航空缩略语词典

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Kinetic Kill Vehicle ' E8 w$ {8 M2 c' G5 [Integrated % a" X" ~' p' sTechnology S" \- P. q8 Q) Z7 x8 FExperiment (KITE) : d% O: ?$ h- B0 IA series of test flights at WSMR to demonstrate HEDI technologies. KITE (1) Kuiper Infrared Technology Experiment. (2) Kinetic Kill Vehicle Integrated Technology Experiment. : d8 @% b, g" ]0 N2 M) YKKV Kinetic Kill Vehicle. * W) J; e y5 E3 GKKVWS Kinetic Kill Vehicle Weapon System. & |: h& U8 y: }0 F# o) lKL Kill Level. Km Kilometer. ) i! W% ^ g1 \Km/h Kilometer per hour. 4 g; `4 S6 c) o0 f: ]Km/sec Kilometer per Second. KMCC Kwajalein Mission Control Center. KMR Kwajalein Missile Range. KMRSS Kwajelein Missile Range Safety System. KPP Key Performance Parameters. + Z( w/ [7 A0 _; _; _2 h5 |MDA GLOSSARY, VER. 4.0 K 0 h8 i; K0 A: ?; v( ?5 |% F. g159 , [( ~9 b* I1 bKr Krypton. * _9 W; @/ H4 V8 a8 x4 tKREMS Kiernan Reentry Measurement System. KSC Kennedy Space Center, FL. Kt Kiloton. 8 ?- N- `; B+ Q8 DKTF Kauai Test Facility, Barking Sands, HI. KTP (1) Key Technical Partner. (2) Key Test Partner (3) Key Technical Parameters. Kts Knots. 2 f# U: `' ?6 ?KV Kill Vehicle. kw Kilowatt. KW Kinetic Warhead. 1 v: M' X. w2 u( WMDA GLOSSARY, VER. 4.0 L 161 6 @9 ~$ l) k! O. _$ ]L&TH Lethality and Target Hardening. 7 O2 o) J' T9 z6 k/ U7 K# HL1SS Level 1 System Simulator. L2SS Level 2 System Simulator - NTF. LAA Limited Access Area. LAAD Low Altitude Air Defense. 3 |( a# @$ n* o; q/ b) f- s% YLAAFB Los Angeles Air Force Base, CA. LABCOM Laboratory Command. LABM Local Area Battle Manager. # |, F5 A" z3 K3 ~* B0 @) zLABP Look Ahead Battle Planner 2 z+ A' e4 i2 g% j) I2 f+ T) g' hLAC Low Authority Control. LACE Laser Atmospheric Compensation Experiment (an SDIO/NRL satellite launched 8 x- ^1 C- I- i3 Z% GFebruary 1990 and turned off July 1993). 3 u5 c/ X+ G! Q" ], | w, VLACM Land Attack Cruise Missile. LADAR Laser Detection and Ranging. - t5 x) _* D$ y1 }Laddering Down A hypothetical technique for overcoming a terminal phase missile defense. Successive salvos of salvage-fused RVs attack. The detonations of one salvo / z2 k6 ?* v5 Y, adisable local ABM abilities so that following salvos are able to approach the target more closely before being, in turn, intercepted. Eventually, by repeating * _: J& o! \ s0 `, l: E, wthe process, the target is reached and destroyed. ) t( W; o8 n/ _# VLADL Lightweight Air Defense Launcher (USA TBMD term). LADS Low Altitude Demonstration System. % x0 o' S% P' hLAFB Langley AFB, VA. 0 w t: ^7 S; \, M5 R/ F& I8 _LAMP Large Advanced Mirror Program. , x. o# O3 X# R/ }6 u. r8 aLAN Local Area Network. ( N3 B# G' X. s# c% LLandsat Land Satellite (NASA program’s satellite). 5 b# G m$ w# ^5 x3 uLANL Los Alamos National Laboratory, NM. LANTRINS Low Altitude Navigation and Targeting Infrared Night System. LAO Limited Attack Option. z5 n+ |& [! V, c% p7 ^6 {' B8 o1 \LAPL Lead Allowance Parts List (Navy term). . z. [# e! L( b* @4 @LARC Langley Research Center, Hampton, VA. : B3 L, v8 N- y, PMDA GLOSSARY, VER. 4.0 L . e" H4 p! ]3 v+ c# M _: o* c162 - R% g' [2 p1 `3 v( e% nLarge Optics The technology of constructing and employing mirrors over 1 m aperture to direct 6 R4 C% J8 y0 b8 u/ |' C1 Cand control high power beam weapons/systems with large coverage, or to provide high resolution or high sensitivity for detection and/or imaging. LASA Large Aperture Seismic Array. Lasant A material that can be stimulated to produce laser light. Many materials can be used as lasants; these can be in solid, liquid, or gaseous form (consisting of 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 5 w( u) l/ ^. y" f8 g: |0 a( Q0 z7 Bdioxide, carbon monoxide, deuterium fluoride, hydrogen fluoride, iodine, xenon ! T; w6 L, t, B9 ychloride, krypton fluoride, and selenium, to mention but a few. + Q; C' ~- B. F6 zLASE LIDAR Acquisition and Sizing Experiment. # u5 |& L: K. O5 g) |4 ULaser An active electron device that converts input power into a very narrow, intense $ ?( A4 t2 e) Y) bbeam 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 potential for causing damage to the eye. Laser Designator A device that emits a beam of laser energy to mark a specific place or object. : q" u4 |6 H& H2 OLaser Detection and Ranging $ G$ l# g) ]) s(LADAR) , W; p3 m7 M4 G4 H* C' l/ YA 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 beam providing information on the distance and velocity of the target. Laser Guided & x- `$ O4 j4 L) [& m% {1 c/ RWeapon + I! i" Q. W' V/ qA 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 - a4 d2 Q# m( G Qthe point from which the laser energy is being reflected. Laser Imaging Radar A technology whereby a laser beam can be used in a way similar to the use of a radar beam to produce a high-quality image of an object. 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 ) C$ r+ K7 v6 o+ T" e& P% B% Dfrom a laser designated target and defines the direction of the target relative to & z$ V- h, U& C3 f0 Ethe receiver. See also laser guided weapon. $ S. x- x# k$ `8 \8 `' zLaser Target " g- P9 o! O# z2 j" }( M8 _; ZDesignating System A system that is used to direct (aim or point) laser energy at a target. The 5 i* o1 H- m* M' Wsystem consists of the laser designator or laser target marker with its display and # I( G% x: V1 u' ]& e; b- a* Hcontrol components necessary to acquire the target and direct the beam of the 4 P q. r o6 D( X- l8 O# z! vlaser energy thereon. 3 u! J" `" l/ i% fLaser Tracker A device that locks on to the reflected energy from a laser marked/designated 8 ^( Q% M0 D$ t3 jand defines the direction of the target relative to itself. Laser Weapons Devices, such as photon generators, which produce a narrow beam of coherent C3 y" P- L, s( [* Jradiated 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 # n* G: C6 Z) }( ]163 Launch Azimuth Missile launch location measured in degrees clockwise from the local northpointing longitude line at the launch site. (USSPACECOM) $ O# \$ v$ c: q7 \0 }. ~" h8 L5 `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 * R' S2 I$ s7 c' R# l3 g) K; i4 s' ^of the booster type. (USSPACECOM) * |5 d M: B; B/ i' hLaunch Point & x9 _; }+ ^) J: vDetermination With computer methods, uses missile track observation to estimate the point on - u* {( @6 O$ fthe earth’s surface from which the missile was launched, expressed in terms of circular error probable. 