T4 v2 @Science The science of developing/altering and applying materials to obtain a resultant # G9 d1 M. D3 }molecular structure with desirable physical properties and performance 4 s2 l( {" X' zcharacteristics. (See Structures.) Also includes applying state-of-the-art 8 O2 a! K) b @/ ?. j! A+ Dadvanced materials in the design of new SDS components and end items. MATHSFA Manufacturing and Testing of LWIR Hardened Seeker FPA Assemblies. MDA GLOSSARY, VER. 4.0 M 177 : x# q3 v( B; e- j: \, LMatra BAE Dynamics ; o4 _7 U7 m) F( hEuropean missile manufacturer formed in 1996 from British Aerospace Dynamics 1 `/ M3 U% L2 Pand Matra of France. MATT Mutli-mission Advanced Tactical Terminal. MATT Radio UHF radio receiver for TRAP, TOPS, and TIBS. MATTR Mid And Terminal Tiers Review. MAX Maximum. Maximum Attrition Maximum attrition is employed in a target-rich environment to destroy the 0 ~. l2 U; p+ p( a4 @. bmaximum number of RVs, regardless of the type, by using all available or , E7 u6 n0 a$ X Vallocated interceptors. This option may not satisfactorily defend specific or % G; d- J5 [3 z2 \required assets. $ d6 x: p$ k% m3 F# yMB Megabyte. MBA Multi-Beam Antenna. MBE Molecular Beam Epitaxy. MBFR Mutual and Balanced Force Reduction. 6 H# ]8 J. A* b: y2 OMbps Megabits per second. $ e# v9 S a& g6 c; M5 p3 v8 w: `1 ^' P+ BMBRV Maneuvering Ballistic Reentry Vehicle. MC (1) Mission Control. (2) See Midcourse phase. (3) Mission Capable (ILS 5 y# p" ]- W5 r: x8 ?& Tterm). (4) Military Committee. / a3 h' q$ U" i0 S) yMCA Micro Channel Architecture (TelComm/Computer term). % v2 K; x* [8 {5 @ B- ~MCAS Marine Corps Air Station. ( {5 x U4 j+ D5 e# G/ ^; F" I7 WMCASS 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. + x. i. O# G2 YMCE Mission Control Element. MCG Midcourse Guidance. MCI Midcourse Interceptor. MCLOR Marine Corps LORA Model (USMC ILS term). 2 z7 ~+ S: m' }" LMCM Multi-Chip Module. 3 v4 Z# y0 {+ @4 k o' eMDA GLOSSARY, VER. 4.0 M : m* K' \9 b. \# E+ P" u$ a178 $ w) F5 v; j& XMCOTEA Marine Corps Operational Test and Evaluation [Command]. MCP (1) Materiel Change Package (US Army term). " R$ r H2 i/ q! c' z; p(2) Military Construction Program. " C$ q6 ~! i% ?; A8 _; lMCPDM Marine Corps Program Decision Making. MCRDAC Marine Corps Research, Development & Acquisition Command. MCS (1) Maneuver Control System. (2) Midcourse Sensor. MCSS (1) Midcourse Surveillance System. (2) Military Communications Satellite System. ; W$ W5 F" Y, E+ H; b" TMCT Mercury Cadmium Telluride (cf. HgCdTe). MCTE Mission, Course of Action, Task, and Element Control Directives. & j+ Q5 o) w* s9 x! K0 r" O4 OMCTL Militarily Critical Technologies List. MCTR Missile Control Technology Regime. MCV Mission Capable Vehicle. ! N" a3 V* ~$ C6 l8 E( Q: FMD Missile Defense. MDA (1) Missile Defense Agency. (2) Missile Defense Act. (3) Milestone Decision Authority. (4) McDonnell-Douglas Aerospace. # s- A3 ?; J9 L" l. W# ~3 L7 w2 XMDAHWG Missile Defense Ad Hoc Working Group. MDAP Major Defense Acquisition Program. 9 t2 i7 w: s- n5 ]1 y% RMDART Missile Defense Activities Review Team. : f) V- ^/ a" C, E4 E$ GMDBIC Missile Defense Barrel Integration Center. MDC Midcourse Data Center, Advanced Research Center, Huntsville, AL. ; o( j ~) A+ }6 E) l3 }# `MDCI Multi-Discipline Counterintelligence. MDDC Missile Defense Data Center, USASSDC, Huntsville, AL.

