航空缩略语词典

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Kinetic Kill 4 F+ m% D0 T5 E3 f6 MVehicle ; A) u, D( c9 u% j- T7 P3 sIntegrated % \) g/ g& T/ i+ w# J3 c2 FTechnology : T4 M" N2 t* y: \Experiment Y6 b! k2 L, ]8 j(KITE) A series of test flights at WSMR to demonstrate HEDI technologies. KITE (1) Kuiper Infrared Technology Experiment. (2) Kinetic Kill Vehicle Integrated # T/ V: `# Q4 jTechnology Experiment. o4 [1 {2 @- V7 C) G4 `2 m! L% ~( e' _KKV Kinetic Kill Vehicle. : y5 R M) O: b$ t8 l' dKKVWS Kinetic Kill Vehicle Weapon System. KL Kill Level. ; Q7 j6 {3 h% u; w; xKm Kilometer. Km/h Kilometer per hour. , T# T9 W3 ~0 b- t( f, SKm/sec Kilometer per Second. $ U8 D6 A! u2 WKMCC Kwajalein Mission Control Center. $ C# `$ Q8 Z. l0 C5 yKMR Kwajalein Missile Range. ; ?& ?9 j- r& }5 u0 Q2 WKMRSS Kwajelein Missile Range Safety System. KPP Key Performance Parameters. ; Q/ {4 x" e* n; RMDA GLOSSARY, VER. 4.0 K 159 Kr Krypton. KREMS Kiernan Reentry Measurement System. ( x8 V" u, w% _& g& L0 i- GKSC Kennedy Space Center, FL. Kt Kiloton. ( n" O8 _4 Y; p# x8 w2 _KTF Kauai Test Facility, Barking Sands, HI. KTP (1) Key Technical Partner. (2) Key Test Partner (3) Key Technical Parameters. Kts Knots. KV Kill Vehicle. . p3 G7 z% { U* Akw Kilowatt. : \$ W- E/ Q* h y1 {KW Kinetic Warhead. MDA GLOSSARY, VER. 4.0 L 161 0 S% J) Z# O6 X3 l; U6 ]6 BL&TH Lethality and Target Hardening. L1SS Level 1 System Simulator. L2SS Level 2 System Simulator - NTF. LAA Limited Access Area. . M5 R! F2 e; t! |3 Z* PLAAD Low Altitude Air Defense. 3 G! A. q% N1 iLAAFB Los Angeles Air Force Base, CA. LABCOM Laboratory Command. LABM Local Area Battle Manager. : o3 Z( b. h/ y( V! |LABP Look Ahead Battle Planner + l5 @+ e, B. S% ~% iLAC Low Authority Control. 7 T* B5 T/ [; E- @! ?LACE Laser Atmospheric Compensation Experiment (an SDIO/NRL satellite launched February 1990 and turned off July 1993). # z0 T4 R2 C. k3 n `9 g. {LACM Land Attack Cruise Missile. LADAR Laser Detection and Ranging. : S6 j7 a7 P- {9 y2 F! zLaddering Down A hypothetical technique for overcoming a terminal phase missile defense. Successive salvos of salvage-fused RVs attack. The detonations of one salvo ) y1 c1 f4 J+ j, @: R7 Edisable local ABM abilities so that following salvos are able to approach the target more closely before being, in turn, intercepted. Eventually, by repeating 8 N4 }% m4 P: L9 Q Ethe process, the target is reached and destroyed. LADL Lightweight Air Defense Launcher (USA TBMD term). j9 g6 R4 l# h) z# _4 ULADS Low Altitude Demonstration System. : G K- }# `; q& u0 RLAFB Langley AFB, VA. LAMP Large Advanced Mirror Program. # Y" L$ v. m1 i/ B1 WLAN Local Area Network. Landsat Land Satellite (NASA program’s satellite). LANL Los Alamos National Laboratory, NM. LANTRINS Low Altitude Navigation and Targeting Infrared Night System. LAO Limited Attack Option. LAPL Lead Allowance Parts List (Navy term). LARC Langley Research Center, Hampton, VA. MDA GLOSSARY, VER. 4.0 L 162 Large Optics The technology of constructing and employing mirrors over 1 m aperture to direct 1 X Q; O! w% C/ ?and control high power beam weapons/systems with large coverage, or to provide high resolution or high sensitivity for detection and/or imaging. 9 r. Y! D( ~" O" F$ F: JLASA Large Aperture Seismic Array. + ]. c: @! k- n+ P6 ]5 ~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 7 G3 h6 J% u$ V2 i) Q( E" Smolecules including excimers or atoms) or in the form of plasma (consisting of ions and electrons). Lasant materials useful in high energy lasers include carbon & `) x9 ?$ ~" _7 b9 T7 Odioxide, carbon monoxide, deuterium fluoride, hydrogen fluoride, iodine, xenon $ W3 B5 M x& d; Hchloride, krypton fluoride, and selenium, to mention but a few. LASE LIDAR Acquisition and Sizing Experiment. Laser An active electron device that converts input power into a very narrow, intense ( d+ m. w- J2 v8 hbeam of coherent visible or infrared light; the input power excites the atoms of an $ x+ w4 s S- _3 a; g3 Aoptical 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. 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 ) B4 ]8 x, q4 Z( ]! V$ wbeam providing information on the distance and velocity of the target. , ^( e* A( I9 G( ^3 DLaser Guided Weapon A weapon that uses a seeker to detect laser energy reflected from a laser , z) E- S% x4 g5 O2 Y B' d2 ~marker/designated target and, through signal processing, provides guidance , i% c' L$ e/ V, zcommands to a control system. The control system then guides the weapon to 6 i7 A& Z5 y9 N" g4 Q Vthe point from which the laser energy is being reflected. 5 {8 d; D) l/ |6 PLaser Imaging Radar 0 u( _) l( j6 s9 Z; E- [( Z) T$ SA 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. 1 ?' X, T, f; z- ~: Y6 hLaser Seeker A device based on a direction sensitive receiver that detects the energy reflected from a laser designated target and defines the direction of the target relative to / A A: ]- c$ F8 d/ G+ J8 ^the receiver. See also laser guided weapon. ( N% `: z' o4 c! n+ ^9 v) Z% k/ ELaser Target % Z1 D6 T/ L0 ODesignating System 4 m2 J0 X% P$ `% u1 w) Z1 NA system that is used to direct (aim or point) laser energy at a target. The system consists of the laser designator or laser target marker with its display and : B" L) Z2 E0 T/ Econtrol components necessary to acquire the target and direct the beam of the : m ?: l% c; M( Rlaser energy thereon. Laser Tracker A device that locks on to the reflected energy from a laser marked/designated 6 f- C0 \ r2 `2 |# N& b! Nand defines the direction of the target relative to itself. Laser Weapons Devices, such as photon generators, which produce a narrow beam of coherent . @4 S& k1 G+ w R, w( Hradiated power greater than 1 MW. LASERCOM Laser Communications. 2 I$ q% X/ v: `1 y4 c4 X6 sLATS Long Wave Infrared Advanced Technology Seeker/Sensor.