5 z% v% B- ]* {" X) `; x& ` jLaunch Under ) k3 ^7 N+ U* ?8 xAttack (LUA) Execution by National Command Authorities of Single Integrated Operational Plan forces subsequent to tactical warning of strategic nuclear attack against the / g' }3 w! J& G. a0 _United States and prior to first impact. Launch / g& _* F( I! R8 q* R4 b* SVerification , g" e/ q# P; H: b0 {- y% u. KConfirmation of a detection of a booster launch by receiving a report from a k" J& k1 w. ^ l+ l$ m6 l/ @sensor separate and independent of the sensor that initially detected a specific : V( }) Y7 ^ A2 i% {booster launch. 3 r/ N: |+ n' B. W# w3 D& A" \$ bLayered 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 (e.g., boost phase) of defense with remaining targets passed on to succeeding 0 f% ^/ V+ e/ a0 ?# Rlayers (e.g., midcourse, terminal). 3 o5 K5 _/ [0 G) rlb Pound. LBL Lawrence Berkeley Laboratory, Berkeley, CA. . i1 h+ o6 W$ ~' q1 N. KLBM Localized Battle Management/Manager(s). % b! c1 R: R" X' @+ l, y+ x& ]LBTS Land Based Test Site. LCC (1) See Life-Cycle Cost. (2) Launch Control Center. # V0 Y0 ?9 }) z* p" Q, d+ i+ C8 c% XLCCE (1) Life-Cycle Cost. (2) Launch Control Center. (3) Land Component ' F7 p, _$ }" Z( nCommander (JCS term). 9 s% t, r- K9 o% W5 H2 E4 ULCCS Life-Cycle Contractor Support. LCF Launch Control Facility. LCM (1) Life Cycle Management. (2) Lightweight Communications Module (USAF TelComms/Computer term). LCN Logistics Control Number (ILS term). ! _& u* q3 C% V# q2 h M4 }LCOM Logistics Composite Model. 0 y, t) F! d4 M2 ?4 F; c9 JLCN Logistics Control Number (ILS term). 0 w0 r: \5 c/ CLCS Laser Crosslink System. LDC Less Developed Country. LDS (1) Layered Defense System. (2) Lexington Discrimination System. (3) Limited X ]# z0 X) ^" e/ ~: ]) C/ a, @Defense System. . H" B1 p! \. z1 V) yMDA GLOSSARY, VER. 4.0 L / [3 B4 K1 @9 W9 A {164 & L' X3 I$ f" \LE Lethality Enhancer (PAC-3). Lead Component/ 7 K, Z3 A5 z: R: |Service 7 f. ~, R3 D6 U2 @0 ^; iThe DoD Component designated by SECDEF to be responsible for management / {7 ?8 A* o* b- _of a system acquisition involving two or more DoD Components in a joint program. 5 `% o+ `: G2 E8 W4 oLEAF Law Enforcement Access Field. Leakage The allowable threat objects passing through a BMD system expressed as a 7 Z8 c: F: `4 o2 c. J: Ppercentage of the threat. To ensure overall system performance, permitted 3 B2 i7 S k' O, `) Uleakage is “budgeted” among individual BMD phases and functions. Leakage (Max) The maximum allowable threat objects passing through a BMD system expressed as a percentage of the design-to threat. To ensure overall system performance, permitted leakage is “budgeted” among individual BMD phases and functions. LEAP Lightweight Exoatmospheric Projectile. LEASAT Leased Satellite. Least Privilege This principle requires that each subject in a system be granted the most restrictive set of privileges (or lowest clearance) needed for the performance of " f( R. f* O4 w1 Yauthorized tasks. The application of this privilege limits the damage that can result from accident, error, or unauthorized use. LED (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). LEI Low Endoatmospheric Interceptor. * a, T& M0 D2 W$ {3 m TLEIP Link Eleven Improvement Program (USN term). LEL Low Energy Laser. LELWS Low Energy Laser Weapon System. LEM Logistics Element Manager (ILS term). " m) _$ R. B8 @* VLEO Low Earth Orbit. E+ J8 ^' b6 C( \8 O! TLETS LWIR Environment and Threat Simulation. - f& m1 C1 ?/ a2 GLevel of Effort (LOE) 9 W9 f2 t' Z$ z, cEffort of a general or supportive nature that does not produce definite end / I) S6 K6 v& Z- n: d3 c% dproducts or results, e.g. contract man-hours. Leverage (1) The advantage gained by boost-phase intercept, when a single booster 2 J G! B g4 X( p5 M/ ^kill may eliminate many RVs and decoys before they are deployed. This - G: `9 w: l* ]could provide a favorable cost-exchange ratio for the defense and would reduce stress on later tiers of the SDS. & @$ R% g1 Z# B, P1 d: {' q( e(2) In general, the power to act or influence to attain goals. LF (1) Landing Force. (2) Low Frequency. 4 N4 z1 } I L# T% T1 N+ R! D) Y6 JMDA GLOSSARY, VER. 4.0 L ( G! w# Z4 D5 m5 ^5 T/ D165 * J3 V2 c& R" G6 P- j6 dLFIE Live Flight Integration Exercise. # A, P+ Y% E# |9 T6 R/ w% ILFOV Limited Field of View. % E9 P' k( k1 Y# S" T! ]LFS Loral Federal System, Gaithersburg, MD. LFT&E Live Fire Test and Evaluation. - A) n/ N8 m! e$ JLGB Laser Guided Bomb. & {, V! H4 [% TLGM (1) Laser Guided Missile. (2) Loop Group Multiplexer. LGSM Light Ground Station Module (USA CECOM term). LHO Amphibious Assault Ship. Li Lithium. LIC Low Intensity Conflict. LIDAR Light Detection and Ranging. $ L8 C2 V _' LLife 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 7 k# |" i( U {. Fexcess to all known materiel requirements. 0 g: B( R! @ @) K& @(2) (Software). All the states a software or software related product passes through from its inception until it is no longer useful. Life-Cycle Cost + H/ n9 d ]) a$ a2 a: r(LCC) / D2 V# A; m( ~/ h4 tThe total cost to the Government of acquisition and ownership of that system : I* H2 j' |1 n' l- P4 s4 @over its useful life. It includes the cost of development, acquisition, support and, 8 I- }3 \/ a! ewhere applicable, disposal. * i8 n9 `7 c4 p: R* RLife-Cycle 9 p5 w/ g7 r$ t( H8 H0 CManagement 4 ]: y2 u+ [( t/ `4 ^Process for administering an automated information system or hardware support 7 J0 f% W7 J: A% V4 D1 I) {system over its whole life, with emphasis on strengthening early decisions which shape costs and utility. Life-Cycle Model A framework containing the processes, activities, and tasks involved in the 9 j. g' ]2 \: M, b) e( Y: @* tdevelopment, operation, and support of the system, spanning the life of the system from the definition of its requirements to the termination of its use. Life Cycle of a - N! j( p* A5 X9 dWeapon System All phases of the system's life including research, development, test and evaluation, production, deployment (inventory), operations and support, and disposal. 3 d6 U9 ~# }. W% HLife 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 and Ranging # d, @' z- |! |* A. C(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 6 J5 y6 M6 q" N7 g# E2 r4 g(LREP) Decoys that, by virtue of shape, closely approximate an RV’s signature with little off-load penalty. " @; x2 e) u/ W }% s0 Y4 h/ zLIMIDIS Limited Distribution. 