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MDP Manufacturing Data Package. MDR (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. ( Q; D8 R X! U( o( XMDT Maintenance Down Time. MDTD Mean Downtime Documentation (ILS term). MDTOA Mean Downtime for Outside Assistance (ILS term). MDA GLOSSARY, VER. 4.0 M 179 & p& l( U2 Y; ^+ z: p. JMDTOR Mean Downtime for Other Reasons (ILS term). ( g- a4 @/ L& g: s. iMDTT Mean Downtime for Training (ILS term). ' ^0 a* A2 c6 d! \* c1 LMDW Mass Destruction Weapons. ME/VA Mission Essential/Vulnerable Area MEA Mission Effectiveness Analysis (JFACC term). MEADS See Medium Extended Air Defense System. 4 o8 a. ]8 n I4 u Z( Q) a: YMean Time Between Failures # f g: c5 s: e0 n(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 , O' n7 B. g, _1 H- P" @" U K$ Ymeasurement interval. The definition holds for time, rounds, miles, events, or other measures of unit life. MTBF is a basic measure of reliability. Mean Time To Repair (MTTR) The total elapsed time for corrective maintenance divided by the total number of , r, [* P, ?# K) G+ r. Zcorrective maintenance actions during a given period of time. A basic measure " r1 x# X: l/ N C9 fof maintainability. / c- y0 T. ]8 i8 k; eMean Time to Restore System 9 t5 ^5 w* |( `(MTTRS) A measure of the system maintainability parameter related to availability and readiness. The total corrective maintenance time associated with downing events, divided by the total number of downing events, during a stated period of 4 I; Q, L6 r( }) R* Otime. (Excludes time for off-system maintenance and repair of detached 2 D. g0 y' n8 K+ ?8 Ccomponents.) MEASAT Malaysia East Asia Satellite. ) E/ o- ]& O- E' y J% Q: J* uMeasure of ! P4 t6 X9 |) @ T7 p+ R; y0 L- I/ @& GEffectiveness & q0 S. T5 L$ d2 T3 ~(MOE) & S0 k: Y: H! z1 q' ]* uThe quantitative expression (sometimes modified by subjective judgment) of the 4 M* w" |) j$ X& O# }0 i! x/ V9 ^success of a system in achieving a specified objective. w8 d& ]' H; y# e! l6 E: H8 l- ~3 v# cMEC Mission Essentially Code (ILS term). Medium Earth Orbit (MEO) + i& f1 l+ G# t) o/ }2 LSpace vehicles characterized by orbits between 400 and 10,000 nautical miles, longer duration revolution (2 to 12 hours), longer visibility envelopes (10 minutes / Y( W# A: {1 F7 v' mup to approximately 1 hour), and generally longer lifetimes. This region contains the Van Allen radiation belts where electronic components need special # i- I, H+ v" Pprotection. Medium Extended Air 7 S- _! k& T; t; t& MDefense System (MEADS) A lightweight, highly transportable, low-to-medium altitude air defense and theater missile defense system designed to protect critical fixed and u- G% b2 N* |5 O2 t" pmaneuverable corps assets. MEADS superseded the Corps SAM program in 1995. Medium Power Lasers $ E! w' K4 {9 t4 a% \$ CLasers that radiate power less than 1 MW, normally used to detect, identify, ( {: R: R5 P& c. E7 mtrack, and designate a target vehicle. Medium Range , s( b. M3 c. d+ o7 QBallistic Missile 1 X) |# ?, x4 b |9 o% K(MRBM) A ballistic missile with a range from about 600 to 1,500 nautical miles. Medium 5 I5 q1 Y! c6 H* T6 {. l' kWavelength ! a8 h2 V- \1 {8 j% L( zInfrared (MWIR) Thermal radiation emitted by a source in the electromagnetic spectrum : R @2 A5 T7 g9 eencompassing