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MDA GLOSSARY, VER. 4.0 L 163 ! t; |! {3 g' F' l3 B, w# _6 ELaunch Azimuth Missile launch location measured in degrees clockwise from the local northpointing longitude line at the launch site. (USSPACECOM) * g. J" r+ | Y5 ALaunch 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 of the booster type. (USSPACECOM) & c2 D) M) A% |) vLaunch Point Determination . n# M+ ]* v j; ?With computer methods, uses missile track observation to estimate the point on the earth’s surface from which the missile was launched, expressed in terms of . J* l1 V' O7 q, O( W2 @circular error probable. Launch Under Attack (LUA) / Y% a+ m- x0 J9 sExecution by National Command Authorities of Single Integrated Operational Plan forces subsequent to tactical warning of strategic nuclear attack against the " {5 I5 L4 T5 N/ OUnited States and prior to first impact. # S# a/ c8 X7 R2 ILaunch ' x8 X1 c5 M9 ?4 tVerification ) z1 D8 _7 y4 D- R- D8 gConfirmation of a detection of a booster launch by receiving a report from a 7 ]" A# M# Q: O7 Usensor separate and independent of the sensor that initially detected a specific 6 C$ v5 b& D# gbooster launch. Layered Defense A defense that consists of several sets of weapons that operates at different # R6 i; e3 J# H& L& q/ }% G) R" qphases 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 layers (e.g., midcourse, terminal). % u- z+ \! _- }8 p2 k- _' |lb Pound. - S4 G/ [. _5 z& g5 U* _' RLBL Lawrence Berkeley Laboratory, Berkeley, CA. y! d( G. n' G0 l9 Z9 _9 N7 YLBM Localized Battle Management/Manager(s). LBTS Land Based Test Site. LCC (1) See Life-Cycle Cost. (2) Launch Control Center. 1 W6 R H0 y8 b& wLCCE (1) Life-Cycle Cost. (2) Launch Control Center. (3) Land Component Commander (JCS term). * {# ?( c+ }/ L3 r. U* A TLCCS Life-Cycle Contractor Support. 8 f! m: g X1 }8 WLCF Launch Control Facility. LCM (1) Life Cycle Management. : o6 H- Q, X) Q# \; Z3 |) f(2) Lightweight Communications Module (USAF TelComms/Computer term). LCN Logistics Control Number (ILS term). 8 i6 w0 `% f8 d8 b- p) bLCOM Logistics Composite Model. LCN Logistics Control Number (ILS term). LCS Laser Crosslink System. ' b% h" \' }, a0 C. m, x& h3 F/ xLDC Less Developed Country. % a" z& ?$ q- G( I8 [6 K }LDS (1) Layered Defense System. (2) Lexington Discrimination System. (3) Limited + u0 p! p$ ]2 d$ m% yDefense System. MDA GLOSSARY, VER. 4.0 L 164 LE Lethality Enhancer (PAC-3). 3 H2 ^ x# A( H$ RLead Component/ Service . M* @* z9 u3 d _; o& WThe DoD Component designated by SECDEF to be responsible for management of a system acquisition involving two or more DoD Components in a joint program. LEAF Law Enforcement Access Field. / G2 X- I; W4 ALeakage The allowable threat objects passing through a BMD system expressed as a 3 e8 {$ e) O! }percentage of the threat. To ensure overall system performance, permitted leakage is “budgeted” among individual BMD phases and functions. 0 l6 b( i: \; m: E* DLeakage (Max) The maximum allowable threat objects passing through a BMD system expressed + B o* v# `$ uas 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. 8 n: q0 A7 l* Z5 t6 qLEASAT Leased Satellite. Least Privilege This principle requires that each subject in a system be granted the most restrictive set of privileges (or lowest clearance) needed for the performance of authorized tasks. The application of this privilege limits the damage that can ' r6 ] H+ T- [& H( k& w& |- wresult 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). . G5 Q4 r5 a! OLEI Low Endoatmospheric Interceptor. 3 i G0 A1 p7 J% J' ZLEIP Link Eleven Improvement Program (USN term). LEL Low Energy Laser. LELWS Low Energy Laser Weapon System. . _) F9 W M2 O" eLEM Logistics Element Manager (ILS term). & r8 F/ h& ^, }8 o: OLEO Low Earth Orbit. LETS LWIR Environment and Threat Simulation. Level of Effort (LOE) ' u- u8 O. L/ ~0 t# a3 O/ ?9 b: bEffort of a general or supportive nature that does not produce definite end products or results, e.g. contract man-hours. 0 \7 K' j6 D- uLeverage (1) The advantage gained by boost-phase intercept, when a single booster kill may eliminate many RVs and decoys before they are deployed. This 0 [/ |9 X) F( w' m* e2 a2 ^7 Icould provide a favorable cost-exchange ratio for the defense and would ' y. E6 t1 k) E$ l: h/ vreduce stress on later tiers of the SDS. (2) In general, the power to act or influence to attain goals. LF (1) Landing Force. (2) Low Frequency. MDA GLOSSARY, VER. 4.0 L 2 K' k$ b% \% B+ ?- }8 ?165 8 t) e1 r4 o4 y. P1 i l t8 cLFIE Live Flight Integration Exercise. LFOV Limited Field of View. LFS Loral Federal System, Gaithersburg, MD. LFT&E Live Fire Test and Evaluation. + r4 d$ l* @" G% ULGB Laser Guided Bomb. # n4 f& f* z5 Z* L' DLGM (1) Laser Guided Missile. (2) Loop Group Multiplexer. LGSM Light Ground Station Module (USA CECOM term). LHO Amphibious Assault Ship. " B3 A8 ]9 W# n; PLi Lithium. " P/ v! ?/ z" n" c4 N% xLIC Low Intensity Conflict. ! l E. U) r$ u: p0 N/ wLIDAR Light Detection and Ranging. 4 [ W; B+ F* U6 k/ X# ^) MLife Cycle (1) The total phases through which an item passes from the time it is initially developed until the time it is either consumed or disposed of as being excess to all known materiel requirements. ; ?. K3 Y- ]* u3 ^, y(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 (LCC) , D- m3 v- z$ d$ w- lThe total cost to the Government of acquisition and ownership of that system * ^6 ] s% g8 X# y$ oover its useful life. It includes the cost of development, acquisition, support and, 2 _; g$ d4 M7 P) S7 R, owhere applicable, disposal. 