3 Q* J% T) J6 |- B' lMDA GLOSSARY, VER. 4.0 L 166 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. - t" O4 I, y3 DLimited Defense ' d3 ?- d7 f @2 Q& lSystem (LDS) $ i+ C$ x# e) V0 J! QThe 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 , l, b; A! K5 ]5 A' h6 ]& e+ GUnited States against limited ballistic missile threats, including accidental or 6 N |7 V& J( v4 X: u4 B; D* T; n: Bunauthorized launches or Third World attacks, but below a threshold that would " k; L. I' c$ `1 A$ @1 h" p' M* o+ ]bring into question strategic stability. " S! K5 N7 w: x+ U: `1 t$ ]Limited Operational 9 G: r# F' |2 ~$ t, FCapability (LOC) A point in time when the first set of sensors and weapons can be employed to provide a limited protection system. Limited Production The 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, 3 o2 K& \; o4 E1 l2 u# W. o: e k: I4 umanufacturing process final proofing, and product engineering and to verify a # g; D# l' C+ Z1 v efactories 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 Ban Treaty * U6 B0 Y* U; SThe bilateral Treaty signed and ratified by the United States and the (former) " q+ z' N& }, M: c# mU.S.S.R. in 1963, which prohibits nuclear tests in all locations except underground, and prohibits nuclear explosions underground if they cause radioactive debris to be present outside the territorial limits of the state under whose jurisdiction or control the test would be conducted. / [- o3 _0 l, H$ Z% YLIN Line Item Number. Linac Linear Accelerator. , S! a$ X; h- z2 kLine Item + g2 |* n0 r7 `! F& q, _9 a(Budget) A specific program end item with its own identity (e.g., B-1B Bomber). Line of Sight : ]- R$ q: k. S0 E(LOS) The line from sensor to target necessary for the commencement of the detection, 0 X& h- S- Z: pacquisition, track, and identification of a target. Line Replaceable Unit (LRU) An essential support item removed and replaced at field level to restore end item 4 V. X9 A+ {9 ]to an operationally ready condition. (Also called Weapon Replacement Assembly and Module Replaceable Unit). Link-16 TADIL-J. Link Quality Evaluation This testing of links to create bit error estimates and monitors natural or induced ) j2 h* o' [1 i* K; q# Alink interference. LIP Lethality Improvement Plan. 0 \) k m/ B" i* nLiquid Fuel $ k4 x) ]7 ^& D7 ABooster (LFB) Target booster being developed to mate with current reentry vehicles and " Y/ ~, m. D+ \7 ?emulate the short/medium range threat. 6 Q+ ~2 q( p3 J( }LIS Laser Isotope Separation. LITINT Literature Intelligence. 7 }! W: o2 d* I+ h4 B, I* [MDA GLOSSARY, VER. 4.0 L 167 * M& d3 y( v7 }Live Fire Test 5 {; l& b5 j9 n) X8 _) gAnd Evaluation (LFT&E) Survivability testing and lethality testing required before full-scale production. $ Y3 @! L+ z" T3 \4 a* ~& GMust 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 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. LIWA Land Information Warfare Activity. LJ Life Jacket (BE term). / R/ H6 H- Q; e- ?% `% dLL (1) Lincoln Laboratory, Lexington, MA. (2) Legislative Liaison. LLM Long Lead Material. LLNL Lawrence Livermore National Laboratory, Livermore, CA. a# y9 U0 W) ?# n, x: K; hLLTIL Long-Lead-Time Items List (ILS term). LLUM Low background LWIR Uniform Mercury Cadmium Teloride (HgCdTe). , {% `+ ~9 u5 r' T5 p0 C- YLM (1) Lockheed Martin, a defense industry contractor. % ]& b4 O' L, _ `8 {) ^) c! t(2) Logistics Manager (ILS term).

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LM/GES Lockheed Martin/Government Electronic Systems. LMA Lockheed Martin Astronautics, a defense industry contractor. LMANS Lockheed Martin Aeronautic and Naval Systems. LMC Late Midcourse. & F& s) w ]2 ?! sLMFBR Liquid-Metal Fast Breeder Reactor. " n7 r/ u D+ }+ {LMIS Logistics Management Information System. LNA Low Noise Amplifier. LNC Local Network Controller. LNE Low Noise Exciter (Electronics Engineering term). 6 V: h8 h9 {- M$ z! JLNO Liaison Officer. LO (1) Local Oscillator (Electronics Engineering term). (2) Low Observables (LODE-related term). # `. Q @) B+ uLOA Letter of Agreement. LOAD Low Altitude Defense. LOC (1) Lines of Communication. (2) Lines of Code. (3) Limited Operational Capability. : b# g0 J, y1 j( a0 t2 g4 H+ KMDA GLOSSARY, VER. 4.0 L 6 D$ [+ _+ ]4 n) w" d168 LOCAAS Low Cost Autonomous Attack System (USAF term). " ?: W7 {+ k+ eLocal Assessment of # i7 q& V* U* k- b1 H- jEngagement The assessment of an engagement by high-resolution fire control sensors. " t( `& E4 d$ l9 ]7 A8 x, x" oLocal 6 t! d% F4 E' t8 DEnvironment 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 + l6 R( V( F+ R% D5 {8 o# J, N" ZElement 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 % f4 w2 y, F% f0 Q' C, eautomatically tracking a target in one or more coordinates (e.g., range, bearing, ! G, n& S& n/ }4 ?elevation). LODE Laser Optics Demonstration Experiment. LODTM Large Optics Diamond Turning Machine. LOE (1) Level of Effort. (2) Letter of Evaluation (AF). : B7 y5 n; y- \, J6 QLOF Lifejacket Orbital Flight (BE term). Lofted Trajectory Trajectory with an apogee greater than the minimum-energy trajectory to the , b* v& H: G) P. G k, T" `1 asame range. LOG Logistics. LOG.WIPT Logistics Working-level IPT ( A, z/ ^5 ~* ]5 eLOGAM II Logistics Analysis Model II. LOGFAC Logistics Feasibility Analysis Capability. LOGFOR Logistics Force. Logistics The science of planning and carrying out the movement and maintenance of , ?3 w( p/ [% |forces. In its most comprehensive sense, it includes those aspects of military 4 K) s. z4 }0 B- t/ ioperations which deal with: (1) design and development, acquisition, storage, r" N* b8 q' R5 [7 [, Fmovement, distribution, maintenance, evacuation, and disposition of materials; (2) movement, evacuation, and hospitalization of personnel; (3) acquisition or - _; Q9 V7 P! v, B3 p4 g$ g# j8 Aconstruction, maintenance, operation, and disposition of facilities; and (4) acquisition or furnishing of services. 