infrared wavelengths of 3 to 6 microns. MDA GLOSSARY, VER. 4.0 M 6 x: A" e6 W! e. e180 MEF Marine Expeditionary Force. MEILSR Minimum Essential ILS Requirements (NSA term). MEL (1) Maintenance Expenditure Limit. (2) Mobile Erector Launcher. # x* B, ~6 R; N, zMEM (1) Mission Effectiveness Model. (2) Mission Equipment Modernization. , _( T" y' K1 `$ H* J XMemorandum of % Y# Y2 e% P- X6 ^1 r# G$ T; cAgreement (MOA) (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 cost and schedule surveillance functions and objectives, and/or other & M+ |. {% V+ X/ U7 E/ ycontract administration functions on a specific contract or program. ( c X3 B/ t& y# [1 S3 ^: S x3 ~7 A( g(2) Any written agreement in principle as to how a program will be administered. Memorandum of Understanding G) n) v) U! H% I- ?2 S(MOU) 3 n/ W0 ]& l2 g1 d2 iOfficial agreements concluded between the NATO countries' defense ministries ( ?6 U7 G O6 }( y3 K; Cbut ranking below government level international treaties. De facto, all partners generally recognize such agreements as binding even if no legal claim could be $ O3 j" u( o9 ~0 V; ^1 }7 Tbased on the rights and obligations laid down in them. 4 S" Z) h' A9 aMEO Medium Earth Orbit. MER Manpower Estimate Report. Mercury Cadmium Telluride (HCT) Infrared sensing material. MES Military Essential Support.

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MESAR Multifunction Electronically Scanned Adaptive Radar (UK). ; z0 T2 C4 }! H' R2 K3 ]MESFET Metal Schottky-Gate Field Effect Transistor. * w* L1 J) C- `$ [6 W2 EMesosphere The portion of the atmosphere from about 30 to 80 kilometers above the earth. Methods Engineering ! G5 F+ J. c8 r1 O n/ NThe technique that subjects each operation of a given piece of work to close ; F' J4 J' U6 Kanalysis to eliminate every unnecessary element or operation and to approach ! W5 t: B% ?4 }* N3 K" D; nthe 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 4 o- [* w. U/ lstandard times; and occasionally devising and administering various incentive plans. 6 x% P' A5 [0 R5 d, PMETO Minimum Effort Task Order. 0 ]5 a* y0 @* lMETOIA Minimum Effort Task Order Impact Assessment. METOP Minimum Effort Task Order Plan. METOR Minimum Effort Task Order Requirement. Metric (Software). An indicator, which measures some specific attribute of the software development process. ) w. R! a! Y, g8 l: jMDA GLOSSARY, VER. 4.0 M 181 Metrology The science of measurement, including the development of measurement ) M$ L+ } W. s- T& nstandards and systems for absolute and relative measurement. Used to determine conformance to technical requirements including the development of & f" W4 [8 ~7 n" ]8 c) ostandards and systems for absolute and relative measurements. MeV Million Electron Volts. / L4 x* Q7 p7 G- {( l; LMEZ Missile Engagement Zone. MFAR Modular Multifunction Phased Array Radar. ; {. n! }6 i0 `2 sMFEL Medical Free Electron Laser. # s% K1 K, u! f9 WMFG Master Frequency Generator. 8 K2 z; v9 d7 ?* I0 f+ \7 b) jMFL Multiple Folded Ladar. MFLOPS Million Floating Point Operations Per Second. * Z; j( f5 T6 q8 f: QMFP Major Force Program. + I" G) b3 d% \$ P, V7 LMFR Memorandum For Record. MFS MFS Communications Company, Incorporated. 