7 P5 G2 L9 B& Z! [Life-Cycle 7 b+ n( F! x4 T c H3 }Management 5 k9 {/ w% P' I1 m8 C% r/ k- HProcess for administering an automated information system or hardware support 0 `4 v/ q. p# ~( Y9 G" Csystem over its whole life, with emphasis on strengthening early decisions which ! o2 K- V9 Q, j$ Fshape costs and utility. Life-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. Life Cycle of a Weapon System 3 _5 e; c8 H1 }4 _9 gAll phases of the system's life including research, development, test and evaluation, production, deployment (inventory), operations and support, and disposal. 8 o2 u6 K7 H( Y4 s. zLife Jacket The life support storage container for a Brilliant Pebbles singlet. The life jacket * m8 n0 G, b1 j; ocontains subsystems that perform power, communications, and environmental protection functions. 8 T' _; B! Z0 J% W% ULight Detection and Ranging (LIDAR) , p( O9 _, n+ y6 XA precision probing instrument used to measure concentrations of different 5 |' M0 E- n3 C9 R' i0 z+ C3 h) a2 Pgasses 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. LIMIDIS Limited Distribution. - [# E. \3 q2 f) \5 GMDA GLOSSARY, VER. 4.0 L 6 v. V! y( ?0 B% G' m, v* l166 , o" m* S$ U2 r% A7 D4 d2 \! KLimited Attack An attack on the U.S. and its allies, which provides a stressing timeline, and is / Y, _, o/ Q9 Z T. l4 ?! Ugeographically distinct. Not an all-out attack or mass wave. Limited Defense System (LDS) The development of systems, components, and architectures for a deployable anti-ballistic missile system (as described in section 232(a)(1) of the 1991 Missile ; H: E! L( \2 o4 w% a* \Defense Act, as revised) capable of providing a highly effective defense of the . |1 Y: k2 y# a2 S' Q# [United States against limited ballistic missile threats, including accidental or unauthorized launches or Third World attacks, but below a threshold that would " q. R) ?$ D) ?/ Ibring into question strategic stability. Limited Operational Capability (LOC) A point in time when the first set of sensors and weapons can be employed to provide a limited protection system. 2 @6 H f% C4 r T: \: oLimited Production ; y4 H: w" O2 ]0 o1 {0 O) I4 J1 N, zThe 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, ; S; o1 h0 H. c( M( I9 ]! J0 ^* s2 jmanufacturing process final proofing, and product engineering and to verify a factories capabilities prior to a decision to proceed with production. Decision 1 t* x% B/ _% }) D6 {6 wusually made near the end of EMD or at Milestone IIIA or equivalent. (Also ' m4 l0 _: N1 M$ {called Low-Rate Initial Production or Pilot Production.) 6 C4 W7 u" [) \Limited Test Ban Treaty The bilateral Treaty signed and ratified by the United States and the (former) , _% y5 H8 q F: w! d0 m( j0 |U.S.S.R. in 1963, which prohibits nuclear tests in all locations except underground, and prohibits nuclear explosions underground if they cause radioactive debris to be present outside the territorial limits of the state under : R0 G( c( y3 _$ Q7 @. Owhose jurisdiction or control the test would be conducted. . N* a7 T3 I/ ]+ b- _0 w/ xLIN Line Item Number. Linac Linear Accelerator. Line Item ( Y$ m% T Z6 f0 C% O8 a(Budget) A specific program end item with its own identity (e.g., B-1B Bomber). : B8 ]* @& _4 w; r" ^Line of Sight (LOS) ; k- R3 w. f& q0 L2 g RThe line from sensor to target necessary for the commencement of the detection, acquisition, track, and identification of a target. Line Replaceable % @' f' L* y" n# z: y) D2 Z" h* a. bUnit (LRU) ) E# E/ E6 S( d- q3 DAn essential support item removed and replaced at field level to restore end item to an operationally ready condition. (Also called Weapon Replacement * ^" C! c0 \) y6 \* gAssembly and Module Replaceable Unit). ?+ _' x% o) i, U4 E- HLink-16 TADIL-J. 3 I+ v* k% _4 ?5 c/ ? |Link Quality Evaluation ! ]8 D2 d2 [! E& |3 w0 G- tThis testing of links to create bit error estimates and monitors natural or induced link interference. 3 u9 Y e _& Y4 T K& F5 {" }3 j8 NLIP Lethality Improvement Plan. Liquid Fuel Booster (LFB) Target booster being developed to mate with current reentry vehicles and emulate the short/medium range threat. LIS Laser Isotope Separation. LITINT Literature Intelligence. MDA GLOSSARY, VER. 4.0 L 167 1 m2 W: b' A+ N( kLive Fire Test And Evaluation 5 b% V+ E$ C- D. v5 _(LFT&E) Survivability testing and lethality testing required before full-scale production. % O B2 `1 T) ^Must be conducted on ACAT I and II programs for: (a) A covered system (a $ n; |* l3 [1 I' R3 zconventional 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. 7 V, e6 u j# j( _LIVEX Live Exercise. LIWA Land Information Warfare Activity. + Z0 U2 g' ~2 J6 aLJ Life Jacket (BE term). % L6 N$ a1 C; r, O" tLL (1) Lincoln Laboratory, Lexington, MA. (2) Legislative Liaison. 1 Q. I- m4 `+ c/ _# D- z! oLLM Long Lead Material. LLNL Lawrence Livermore National Laboratory, Livermore, CA. 4 s, r9 g% p$ b6 iLLTIL Long-Lead-Time Items List (ILS term). 4 s" N/ o! d% l& v' t0 T/ n8 ]LLUM Low background LWIR Uniform Mercury Cadmium Teloride (HgCdTe). LM (1) Lockheed Martin, a defense industry contractor. (2) Logistics Manager (ILS term).