1 K; G$ Y8 _. @$ F. j, ?; `, ULogistics Support The supply and maintenance of materiel essential to proper operation of a $ [" k9 w% P2 t2 dsystem in the force. Logistics % i1 J$ j) a0 ~ O5 fSupportability The degree to which planned logistics support (including test, measurement, and 8 @4 Y# ~/ r+ ~/ y8 h: tdiagnostic equipment; spares and repair parts; technical data; support facilities; & g+ f& |0 }; l3 T& a* rtransportation requirements; training; manpower; and software support) allow " H! {+ v0 _: N; n( lmeeting system availability and wartime usage requirements. MDA GLOSSARY, VER. 4.0 L 169 Logistics / t t# O0 r8 L" [% i" H& [& ASupport Analysis 9 }3 \' b& Z, G: B8 P6 \( r8 Z(LSA) * v0 K' c+ b1 ~The selective application of scientific and engineering efforts undertaken during # v2 [- d, f( Q! Jthe acquisition process, as part of the systems engineering process, to assist in: # ]) i* ?$ [. O9 Zcausing support considerations to influence design; defining support requirements that are related optimally to design and to each other; acquiring 5 y: s6 L. L1 ^9 H! N; k: _the required support; and providing the required support during the operational phase at minimum cost. 8 ]4 ?# t. X7 _: H k9 T( OLogistics Support Analysis Record 1 ]3 P. L r( i+ I- D b(LSAR) 9 J& l9 a4 x8 S$ P2 E* s OA formal tool under MIL-STD 1388-2A that uses records/forms to document operations and maintenance requirements, RAM, task analyses, technical data, 0 @! j" _8 }. V, w) d& osupport/test equipment, facilities, skill evaluation, supply support, ATE and TPS, / D; j9 U- v7 I4 n8 Hand transportability. LSAR is the basis for training, personnel, supply provisioning and allowances construction, support equipment acquisition, 8 E9 Y; d; X- v0 k9 n- kfacilities construction and preparation, and for maintenance. LOGPLAN Logistics Plan. 2 w: n9 q, b A1 ?LOGSIM Logistics Simulation Model. 3 \1 y. R' A: a$ J1 Y+ FLOI (1) Letter of Instruction. (2) Letter of Intent. LOMEZ Low Altitude Missile Engagement Zone. Long Lead Items / u# Q: y2 R9 E( TLong Range Air ; K- z5 ?) e: O0 BLaunched Target (LRALT) Those components of a system for which the times to design and fabricate are the longest, and, therefore, to which an early commitment of funds may be 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 7 @' B3 y5 H; g5 U0 {encompassing infrared wavelengths of 6 to 30 microns. LOR Level of Repair Analysis (ILS term). % g1 \" H/ g7 J j) v' GLORA Level of Repair Analysis (ILS term). LOS (1) Line of Sight. (2) Large Optical Segment. LOTS Logistics Over-The-Shore. * u/ ?% N0 |: FLOW Launch on Warning.

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Low Altitude 7 u( H. `' n) t; l, dDemonstration System (LADS) Part of the SBIRS Low Program Definition and Risk Reduction (PDRR) program ( a4 [, u/ {9 @7 `phase. The LADS will consist of a flight experiment and extensive ground 8 z, @0 ]* Y- J2 |* E; Wdemonstrations by Boeing North American. The LADS flight experiment will be ; K; o% ]# r. u$ A4 E- tlaunched in late FY99 to demonstrate the sensor performance of a SBIRS Low concept and collect phenomenology data. & g! w$ R4 J9 g$ l7 rLow 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 minutes up to 10 minutes over a tracking station), short life spans, and are most subject to orbital perturbations due to atmospheric drag and earth gravitational anomalies. Low Endoatmosphere . }) h1 A; a: E1 [2 g, I/ X' `That portion of the earth's atmosphere, generally below 40 km altitude. ; Y8 l' L2 g4 D% }MDA GLOSSARY, VER. 4.0 L , C h- M& @& v( W/ }- O170 ( S$ n0 b' m8 e* a8 u8 |- s2 ?Low-Rate Initial 6 k. L" z6 H3 g) zProduction (LRIP) 7 [# h- m. Q1 T# g) qThe 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 0 i0 k* b& v& R' b( Qorderly increase in the production rate sufficient to lead to full-rate production upon successful completion of operational testing. - z1 D6 O$ x. A6 ?LOWKATRER Low Weight Kinetic Energy Active Tracker. ! K1 ?' Z8 s" ~6 H t1 _* l1 NLOWTRAN Atmospheric and Interstellar Background Signature Model. LPAR Large Phased Array Radar. LPD Low Probability of Detection. LPE (1) Liquid Phase Epitaxy. (2) Launch Point Estimate. ' q& O" O8 A3 y& wLPI Low Probability of Intercept. LPS Limited Protection System. LR Long Range. LRA (1) Line-Replaceable Assembly. (2) Launch and Recovery Element. 2 s! E/ Z' e1 f( WLRB Liquid Rocket Booster. LRC Lewis Research Center, Cleveland, OH. LRE (1) Latest Revise Estimate. (2) Launch and Recovery Element. 7 A+ h- C$ s8 M8 R( E; f: vLREP Light Replicas. 8 i! q$ Z5 C6 o* h HLRF Laser Range Finder. LRINF Longer Range Intermediate Nuclear Forces. LRIP See Low-Rate Initial Production. ; R- r5 |; `- @6 s) iLRIP-OT Low Rate Initial Production – Operational Testing. 4 m" h( H7 U( ^% `' o) xLRTBM Long Range TBM. LRTNF Long-range Theater Nuclear Force. LRU (1) Line Replaceable Units. (2) Line Replacement Units. LS Launching Stations (PATRIOT). LSA Logistics Support Analysis. - W3 }4 B$ ^3 ^, F1 c$ ?0 vLSAP Logistics Support Analysis Program. 5 u' y* j2 w: t8 JLSAR Logistics Support Analysis Record. % P% V& `, J# D {0 V f1 N9 ?0 ?LSART LSA Review Team (ILS term). LSAT Laser Satellite. MDA GLOSSARY, VER. 4.0 L 171 LSAWG LSA Working Group. / b3 v, g8 n# w8 hLSE Lifetime Support Engineering (ILS term). LSEA Lifetime Support Engineering Activity (ILS term). LSI Large Scale Integration (circuits). LSRS Loral Space and Range Systems, Sunnyvale, CA. LST (1) Laser Spot Tracker. (2) Landing Ship, Tank. + _! s/ R2 K4 p: I1 [1 W' \LSTS Launcher Station Test Site. LTA Lead Time Analysis. LTBT Limited Test Ban Treaty. - U2 M# h6 ?7 x& r7 }LTD Laser Target Designator. 0 G* w% L! N: m2 k! [/ w7 ALTH Lethality and Target Hardening. LTS Low Temperature Superconductor $ Z( O& ?( ]6 W$ j( @LTV Launch Test Vehicle. LU Launch and Update. $ I; ^9 }' X7 F# `( e: k- x1 jLUA Launch Under Attack. : ]; o9 S* K' |6 r2 Y8 f. W* d! TLUP Limited U.S. Protection. " b' }, w- ^7 H; `: D( vLUT Limited User Test. & m" j1 k) ~( X" T6 s( r6 ?LUT/OA Limited User Test/Operational Assessment. 6 ^$ r8 E7 J) n- m. F* V/ f$ SLVS Loral Vought Systems, a defense industry contractor. " w1 ~7 U" X0 ULVT Low Volume Terminal (USN/NATO/Telecomm term). ( D- I/ o) @" ]' @" YLW Laser Weapons. . X% ^. W% A# L/ @( {7 V- ]. s& ELWAN Local Wide Area Net. LWIR See Long Wavelength Infrared. 0 u, s( A7 E$ N2 `0 v/ YLWIR FPA (PET) Long Wavelength Infrared Focal Plane Array (Pilot-line Experiment Technology). " W- P7 F5 K) ?) FLYTBT Low-Yield Threshold Test Ban Treaty. ) {4 |( z4 ?0 m0 V3 yLZ Landing Zone.