8 c; y# E6 m+ s5 OMFSIM Multifunction Simulation (PATRIOT), Huntsville, AL. MGEP Mobile Ground Entry Point. X* _6 @( y# E vMGLI Midcourse Ground Launched Interceptor. - `* t& }- a5 s* n$ z1 wMGMT Management. MGTS Mobile Ground Telemetry Station. 8 O5 {! ^8 X4 {# ]# k5 zMHD Magneto-Hydro-Dynamic. MHE (1) Material Handling Equipment. (2) Mobile Hauling Equipment. 7 v8 Q( b- h( h& Z' I. DMHV Miniature Homing Vehicle. mi Statue mile (5,280 feet). $ m8 b1 d8 w1 |+ ?1 g- M! LMIC Management Information Center (MDA). V* G/ q# `+ vMICOM U.S. Army Missile Command, Redstone Arsenal, AL. # ^. W X7 m! ~9 G+ gMIDAS Missile Defense Alarm System (US). 6 p8 {2 b9 V3 @Mid-Course # S1 s( q S; _1 W0 }Defense Segment (MDS) The portion of the BMDS that defeats ballistic missiles during the period of flight % n% L( Q) t+ I' Ebetween boost and atmospheric reentry. Midcourse Guidance 6 C$ ^- T& E: }" s8 o" \The guidance applied to a missile between termination of the boost phase and ( J1 V- r( `6 o9 U* o+ R6 ?3 Qthe start of the terminal phase of flight. 5 k8 A- M7 W$ M- M( v/ FMDA GLOSSARY, VER. 4.0 M 182 Midcourse (MC) . Z+ [6 a. E q* e* k4 R6 ~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 decoys and is no longer a single object, but rather a swarm of RVs and penaids % Q q- H3 z1 _# |7 F, Efalling freely along present trajectories in space. ! p5 S* W7 X% H' a( r. VMidcourse Space . r9 v. F1 W7 u4 qExperiment (MSX) 5 } E3 J/ ~9 J: A1 r0 \+ o0 a1 G( vDesigned to provide demonstrations of midcourse acquisition and tracking from ' ]6 o! n* K+ r1 @space, technology integration of optics, focal plane arrays, signal processing, etc., and collect background phenomenology measurements and target ( j8 M( J' s9 xsignature measurements. Midgetman US ICBM. MIDI Musical Instrument Digital Interface. , u# y: U; X/ D6 _2 y! w( uMIDS Multi-Functional Information System (USN/NATO/Telecomm term). 8 r3 m( W! }% S5 pMIIRD Mission Issue Identification and Resolution Document. 9 O* g. Z* ?. Y& _MIJI Meaconing, Intrusion, Jamming, and Interference. MIL Man-in-the-Loop. MIL-HDBK Military Handbook. MIL-STD Military Standard. MILCON Military Construction. ( @: R, O+ X& bMilestone - N/ C) E. q! bDecision 8 M2 L+ T) X& L- p `Authority ) p9 b# E3 |' [4 ^4 X4 M& kThe individual designated in accordance with criteria established by the Under Secretary of Defense for Acquisition and Technology to approve entry of an 6 c, c3 x' q" i; C3 P L3 s( yacquisition program into the next phase. Milestones (MS) Major decision points that separate the phases of an acquisition program. Military Capability 0 Q7 i* z+ k4 m) _ H1 ^- eThe 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, 6 U' f% R9 u3 |3 D- y& i5 Usize and composition of the units that compromise our Defense forces; b) : i p5 Q- c# D5 h) J5 WModernization -- Technical sophistication of forces, units, weapon systems, and . f h. b& j2 U( M; cequipment; c) Readiness -- The ability of forces, units, weapon systems, or equipment to deliver the outputs for which they were designed; d) Sustainability : h( y6 }2 T1 J3 d$ K-- The ability to maintain the necessary level and duration of operational activity - I3 _9 k+ Y2 p$ `/ X. Vto achieve military objectives. Sustainability is a function of providing for and 8 a6 P. } z( g D7 |; [( omaintaining those levels of ready forces, materiel, and consumables necessary to support military effort.