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LM/GES Lockheed Martin/Government Electronic Systems. LMA Lockheed Martin Astronautics, a defense industry contractor. 3 L) K7 ?5 b' x6 y+ HLMANS Lockheed Martin Aeronautic and Naval Systems. 8 s9 n; |& C6 }; K1 q. ~LMC Late Midcourse. # k9 _3 z, p6 F, t" zLMFBR Liquid-Metal Fast Breeder Reactor. LMIS Logistics Management Information System. 4 Y5 ~& q4 n% X! \LNA Low Noise Amplifier. + l1 X6 |% q4 ~7 l8 m mLNC Local Network Controller. LNE Low Noise Exciter (Electronics Engineering term). / r5 H; c3 @: }$ n4 Y, FLNO Liaison Officer. LO (1) Local Oscillator (Electronics Engineering term). ! l+ h7 I9 p) @ P2 n; y L(2) Low Observables (LODE-related term). 6 Y2 F2 V$ c# qLOA Letter of Agreement. ( P0 ]8 U- F( h5 n& cLOAD Low Altitude Defense. ( w2 W0 e& g& g- c1 m zLOC (1) Lines of Communication. , J, x8 ]( T* E: w(2) Lines of Code. (3) Limited Operational Capability. MDA GLOSSARY, VER. 4.0 L % _7 h/ k% g& d- P- ~% l' I |168 1 [! V5 G% b4 J; U6 pLOCAAS Low Cost Autonomous Attack System (USAF term). 4 \! a2 s7 u- \9 K! ^) |Local Assessment of * L6 ?: o, b' L/ E$ ?Engagement The assessment of an engagement by high-resolution fire control sensors. 8 w- c( t! z' E \; ^Local Environment 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 Element Processor Emulation and provide a realistic response to the Element 4 Z- p2 D2 T5 k9 I5 n2 I0 H+ eProcessor or Element Processor Emulation. Lock On Signifies that a tracking or target-seeking system is continuously and automatically tracking a target in one or more coordinates (e.g., range, bearing, elevation). , I6 M ~" F' N @LODE Laser Optics Demonstration Experiment. ; S. b' M/ ~" G4 OLODTM Large Optics Diamond Turning Machine. LOE (1) Level of Effort. (2) Letter of Evaluation (AF). LOF Lifejacket Orbital Flight (BE term). Lofted Trajectory Trajectory with an apogee greater than the minimum-energy trajectory to the same range. . T9 P" n1 F& Z+ bLOG Logistics. LOG.WIPT Logistics Working-level IPT ; E% g+ Y0 o( |7 N6 `: D3 rLOGAM II Logistics Analysis Model II. 3 z. T; i$ @8 }6 W% P# u& KLOGFAC Logistics Feasibility Analysis Capability. ) |9 _3 M/ H d1 r$ q A5 RLOGFOR Logistics Force. 2 x( L# A) ~) g7 tLogistics The science of planning and carrying out the movement and maintenance of forces. In its most comprehensive sense, it includes those aspects of military operations which deal with: (1) design and development, acquisition, storage, movement, distribution, maintenance, evacuation, and disposition of materials; : n- J7 W& \1 |1 J6 `(2) movement, evacuation, and hospitalization of personnel; (3) acquisition or " c. V8 \5 M' o Cconstruction, maintenance, operation, and disposition of facilities; and (4) 5 t2 l+ i/ g4 P4 v+ v% @acquisition or furnishing of services. Logistics Support The supply and maintenance of materiel essential to proper operation of a system in the force. Logistics - Y j! t% P- I0 g& E) E- D( MSupportability The degree to which planned logistics support (including test, measurement, and - [+ n6 P: ?0 F1 a# bdiagnostic equipment; spares and repair parts; technical data; support facilities; transportation requirements; training; manpower; and software support) allow ' l6 r* \$ G# X9 m- d+ W8 g9 jmeeting system availability and wartime usage requirements. MDA GLOSSARY, VER. 4.0 L ! K$ _4 a% p* w1 U169 Logistics Support Analysis (LSA) 7 _0 `. ~0 I) x! ^" nThe selective application of scientific and engineering efforts undertaken during the acquisition process, as part of the systems engineering process, to assist in: causing support considerations to influence design; defining support requirements that are related optimally to design and to each other; acquiring the required support; and providing the required support during the operational phase at minimum cost. Logistics Support Analysis Record (LSAR) # U! b% `: ^$ @9 y2 @. }( D6 c9 }+ g$ RA formal tool under MIL-STD 1388-2A that uses records/forms to document operations and maintenance requirements, RAM, task analyses, technical data, 2 d. ~1 A& v I9 Y8 Dsupport/test equipment, facilities, skill evaluation, supply support, ATE and TPS, / l) ~9 v) L( `, d! x) ~8 Sand transportability. LSAR is the basis for training, personnel, supply provisioning and allowances construction, support equipment acquisition, $ ~0 Z5 j& S5 U# hfacilities construction and preparation, and for maintenance. LOGPLAN Logistics Plan. / }- o2 f# `- u, \7 } ?LOGSIM Logistics Simulation Model. LOI (1) Letter of Instruction. (2) Letter of Intent. 4 `) z9 x0 O, `/ fLOMEZ Low Altitude Missile Engagement Zone. Long Lead Items 0 m) i; w* Q$ d2 O0 ~/ H9 ~4 ALong Range Air ( X* I, D$ R6 c/ ~Launched Target (LRALT) : Z" I! ]1 Q, _; @$ @# bThose 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 , p; }$ M2 j8 S8 adesirable in order to meet the earliest possible date of system completion. ! x) s" W6 d' U' G& i6 h" dTwo-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. " r/ _" G9 S& l! U( vLOR Level of Repair Analysis (ILS term). LORA Level of Repair Analysis (ILS term). LOS (1) Line of Sight. (2) Large Optical Segment. 5 Q1 f, x. M4 p+ X2 }) l6 iLOTS Logistics Over-The-Shore. LOW Launch on Warning.