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MDA GLOSSARY, VER. 4.0 M 173 m (1) Meter. (2) Minute. M (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. M/P Manpower/Personnel. MAA Mission Area Analysis. 0 j, }6 k& _$ p1 K; K& ~) ~9 V. {) IMAAG Military Assistance Advisory Group. % t4 R; j/ f* K8 FMAB Missile Assembly Building. MAC (1) OBSOLETE. Military Airlift Command. See AMC. (2) Maintenance Allocation Chart. MACCK Multi-Application Command and Control Kit (GD term for IVIS follow-on). & k8 o& m! N7 X4 s8 d% _MACCS Marine Corps Air Command and Control System. $ F+ ?4 B. b% S. ?0 s$ |MACOM Major Army Command. MAD (1) Mission Area Deficiency. (2) Mutually Assured Destruction. MADCAP Mosaic Array Data Compression and Analysis Program. MADS Modified Air Defense System. : m, ~) i3 i% BMAE Medium Altitude Endurance. MAGTF Marine Air-Ground Task Force. $ m2 L2 g" m9 k3 m& \Main Beam The primary directional EMR emitted from radar transmitters. " @7 E; `# W$ p) AMaintainer An individual responsible for retaining the major defense system in or restoring it to a specified condition. Maintenance activities include inspection, testing, ) X' a* t3 J6 |7 t0 jservicing, classification as to serviceability, repair, rebuilding, and reclamation. / O7 N2 ~4 J1 `! jMaintenance + i* Z7 G9 E# Q$ hConcept/Plan A description of maintenance considerations and constraints for system/equipment under development. A preliminary maintenance concept is ; n( f- Q# h2 ^) X5 sdeveloped and submitted as part of the preliminary system operational concept for each alternative solution candidate by the operating command with the 1 F( r: |3 ` I. t# H0 g- Sassistance of the implementing and supporting commands. A major driver in . G6 b+ ~: `: e8 Ddesign of the system/equipment and support planned for it. 4 h; l- \! I& `8 K' bMDA GLOSSARY, VER. 4.0 M 5 d/ J1 d0 a5 n M174 0 s* w5 R8 z$ [. D) i7 FMaintenance " o: E4 Q% [/ [* kOperations ) p" b, \2 Z% M) u Q3 \The corrective and preventive maintenance operations that do not require a deployment decision; it includes correction and subsequent validation testing 0 A% F' J. L0 fand the update of relevant status configuration, maintenance, and inventory : K3 j/ r0 ^7 l( D: |/ ?databases. $ p# Y0 m4 ]1 x; f" Z( yMaintenance Planning The 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). MAISRC Major Automated Information System Review Council : a5 N- E) U v& F, yMAJCOM Major Command (USAF). 3 O. S+ H6 b! Y& i6 n# DMajor Automated Information System Review Council (MAISRC) 3 e* D a2 H& v6 ?7 s' I p0 R( CThe Senior DoD information management acquisition review board chaired by the Assistant Secretary of Defense for Command, Control, Communication, and X8 Q) n. p+ c) M( T' h$ nIntelligence. See DoD Directive 8120.2.

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Major Defense / L4 l7 y/ t6 d* d8 EAcquisition Program An acquisition program that is not a highly sensitive classified program (as l2 ~; j3 O. _7 L5 b" w# ^determined by the Secretary of Defense) and that is: 1 {& P2 ~5 g/ |! E0 S" \% L" U g1. 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: 9 s- G5 ?* |9 Z5 wa) 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 $1.8 billion in fiscal year 1990 constant dollars). Major 8 v' Y j) T! Z$ ]( TModification ! x* `( j" K9 UA modification that in and of itself meets the criteria of acquisition category I or II 4 m/ g& V S6 A3 A/ O$ \: Wor is designated as such by the milestone decision authority. Major modifications require a Milestone IV decision unless the decision to modify results from one of the 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 required to fulfill a mission need, including hardware, equipment, software, or any combination thereof, but excluding construction or other improvements to real # m2 S4 y0 B) U4 O5 t) B) B- @6 Aproperty. A system shall be considered a major system if it is estimated by the o* C+ m' w# @6 C6 S0 ^1 XUnder Secretary of Defense for Acquisition and Technology to require: 1. An eventual total expenditure for research, development, test, and evaluation of more than $75,000,000 in fiscal year 1980 constant dollars & q/ d) h1 N+ K/ e7 T& C7 r(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). ( f0 O# E5 |% j1 ]* E) J! V2 EMAM Maintenance Assist Modules. MAMDT Mean Active Maintenance Downtime (ILS term). $ C3 p* z% p0 ^& hMDA GLOSSARY, VER. 4.0 M 175 Mandatory & ^7 `( c# V# ^8 XAccess Control / }# f4 r* K; g. ]A means of restricting access to objects based on the sensitivity (as represented + |/ A/ P4 a9 e+ J( hby a label) of the information contained in the objects and the formal authorization of subjects to access information of such sensitivity. & `1 i/ d# X9 H `& r/ ZManeuverable Reentry Vehicle " |# h r3 c6 v) E( ?(MARV) A reentry vehicle capable of performing preplanned flight maneuvers during the reentry phase. The reentry vehicles deploy fins or other aerodynamic surfaces + ?$ D+ L4 I( r, O& h0 Rwhen they enter the atmosphere, allowing them to turn and dodge rather than & b# X+ Y9 [7 @" [& p+ Ofall ballistically. They have no ability to maneuver in space. MANPER Manpower and Personnel ILS term). Manpower * F7 V2 Z9 V/ ZAuthorizations The billets in the manpower requirements structure that are planned to be filled. 7 c8 q, _0 Z7 C0 x' x4 J7 K$ qManpower Estimate Report ) q8 r" f R0 R1 S(MER) 9 y8 |2 w& B( f( hAn estimate of the number of personnel who will operate, maintain, support, and train for the acquisition upon full operational deployment. The Services prepared the estimates, and the SECDEF submits them to Congress 30 days prior to approval for EMD or production. Manpower, Personnel, * S& J2 ^. E; ^# e5 _1 O1 ~0 h9 z# LTraining, and Safety (MPTS) 5 i7 w& I9 r; F e }: wThe human dimension of the complete defense weapon system. The term MPTS also encompasses the concepts and disciplines of human factors 9 ` I3 h! Q5 X$ R1 cengineering and health hazard prevention. Manpower, Personnel, - c, G- z) O2 e/ vTraining, and ( g- Y2 y& U7 I. I$ `) O1 DSafety (MPTS) Profiles 2 o X% B0 Q2 Y% P2 Z$ |A description of human dimensions and constraints involving a major system 4 _1 L! w# c, v( sthroughout the system life cycle. This includes, but is not limited to, descriptions and categorizations of occupations, aptitudes, individual skills and demographics, training system characteristics and components, potential system hazards, and other issues affecting the performance and welfare of operators, maintainers, and personnel that support existing, modified or new systems. MANPRINT Manpower and Personnel Integration (US Army). MANTECH Manufacturing Technology. # X3 ^$ R1 `* Y) m9 SManufacturing (or ( ^- X& F3 Q. A6 A; e; \Production) - @% H) G+ T" W( F* V1 |- rEngineering Pre-production planning and operation analysis applied to specific product - r1 g/ u! B! |- c6 w! a& P/ M8 V. gdesigns. The functions of planning, specifying, and coordinating the application of required factory resources including: performing analyses of production operations, processes, and systems; applying new manufacturing methods, 3 h o" K, z8 W0 f- gtooling, and equipment; controlling the introduction of engineering changes, and " k, b) c: |( Z& R- @# w, f1 ]: lemploying cost control and quality techniques from the factory viewpoint. ' K9 f$ k! I7 k, o. iManufacturing Operations, & i: C4 d, v' R9 X2 N7 i- t9 P- {Development, 1 g3 b" _2 y# O! d0 z! ?and Integration . a3 p' p* K8 {; G kLaboratory & g- C& f0 ~/ z) f9 @(MODIL) $ Z) M3 w1 m% u- [4 Z- H0 Q' |+ _An SDS-peculiar integration mechanism to link product technology development concurrently with manufacturing process and control development for a costreducing effective SDS development. Manufacturing % S# K8 I+ s" T Y9 N* WTechnology 8 }' c' I4 r" w* ?(MANTECH) Manufacturing technology refers to any action which has as its objective the timely establishment or improvement of the manufacturing processes, / B% O8 b; s! V/ L( o% [: ^techniques, or equipment required to support current and projected programs, g" \" i, N& T8 [4 t r' @and the assurance of the ability to produce, reduce lead time, ensure economic availability of end items, reduce costs, increase efficiency, improve reliability, or to enhance safety and anti-pollution measures. MANTECH, per se, is the specific DoD program in this area. MDA GLOSSARY, VER. 4.0 M 9 ^ ^$ E' n( u5 @: t/ r3 V176 ; |+ t5 j- L3 N! ^* G$ r' g4 DMAOC Modular Air Operations Center (JFACC term). 7 `+ T5 [, T4 `/ o. \: tMAOPR Minimum Acceptable Operational Performance Requirements. MAP Minimum Acquisition Program. / C; k& a, [. V$ U: ^MAR Monthly Assessment Report (BMDO/POC term). ( [9 r, F, [# EMARCO Marine Corps.

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Marine Air Command and Control System $ i1 m( k x8 h g# G, n9 V VA US Marine Corps tactical air command and control system that provides the / |% ~7 J% C |tactical air commander with the means to command, coordinate, and control all air operations within an assigned sector and to coordinate air operations with 0 [0 D( f; n4 t9 u! I. iother Services. It is composed of command and control agencies with communications-electronics equipment that incorporates a capability from manual through semiautomatic control. Mark/Markup Line by line review and approval/disapproval/modification of the defense budget by congressional committees. MARS Multi-warfare Assessment and Research System. MARSYSCOM US Marine Corps Systems Command, Quantico, VA MARV Maneuverable Reentry Vehicle. 9 `8 ~% H, V! C) n b. |0 K, cMARVIS Mid-Apogee Reentry Vehicle Intercept System. ) r" F8 {, i9 E# ]6 E( c$ J. ]3 cMAS Mutual Assured Survival. ; I; K% H: e) d4 R; m2 f2 Q# TMASINT Measurement and Signature Intelligence. MASPAR Massive Parallel Processors (TMD-GBR). Mass Raid Many Red ballistic missiles launched toward CONUS from several launch areas. A mass ASAT raid consists of several ASATs attacking Blue satellites. " v* E$ u9 W$ I6 m6 w) NMAST Measurement and Simulation Technology-formerly Synthetic Scene Generation Model (SSGM). Matching Ballistic Reentry Vehicle (MBRV) / U* J! H0 K1 c6 QFour reentry vehicle designs (MBRV 1-4) developed to serve as threat representative theater targets. 0 ?& E5 ]1 k0 Z% OMatching Target Reentry Vehicle 6 V% X B1 z( u S3 M(MTRV) Threat representative reentry vehicle developed for GMD Program by Sandia Labs. Planned for use on IFT 9-14. Material Fielding & i7 _8 f, \* iPlan ; j' |0 `1 X* ]3 |1 a3 QPlan to ensure smooth transition of system from developer to user. " m- r! j% q6 \4 u! x" p; XMaterials : P2 m8 S/ }+ C- ?/ S% hScience % I* I' b, R/ z: H5 D% x6 oThe science of developing/altering and applying materials to obtain a resultant molecular structure with desirable physical properties and performance characteristics. (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. MDA GLOSSARY, VER. 4.0 M 177 Matra BAE Dynamics 7 Z& S! e. N1 I3 vEuropean 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. MATTR Mid And Terminal Tiers Review. MAX Maximum. Maximum 4 k5 G; I; {2 L6 CAttrition 0 Q- o! Q: z6 ~. a+ R( ?) I6 I/ N* ?6 HMaximum attrition is employed in a target-rich environment to destroy the ! a9 k9 V! Q2 s+ z( pmaximum number of RVs, regardless of the type, by using all available or " C9 f- R2 T9 V7 G. F) r' Ballocated interceptors. This option may not satisfactorily defend specific or required assets. : J! Q) q1 R6 a7 I% S0 fMB Megabyte. MBA Multi-Beam Antenna. MBE Molecular Beam Epitaxy. MBFR Mutual and Balanced Force Reduction. % W7 x3 P" [" w; M5 G4 ^+ ~Mbps Megabits per second. : O% {6 b7 M, l# @* Q" H; lMBRV Maneuvering Ballistic Reentry Vehicle. 0 ?& S" V4 [) p6 b1 Z: n% QMC (1) Mission Control. (2) See Midcourse phase. (3) Mission Capable (ILS 1 t; @! |- F- G8 f Zterm). (4) Military Committee. # {8 @2 `: l0 h' I5 U7 t; nMCA Micro Channel Architecture (TelComm/Computer term). - {0 Z- W; i" b' y3 C7 a4 A8 Z/ T) A2 aMCAS 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. $ `( [* K: z: nMCE Mission Control Element. MCG Midcourse Guidance. 2 G/ h' u! x4 b" SMCI Midcourse Interceptor. % O% i' q" S; a; N/ Q1 L/ x* J2 ]MCLOR Marine Corps LORA Model (USMC ILS term). $ m' l$ M% v+ l$ D# r" oMCM Multi-Chip Module. MDA GLOSSARY, VER. 4.0 M : q. T2 u7 D2 M' x4 R) K; M178 ( B/ }, R$ K Q) w4 {: I& vMCOTEA Marine Corps Operational Test and Evaluation [Command]. MCP (1) Materiel Change Package (US Army term). 2 V. e: k: @; y! J! l6 ^(2) Military Construction Program. MCPDM Marine Corps Program Decision Making. MCRDAC Marine Corps Research, Development & Acquisition Command. MCS (1) Maneuver Control System. (2) Midcourse Sensor. M3 Q! b" j' y) s8 S) C( ^# PMCSS (1) Midcourse Surveillance System. (2) Military Communications Satellite System. 1 L' V! T; ?; _! S0 B/ ~! JMCT Mercury Cadmium Telluride (cf. HgCdTe). 4 v: [- N- n4 v9 P gMCTE Mission, Course of Action, Task, and Element Control Directives. 0 f5 K2 {9 k8 OMCTL Militarily Critical Technologies List. MCTR Missile Control Technology Regime. MCV Mission Capable Vehicle. ( z2 }: V3 [5 a: J* R# {; b, Q1 H; IMD Missile Defense. MDA (1) Missile Defense Agency. (2) Missile Defense Act. (3) Milestone Decision - O$ W; G. r: L/ ^% l- TAuthority. (4) McDonnell-Douglas Aerospace. MDAHWG Missile Defense Ad Hoc Working Group. MDAP Major Defense Acquisition Program. MDART Missile Defense Activities Review Team. 5 L, @6 _1 a' x( CMDBIC Missile Defense Barrel Integration Center. " J3 W5 u- M& iMDC Midcourse Data Center, Advanced Research Center, Huntsville, AL. MDCI Multi-Discipline Counterintelligence. $ O1 l# ^ g( C4 J* pMDDC Missile Defense Data Center, USASSDC, Huntsville, AL.