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Low Altitude Demonstration System (LADS) ' P# x) ]1 O& pPart of the SBIRS Low Program Definition and Risk Reduction (PDRR) program 0 D1 C4 ]2 }9 O( r# Cphase. 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 " E7 k: `) j) ~3 V. Fconcept and collect phenomenology data. Low Earth Orbit 3 P! d$ x( `9 a(LEO) These satellites are at altitudes between 100 and 400 nautical miles. They : x% X9 w9 B" m( s0 s) S; D) Thave 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 r% z$ v1 Z0 |5 x! S+ s/ v2 Ssubject to orbital perturbations due to atmospheric drag and earth gravitational anomalies. Low D$ ]. t' T# Q# |- b W6 m. EEndoatmosphere That portion of the earth's atmosphere, generally below 40 km altitude. MDA GLOSSARY, VER. 4.0 L 4 Z8 a2 \1 @: [/ ~' p! N170 + d3 u: f% E' v* {; ]. rLow-Rate Initial 7 ^5 l* J/ G. n% I6 AProduction (LRIP) The 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 M% a! E2 I( m+ l* E+ ^orderly increase in the production rate sufficient to lead to full-rate production [1 h& k B/ r, f Y3 yupon successful completion of operational testing. LOWKATRER Low Weight Kinetic Energy Active Tracker. 0 ~% M! s5 B% q L5 u5 w# {LOWTRAN Atmospheric and Interstellar Background Signature Model. LPAR Large Phased Array Radar. - _, ~! V2 E5 _LPD Low Probability of Detection. LPE (1) Liquid Phase Epitaxy. - q+ ^( |' t/ ]. E& X% f5 A(2) Launch Point Estimate. 8 R1 I/ u4 m. nLPI Low Probability of Intercept. LPS Limited Protection System. LR Long Range. 5 [1 e3 @2 S% I- a2 R# O7 pLRA (1) Line-Replaceable Assembly. (2) Launch and Recovery Element. + w3 ~6 A/ j* J7 R1 NLRB Liquid Rocket Booster. LRC Lewis Research Center, Cleveland, OH. LRE (1) Latest Revise Estimate. (2) Launch and Recovery Element. LREP Light Replicas. LRF Laser Range Finder. LRINF Longer Range Intermediate Nuclear Forces. $ E/ X! s9 y6 S+ [LRIP See Low-Rate Initial Production. 8 H5 ~0 `, e8 |+ ~LRIP-OT Low Rate Initial Production – Operational Testing. LRTBM Long Range TBM. 0 A. h% B( z4 J& R) QLRTNF Long-range Theater Nuclear Force. LRU (1) Line Replaceable Units. (2) Line Replacement Units. LS Launching Stations (PATRIOT). LSA Logistics Support Analysis. 2 J4 ^* Y. p- |' q$ ^LSAP Logistics Support Analysis Program. $ L+ D6 }% C, C0 SLSAR Logistics Support Analysis Record. LSART LSA Review Team (ILS term). LSAT Laser Satellite. 2 m9 t4 ?# J, C1 {2 R* mMDA GLOSSARY, VER. 4.0 L 171 - [; F3 J+ e0 m) p( ULSAWG LSA Working Group. LSE Lifetime Support Engineering (ILS term). ; A+ D) n% {7 ^7 o1 hLSEA 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. 7 K) }+ _' U3 i) s8 `# B0 sLSTS Launcher Station Test Site. , p7 I6 L* ?- Z0 lLTA Lead Time Analysis. ( x0 Y) v( s0 J) A& w t1 j0 HLTBT Limited Test Ban Treaty. LTD Laser Target Designator. LTH Lethality and Target Hardening. LTS Low Temperature Superconductor / z% V8 `3 p: @$ Q: sLTV Launch Test Vehicle. LU Launch and Update. 2 K' i* \, u! G3 [" Y/ B1 o$ VLUA Launch Under Attack. LUP Limited U.S. Protection. LUT 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 M/ N2 |; T2 `/ C- wLW Laser Weapons. % _' h0 i# S \9 y* _LWAN Local Wide Area Net. LWIR See Long Wavelength Infrared. 9 x d2 h; V& p( D$ j" m0 ~LWIR 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 0 ~7 T8 H1 T7 R' O, q& v. Q: h173 % t( h1 h9 ^0 f3 W- Km (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. 5 n# m6 ]0 y. W, _M-T-M Model – Test – Model. - \6 F% r5 b8 t( D8 B$ r( ^ S0 TM/LWIR Medium/Long Wavelength Infrared. M/P Manpower/Personnel. 4 X/ r4 c# C' ]8 K; _MAA Mission Area Analysis. MAAG Military Assistance Advisory Group. MAB Missile Assembly Building. MAC (1) OBSOLETE. Military Airlift Command. See AMC. (2) Maintenance Allocation Chart. 2 O9 h( N: @/ `) f; C4 qMACCK Multi-Application Command and Control Kit (GD term for IVIS follow-on). MACCS Marine Corps Air Command and Control System. X4 N7 k, {: ~6 `' Z0 p; nMACOM Major Army Command. ; t O2 `/ I" j" `. UMAD (1) Mission Area Deficiency. (2) Mutually Assured Destruction. ' U/ a/ V2 j5 ]% i6 uMADCAP Mosaic Array Data Compression and Analysis Program. MADS Modified Air Defense System. MAE Medium Altitude Endurance. MAGTF Marine Air-Ground Task Force. ' Y0 y; z3 a* Z" l0 w& QMain Beam The primary directional EMR emitted from radar transmitters. ' s8 n8 a4 H+ h5 N- ]' ?' lMaintainer An individual responsible for retaining the major defense system in or restoring it ! ^, k' B2 E& jto a specified condition. Maintenance activities include inspection, testing, 0 G' \( c% Q8 z; c! _servicing, classification as to serviceability, repair, rebuilding, and reclamation. Maintenance " O# n) q: X1 I( r! b kConcept/Plan & Y: K# e+ J' x9 _3 e* kA description of maintenance considerations and constraints for system/equipment under development. A preliminary maintenance concept is " w! y: q0 A8 U8 Z: Y* L) Sdeveloped and submitted as part of the preliminary system operational concept for each alternative solution candidate by the operating command with the / J% T4 L, L% `3 ~6 j3 K7 b, d2 x2 Iassistance of the implementing and supporting commands. A major driver in : @7 ?4 p2 z: m- h# qdesign of the system/equipment and support planned for it. 6 Y' X& D8 [: w3 V, ^- a! ~MDA GLOSSARY, VER. 4.0 M ( N8 o+ f# @" S, i; I174 6 b- g2 X* z$ ]Maintenance ( O& |/ D' _' _) o; ?) S2 yOperations % X6 K7 N* O( N, n- `6 u0 O3 KThe corrective and preventive maintenance operations that do not require a deployment decision; it includes correction and subsequent validation testing and the update of relevant status configuration, maintenance, and inventory ) ~6 ~, i( M% m' p" P0 N, Z6 xdatabases. & z' N! W+ \6 c+ T" d8 uMaintenance Planning The process conducted to evolve and establish maintenance concepts and B& {8 b' D! z- e4 Drequirements for the lifetime of a material system; one of the principal elements ; R. }& ], a4 [: ?# {7 y/ cof ILS. 0 p" e0 M/ J5 H' v- ?" ^! TMAIS Mobile Automated Instrumentation Suite (USA term). MAISRC Major Automated Information System Review Council * i& [, ~+ U* d8 tMAJCOM Major Command (USAF). Major Automated Information System Review Council (MAISRC) & m8 f; C% L7 c/ gThe 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 ' | o* n3 g5 H8 K' k2 E/ ^9 J6 wAcquisition Program / r4 w9 S x: IAn acquisition program that is not a highly sensitive classified program (as 1 F9 V2 ]* t/ kdetermined by the Secretary of Defense) and that is: 8 G) q4 e/ M: j9 l1. 