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MDP Manufacturing Data Package. MDR (1) Medium Data Rate (TelComms/Computer term). X( j( S) o, O(2) Milestone Decision Review. - v3 i l9 H7 d7 U7 H(3) Multi-national Defense Research. MDSC Missile Defense Scientific and Technical Information Center. c- j& e6 P& r% n& }1 x* KMDSTC Missile Defense and Space Technology Center. MDT Maintenance Down Time. MDTD Mean Downtime Documentation (ILS term). 5 @+ n5 @& W& }, U4 R- l; d/ lMDTOA Mean Downtime for Outside Assistance (ILS term). 3 u/ Q- ~% h" v h5 H- b/ [MDA GLOSSARY, VER. 4.0 M E$ \4 s. W2 n" f179 5 O+ R$ W# c: |7 M# rMDTOR Mean Downtime for Other Reasons (ILS term). # ?% b0 _6 a# \1 OMDTT Mean Downtime for Training (ILS term). - |5 [3 o9 B$ n5 \MDW Mass Destruction Weapons. ( j+ i) c- A; p, }4 g. l3 NME/VA Mission Essential/Vulnerable Area MEA Mission Effectiveness Analysis (JFACC term). 6 |7 q$ }. p- G0 P) t6 LMEADS See Medium Extended Air Defense System. Mean Time % a6 J6 W( c- d& J% T M. lBetween 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 S" T/ y& o$ O" ]* O% Omeasurement interval. The definition holds for time, rounds, miles, events, or ! L9 Z7 Q- D- f* E; q3 q0 X7 Kother measures of unit life. MTBF is a basic measure of reliability. Mean Time To 1 y$ t, x/ i4 F/ \( @8 rRepair (MTTR) . A7 j6 u3 x1 m+ ?, t% YThe total elapsed time for corrective maintenance divided by the total number of ; H$ I' q& f6 o4 c6 ^corrective maintenance actions during a given period of time. A basic measure : f9 {! W& |: X% [: R$ n8 {" {of maintainability. Mean Time to Restore System 3 V" ^ K5 L. s. a/ {8 b; I(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 ' S8 Z4 G( |8 atime. (Excludes time for off-system maintenance and repair of detached ' q$ x2 Q6 L, Z7 b: D5 ~components.) MEASAT Malaysia East Asia Satellite. Measure of Effectiveness (MOE) The quantitative expression (sometimes modified by subjective judgment) of the ) q+ @0 u) n9 I* m. f/ {2 r' e/ jsuccess of a system in achieving a specified objective. " `' t4 L" w6 I# LMEC Mission Essentially Code (ILS term). : c6 V# ^* N7 f E% h, c( Z3 x8 uMedium Earth Orbit (MEO) Space vehicles characterized by orbits between 400 and 10,000 nautical miles, ! z; S2 A& w( c4 o! f/ N4 U3 O, Nlonger duration revolution (2 to 12 hours), longer visibility envelopes (10 minutes % m+ y, r& x/ n+ S V, ?6 Q, Aup to approximately 1 hour), and generally longer lifetimes. This region contains the Van Allen radiation belts where electronic components need special # h/ f( _+ n( I, Jprotection. Medium ; S% F7 v5 j$ hExtended Air Defense System (MEADS) : m1 P7 G; E" {, @" xA lightweight, highly transportable, low-to-medium altitude air defense and ^1 h, K" ] u' E, z6 wtheater missile defense system designed to protect critical fixed and ) j* P; O! W3 |6 R3 |- D+ ]maneuverable corps assets. MEADS superseded the Corps SAM program in 1995. Medium Power & t2 m4 ^2 i7 i" n/ d1 nLasers # _5 c$ u* E# A) d1 ELasers that radiate power less than 1 MW, normally used to detect, identify, / {* a/ w1 Q9 f0 U+ R9 ktrack, and designate a target vehicle. . Y& o3 B9 w; C1 P; E; B, WMedium Range # E) _7 Q# K9 Z+ a' L1 k* Q1 }Ballistic Missile + U6 u% l+ k! C(MRBM) ( C3 Z5 u% |: `$ X$ zA ballistic missile with a range from about 600 to 1,500 nautical miles. 5 \ D8 W! @6 [+ V% w3 XMedium 2 O8 Z1 \& c& i% ZWavelength ! e$ {1 F- `$ p& Z9 v# _2 @1 KInfrared (MWIR) ; r2 H6 a2 q/ S W* R4 F5 @Thermal radiation emitted by a source in the electromagnetic spectrum encompassing infrared wavelengths of 3 to 6 microns. MDA GLOSSARY, VER. 4.0 M y" ~7 v' E' s- |3 S180 MEF Marine Expeditionary Force. MEILSR Minimum Essential ILS Requirements (NSA term). 8 z( o7 Z* ]2 O _ S9 mMEL (1) Maintenance Expenditure Limit. (2) Mobile Erector Launcher. . V4 l) G5 F4 A' qMEM (1) Mission Effectiveness Model. (2) Mission Equipment Modernization. Memorandum of Agreement (MOA) * t4 `1 ]% q) P: k3 ^' m(1) In contract administration, an agreement between a program manager and a Contract Administration Office, establishing the scope of 0 u" S2 b( b& D$ Y, l& P5 Sresponsibility of the Contract Administration Office with respect to the cost and schedule surveillance functions and objectives, and/or other contract administration functions on a specific contract or program. ( u( l* l# z" f: D# y2 |. B! a" @(2) Any written agreement in principle as to how a program will be administered. 0 u$ d0 G4 P9 w, z: W p" H' DMemorandum of Understanding ' B7 a, d& z; o# D" x( _7 }/ b(MOU) Official agreements concluded between the NATO countries' defense ministries * z* U3 Y+ s- y7 S+ \$ e/ q# Gbut ranking below government level international treaties. De facto, all partners generally recognize such agreements as binding even if no legal claim could be 6 V7 C% U/ ` J! v Hbased on the rights and obligations laid down in them. ( b+ N1 j9 t1 p3 A* g1 R3 M' UMEO Medium Earth Orbit. " u+ {! e- d. Z/ t& ~, M: aMER Manpower Estimate Report. Mercury " B: W$ e) z+ \$ bCadmium 5 R: W) E3 I* h7 t. t, I) oTelluride (HCT) 6 j E; A, `: ?& {8 ^6 z. u4 x; a* Q' E XInfrared sensing material. MES Military Essential Support.

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MESAR Multifunction Electronically Scanned Adaptive Radar (UK). MESFET Metal Schottky-Gate Field Effect Transistor. ' q/ q" z8 k2 |5 ZMesosphere The portion of the atmosphere from about 30 to 80 kilometers above the earth. % I* y/ Z7 U1 J' ?5 eMethods Engineering ; s4 ?: `3 ? {8 ]The technique that subjects each operation of a given piece of work to close analysis to eliminate every unnecessary element or operation and to approach * Z$ o: i/ p q/ c4 T9 X) i. Vthe 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 # b( O, E! u: C5 M* I: Lstandard times; and occasionally devising and administering various incentive 3 H! w6 G5 t+ ~6 uplans. 2 s, X/ P/ d9 T& cMETO Minimum Effort Task Order. $ \/ S( D4 |! w9 h1 E& G zMETOIA Minimum Effort Task Order Impact Assessment. 8 e+ J" Y8 g6 @' IMETOP Minimum Effort Task Order Plan. 8 x: J" C8 U0 D4 b, m$ ^METOR Minimum Effort Task Order Requirement. , ~* _5 v2 P' o' C4 AMetric (Software). An indicator, which measures some specific attribute of the software development process. * S2 [ `* U M2 zMDA GLOSSARY, VER. 4.0 M 181 ' l; W2 K3 w4 u$ |Metrology The science of measurement, including the development of measurement standards and systems for absolute and relative measurement. Used to determine conformance to technical requirements including the development of - B1 i. D/ y! D) ?, mstandards and systems for absolute and relative measurements. 4 T" M" H% p: z% S; G" gMeV Million Electron Volts. MEZ Missile Engagement Zone. & P3 L/ j) e1 Y' C6 J1 pMFAR Modular Multifunction Phased Array Radar. MFEL Medical Free Electron Laser. MFG Master Frequency Generator. MFL Multiple Folded Ladar. 1 K: D: I7 d' Q. WMFLOPS Million Floating Point Operations Per Second. + e! X6 b$ o0 ?3 P# @: {! g9 {3 CMFP Major Force Program. # ^- E5 Y; A, KMFR Memorandum For Record. ' m0 Z6 A; B- N0 kMFS MFS Communications Company, Incorporated. 0 @, H G% X! |# m) u( lMFSIM Multifunction Simulation (PATRIOT), Huntsville, AL. ! f* J, v9 k n3 g. s" Y3 x: BMGEP Mobile Ground Entry Point. % z' f2 n8 {! S6 ?: qMGLI Midcourse Ground Launched Interceptor. % H5 u+ W" Z( C) \2 CMGMT Management. MGTS Mobile Ground Telemetry Station. MHD Magneto-Hydro-Dynamic. # @4 m* ^( Y7 ?5 {MHE (1) Material Handling Equipment. (2) Mobile Hauling Equipment. MHV Miniature Homing Vehicle. mi Statue mile (5,280 feet). $ |6 K/ c& w2 V$ a1 a2 K6 ?- w0 BMIC Management Information Center (MDA). ) m* x) R& l6 Y _MICOM U.S. Army Missile Command, Redstone Arsenal, AL. 1 {- @0 O. r7 Y0 ~5 I# {) h& B* pMIDAS Missile Defense Alarm System (US). Mid-Course Defense Segment (MDS) The portion of the BMDS that defeats ballistic missiles during the period of flight 3 E/ ^) z& c! ] Tbetween boost and atmospheric reentry. . B+ @* c/ O% v0 {$ V1 zMidcourse $ F, I! |) @: G) P$ JGuidance The guidance applied to a missile between termination of the boost phase and - Q: n5 ]" L8 e6 Q8 Tthe start of the terminal phase of flight. MDA GLOSSARY, VER. 4.0 M 182 Midcourse (MC) ) h. r; o- \5 ~6 H% E$ cPhase 5 Y6 E* ?8 v$ Q9 K, B) X: k1 x$ ?5 i' zThat 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 ) W1 i: u k. Adecoys and is no longer a single object, but rather a swarm of RVs and penaids ' X6 _& V6 f+ y. c, c: X3 f B# J- h& _falling freely along present trajectories in space. Midcourse Space Experiment & I6 v' ^( l; g: \% Z4 ^3 e/ U(MSX) Designed to provide demonstrations of midcourse acquisition and tracking from # M: R; N" b4 m+ p! Z+ u) _% d |space, technology integration of optics, focal plane arrays, signal processing, # e* G* N9 l9 a3 ]# `0 z3 hetc., and collect background phenomenology measurements and target ( t4 A! @- V% i# fsignature measurements. 4 c0 E7 _$ C2 ?Midgetman US ICBM. MIDI Musical Instrument Digital Interface. ( B, }& q: ^: i( E; |! F0 aMIDS Multi-Functional Information System (USN/NATO/Telecomm term). : k! I2 N; L1 G; wMIIRD Mission Issue Identification and Resolution Document. - h. z/ g: Y4 ?. }0 c8 y. C7 k8 n MMIJI Meaconing, Intrusion, Jamming, and Interference. MIL Man-in-the-Loop. * O5 m6 F: e- H) ?* U4 CMIL-HDBK Military Handbook. MIL-STD Military Standard. 2 ^$ a; [$ u# p0 I7 u0 x+ j# G TMILCON Military Construction. 6 s4 i5 h3 F* q- B$ O. o: _- cMilestone Decision . f+ ], m9 p3 Z+ b6 s, `5 gAuthority 8 ~( Z6 i: K/ V$ g5 a% gThe individual designated in accordance with criteria established by the Under Secretary of Defense for Acquisition and Technology to approve entry of an acquisition program into the next phase. $ x! T# M1 ?' ~; l: R: g3 rMilestones (MS) Major decision points that separate the phases of an acquisition program. 0 N) j7 B' s& N3 j/ uMilitary Capability 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) 1 }# d+ |* n8 u9 l. _- Y2 kModernization -- Technical sophistication of forces, units, weapon systems, and equipment; c) Readiness -- The ability of forces, units, weapon systems, or 1 Q& ]3 V( d- |! X7 S- ~6 m0 p/ M+ E6 ^equipment to deliver the outputs for which they were designed; d) Sustainability -- The ability to maintain the necessary level and duration of operational activity # d8 d0 W; O1 }6 ~4 W2 I1 e2 Mto achieve military objectives. Sustainability is a function of providing for and maintaining those levels of ready forces, materiel, and consumables necessary to support military effort.