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 8 v, Q z6 m- G+ g* Ito require: 5 ~8 g" Q0 Z: t' z, E8 F( ]/ va) An eventual total expenditure for research, development, test, and 6 E$ X) D; ?3 B: D: ]evaluation of more than $200 million in fiscal year 1980 constant dollars (approximately $300 million in fiscal year 1990 constant , r- b/ Y$ D, q* J2 @dollars), or 4 C! x( T3 ?% X# ^- s$ vb) An eventual total expenditure for procurement of more than $1 billion in fiscal year 1980 constant dollars (approximately $1.8 billion in fiscal 4 y2 G b9 @9 }" N7 T* `( o7 _year 1990 constant dollars). Major Modification A modification that in and of itself meets the criteria of acquisition category I or II or is designated as such by the milestone decision authority. Major modifications require a Milestone IV decision unless the decision to modify results from one of 9 t3 j! y) R# N! h& q, ethe alternatives considered as part of the Milestone I decision process. ) X8 Q' N: @3 OUpgrades are part of the Milestone 0 decision process. Major System A combination of elements that will function together to produce the capabilities / s3 t+ Q4 u( s) T. `required to fulfill a mission need, including hardware, equipment, software, or any combination thereof, but excluding construction or other improvements to real property. A system shall be considered a major system if it is estimated by the ) \' ` w1 A. f; z7 H2 ` T6 @+ CUnder Secretary of Defense for Acquisition and Technology to require: 0 |4 w& ^: [0 N: I* x1. An eventual total expenditure for research, development, test, and evaluation of more than $75,000,000 in fiscal year 1980 constant dollars 9 M( _# |( J: I5 e" s+ v, p(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 $540,000,000 in fiscal year 4 w" X/ ]) }- p. S: a' ?6 V1990 constant dollars). : T/ R" R0 ?0 ]! A! S0 o* S0 `- WMAM Maintenance Assist Modules. 1 ~' a& b6 A' c3 x; k# G% R* p/ L( oMAMDT Mean Active Maintenance Downtime (ILS term). MDA GLOSSARY, VER. 4.0 M 175 Mandatory ( D9 K) Q1 g# X( S. A/ EAccess Control A means of restricting access to objects based on the sensitivity (as represented % V0 d5 D; F8 u1 {; j, z; mby a label) of the information contained in the objects and the formal 2 N: }2 ?" E- ?3 D8 r+ tauthorization of subjects to access information of such sensitivity. Maneuverable Reentry Vehicle # q. n0 G$ k! C( Z, \5 Y! ~(MARV) A reentry vehicle capable of performing preplanned flight maneuvers during the 4 Z3 o% l+ ~; Wreentry phase. The reentry vehicles deploy fins or other aerodynamic surfaces when they enter the atmosphere, allowing them to turn and dodge rather than fall ballistically. They have no ability to maneuver in space. MANPER Manpower and Personnel ILS term). 5 j+ R% D- A: t5 C; N" f( iManpower Authorizations - Q2 n' S/ h1 y; u& A6 aThe billets in the manpower requirements structure that are planned to be filled. Manpower 9 r" n$ [5 {5 Y* eEstimate Report (MER) An estimate of the number of personnel who will operate, maintain, support, and # A/ T7 X9 \# G, vtrain for the acquisition upon full operational deployment. The Services prepared 2 w9 Q A0 N2 ^6 t- T$ u# d fthe estimates, and the SECDEF submits them to Congress 30 days prior to + c4 C4 C) l- H7 Capproval for EMD or production. 9 N1 \( T1 m% U5 p+ p' L, nManpower, $ q2 ]6 w' g, ^) c0 |. w3 c; h. ^Personnel, 6 h% c- b) v6 q7 ^+ W& i6 ^Training, and * l+ l4 n/ @1 w) H+ D" JSafety (MPTS) The human dimension of the complete defense weapon system. The term MPTS also encompasses the concepts and disciplines of human factors engineering and health hazard prevention. Manpower, Personnel, Training, and Safety (MPTS) , x0 K( }" }- _Profiles ) D4 n+ K$ w2 E& p% x' c5 |A description of human dimensions and constraints involving a major system throughout 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. 4 X* z+ p- L. f8 ~- ?. r5 ?. v) qMANPRINT Manpower and Personnel Integration (US Army). , E2 {( \6 U8 W A% i5 LMANTECH Manufacturing Technology. Manufacturing (or Production) 8 P1 o7 m$ ~ sEngineering # a, V* M9 t1 u! ?9 mPre-production planning and operation analysis applied to specific product designs. The functions of planning, specifying, and coordinating the application of required factory resources including: performing analyses of production 4 p( N4 }8 g) U }: S/ C q6 c5 uoperations, processes, and systems; applying new manufacturing methods, : L+ U! B, C- c' Jtooling, and equipment; controlling the introduction of engineering changes, and 8 w4 t; M, j4 r9 V# W' Y: y2 Uemploying cost control and quality techniques from the factory viewpoint. Manufacturing Operations, + e5 C R1 r2 T! j+ v2 C+ Q) C$ wDevelopment, ! R+ F4 e# ]' m- n6 E R* T% Xand Integration Laboratory (MODIL) An SDS-peculiar integration mechanism to link product technology development concurrently with manufacturing process and control development for a costreducing effective SDS development. ( X4 x- d3 a+ EManufacturing Technology (MANTECH) . Y* B3 H( a9 ~3 N! }# iManufacturing technology refers to any action which has as its objective the timely establishment or improvement of the manufacturing processes, techniques, or equipment required to support current and projected programs, * T9 ]" ?5 ~3 y3 t) B- Cand the assurance of the ability to produce, reduce lead time, ensure economic availability of end items, reduce costs, increase efficiency, improve reliability, or to 3 M. B Q* R2 O, Henhance safety and anti-pollution measures. MANTECH, per se, is the specific # @* s' V! b' _, B2 x, |; i* A3 u6 hDoD program in this area. MDA GLOSSARY, VER. 4.0 M 176 5 w! J8 Y% M* `8 |0 ]6 U# G8 F* ?MAOC Modular Air Operations Center (JFACC term). MAOPR Minimum Acceptable Operational Performance Requirements. MAP Minimum Acquisition Program. * U! K# D9 I5 `) s6 r0 QMAR Monthly Assessment Report (BMDO/POC term). : x: L) O+ K( J0 x0 DMARCO Marine Corps.

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Marine Air Command and Control System * {2 F& A: j+ bA 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 other 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. : D* \! h" c6 ]' K# j7 `MARS Multi-warfare Assessment and Research System. , N9 \& N( x# [' BMARSYSCOM US Marine Corps Systems Command, Quantico, VA ' X. L7 I3 E p. |& NMARV Maneuverable Reentry Vehicle. MARVIS Mid-Apogee Reentry Vehicle Intercept System. MAS Mutual Assured Survival. 3 Z x# z0 x4 t$ @MASINT 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. MAST Measurement and Simulation Technology-formerly Synthetic Scene Generation Model (SSGM). ; r0 B U3 I7 [2 U( r$ `, GMatching $ c4 h1 L0 \# l) A RBallistic Reentry Vehicle (MBRV) Four reentry vehicle designs (MBRV 1-4) developed to serve as threat 4 v W+ p1 w; E, P- rrepresentative theater targets. Matching Target 7 O7 x5 Z) i6 y8 ^Reentry Vehicle ! x+ C4 ?4 N; }+ V, c(MTRV) # z$ f$ E3 c" tThreat representative reentry vehicle developed for GMD Program by Sandia 2 X; w2 n6 t0 Y4 n( |Labs. Planned for use on IFT 9-14. 4 c% G% q0 u& I1 a- d( \5 \4 ^4 pMaterial Fielding Plan Plan to ensure smooth transition of system from developer to user. 9 n: r" X- |/ G% E9 YMaterials Science ) j( Y% i0 J2 T. Q2 rThe 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 ; A% m% A6 v: [ R1 Radvanced materials in the design of new SDS components and end items. MATHSFA Manufacturing and Testing of LWIR Hardened Seeker FPA Assemblies. . a- C5 d% O9 k9 DMDA GLOSSARY, VER. 4.0 M . v+ a* ?, _: U5 f% c; u. q177 , [/ Z/ R& K& f0 @Matra BAE Dynamics 1 O9 r8 v$ Q% h! H' K& v: _& BEuropean missile manufacturer formed in 1996 from British Aerospace Dynamics 9 \) \9 z% M" Dand Matra of France. ! _! U4 ?' J t' k: |# RMATT 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 / d* X$ @+ _/ X; f$ }& c R( V' f; N8 EMaximum attrition is employed in a target-rich environment to destroy the maximum number of RVs, regardless of the type, by using all available or allocated interceptors. This option may not satisfactorily defend specific or $ s0 @+ s0 ~+ n M( @: y+ J, ]0 Wrequired assets. ! l4 N7 E: V& gMB Megabyte. [, |" s7 Y! G/ pMBA Multi-Beam Antenna. * c2 }' o6 \2 `* _( hMBE Molecular Beam Epitaxy. 8 @2 k$ v4 R8 C: BMBFR Mutual and Balanced Force Reduction. Mbps Megabits per second. MBRV Maneuvering Ballistic Reentry Vehicle. MC (1) Mission Control. (2) See Midcourse phase. (3) Mission Capable (ILS 8 C& \' k6 J! t! Yterm). (4) Military Committee. MCA Micro Channel Architecture (TelComm/Computer term). ( Q. f% Q5 ^! f" }9 }MCAS Marine Corps Air Station. / z- F( e& M+ S0 XMCASS MTACCS Common Application Support Software. 4 ^, ]6 F7 c1 I$ BMCBM Midcourse Battle Manager. 3 D6 u L4 x$ h3 F6 X; ~! dMCC Mission Control Complex/Center/Console. MCCC Mobile Consolidated Command Center. & `; u' x5 z* ^& e& zMCCDC Marine Corps Combat Development Center. MCCR Mission Critical Computer Resources. 7 H# y6 n; i0 @: v$ CMCE Mission Control Element. MCG Midcourse Guidance. MCI Midcourse Interceptor. 8 h8 |' b0 V! |2 G/ [) f$ cMCLOR Marine Corps LORA Model (USMC ILS term). " x; ?) `; q+ j! [MCM Multi-Chip Module. MDA GLOSSARY, VER. 4.0 M 2 Y1 l: L9 s+ J- M. B/ Z178 . [/ A3 p M0 H3 z4 KMCOTEA Marine Corps Operational Test and Evaluation [Command]. , t w( i. y8 m4 R* d" ~. J7 y UMCP (1) Materiel Change Package (US Army term). (2) Military Construction Program. ' k/ n2 N3 \8 i& u+ m! QMCPDM Marine Corps Program Decision Making. MCRDAC Marine Corps Research, Development & Acquisition Command. 5 f/ {! r& ~% K, \& f! p' iMCS (1) Maneuver Control System. (2) Midcourse Sensor. . g6 w" C# j' y* m9 \6 aMCSS (1) Midcourse Surveillance System. (2) Military Communications Satellite System. 3 @2 J3 l9 f/ \- WMCT Mercury Cadmium Telluride (cf. HgCdTe). MCTE Mission, Course of Action, Task, and Element Control Directives. 1 p+ U* ]* c* ]# Y9 b( q* oMCTL Militarily Critical Technologies List. MCTR Missile Control Technology Regime. MCV Mission Capable Vehicle. MD Missile Defense. % \, U% I) I% s# i% w: c" XMDA (1) Missile Defense Agency. (2) Missile Defense Act. (3) Milestone Decision Authority. (4) McDonnell-Douglas Aerospace. MDAHWG Missile Defense Ad Hoc Working Group. 4 z7 B& f6 n; C) K! D$ w7 p8 ~9 n2 ZMDAP Major Defense Acquisition Program. $ A: ?) L" U$ tMDART Missile Defense Activities Review Team. MDBIC Missile Defense Barrel Integration Center. MDC Midcourse Data Center, Advanced Research Center, Huntsville, AL. * ~; c& d, `0 r0 |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). 4 A( x' ^6 a5 }( ]8 N(2) Milestone Decision Review. (3) Multi-national Defense Research. MDSC Missile Defense Scientific and Technical Information Center. $ p3 b9 o" J1 i# K. mMDSTC Missile Defense and Space Technology Center. MDT Maintenance Down Time. MDTD Mean Downtime Documentation (ILS term). % |! r0 r' F$ r9 n6 v! `MDTOA Mean Downtime for Outside Assistance (ILS term). MDA GLOSSARY, VER. 4.0 M , t1 |3 Q$ O# j0 m179 - ^! L/ s6 {' S. S, {: xMDTOR Mean Downtime for Other Reasons (ILS term). + b3 _( q7 L- B0 c& G$ aMDTT Mean Downtime for Training (ILS term). MDW Mass Destruction Weapons. ; e" I5 |1 s, rME/VA Mission Essential/Vulnerable Area MEA Mission Effectiveness Analysis (JFACC term). MEADS See Medium Extended Air Defense System. + m3 \' l8 O3 i4 j* a1 NMean Time : F2 [6 W/ J- t" B$ u$ MBetween Failures (MTBF) A measure of the reliability of an item. Defined as the total functioning life of an " m* J. g+ B0 X3 b. F6 ?, ~/ K+ n1 litem divided by the total number of failures within the population during the measurement interval. The definition holds for time, rounds, miles, events, or 9 ?, N+ |" Z3 C$ }% ?/ J7 Wother measures of unit life. MTBF is a basic measure of reliability. Mean Time To 4 ]" `9 y9 k; o2 H/ }* QRepair (MTTR) ; c" p& B0 U( A" r2 hThe total elapsed time for corrective maintenance divided by the total number of 1 v7 m9 ]- r+ s: pcorrective maintenance actions during a given period of time. A basic measure 7 l" \' j2 h6 S( q3 [of maintainability. ( w( V5 k& y$ ~9 b. `) CMean Time to Restore System (MTTRS) A measure of the system maintainability parameter related to availability and ) e% J4 F6 L' o& z6 d; [3 i/ Xreadiness. The total corrective maintenance time associated with downing , y7 u' w9 Z$ |0 a- tevents, divided by the total number of downing events, during a stated period of ) p" U& @4 p7 S& c7 {6 `& mtime. (Excludes time for off-system maintenance and repair of detached components.) MEASAT Malaysia East Asia Satellite. - X3 T9 l7 S9 `' @3 X( D GMeasure of 3 e* A: W( H3 j% [( s5 i" jEffectiveness (MOE) 4 d2 t ~: I4 ?0 s5 M% BThe quantitative expression (sometimes modified by subjective judgment) of the 7 L% Q8 i6 e7 Z; r8 ssuccess of a system in achieving a specified objective. MEC Mission Essentially Code (ILS term). Medium Earth Orbit (MEO) Space vehicles characterized by orbits between 400 and 10,000 nautical miles, longer duration revolution (2 to 12 hours), longer visibility envelopes (10 minutes * S" P: E8 n, L4 C* B* B$ S3 b* Lup to approximately 1 hour), and generally longer lifetimes. This region contains the Van Allen radiation belts where electronic components need special protection. ! _3 d: H" X9 M* F9 o7 j. zMedium Extended Air * E% _ Y9 m; j3 ODefense System % C3 B0 l8 `+ T; E(MEADS) ) }+ t* E: Y: k$ n- hA lightweight, highly transportable, low-to-medium altitude air defense and , n& }# q0 i# X% @* l6 _theater missile defense system designed to protect critical fixed and 4 L. W8 b* ]' F4 U4 y: Y; Xmaneuverable corps assets. MEADS superseded the Corps SAM program in 1995. Medium Power Lasers Lasers that radiate power less than 1 MW, normally used to detect, identify, track, and designate a target vehicle. Medium Range + @$ H) g) G# E, x4 DBallistic Missile : o) A9 V" X& o9 _% c(MRBM) A ballistic missile with a range from about 600 to 1,500 nautical miles. - i, C) `. J" rMedium & W' O9 h- p2 N% X. i# F. VWavelength * t. V# M4 G5 c. v' s& ?9 mInfrared (MWIR) Thermal radiation emitted by a source in the electromagnetic spectrum encompassing infrared wavelengths of 3 to 6 microns. 0 z |; S& T: J- SMDA GLOSSARY, VER. 4.0 M % `7 f2 T( u- u7 M180 + e# f2 x( b. Y8 XMEF Marine Expeditionary Force. MEILSR Minimum Essential ILS Requirements (NSA term). MEL (1) Maintenance Expenditure Limit. (2) Mobile Erector Launcher. MEM (1) Mission Effectiveness Model. (2) Mission Equipment Modernization. ! ~6 ^. v/ J# z- i( V2 xMemorandum of 3 w9 [2 r2 f7 U9 I) c1 m, jAgreement (MOA) 4 ^" T4 M' E9 M9 G" Q. j(1) In contract administration, an agreement between a program manager and a Contract Administration Office, establishing the scope of : ? c- c9 E+ ^6 h% presponsibility of the Contract Administration Office with respect to the cost and schedule surveillance functions and objectives, and/or other & B5 v6 `7 \' I# Hcontract administration functions on a specific contract or program. 9 D: V* l# s. A V3 G0 H(2) Any written agreement in principle as to how a program will be administered. Memorandum of 7 M" I$ `) ]0 E& o: a. v: Q3 S. NUnderstanding (MOU) % H! e4 k! `2 M1 e4 fOfficial agreements concluded between the NATO countries' defense ministries 0 f8 Y2 [! [* [+ O" C% |but ranking below government level international treaties. De facto, all partners 2 [4 b0 b1 O; pgenerally recognize such agreements as binding even if no legal claim could be 1 N0 _: t$ U+ ]' [2 [based on the rights and obligations laid down in them. MEO Medium Earth Orbit. MER Manpower Estimate Report. Mercury c& m+ G, \( e4 hCadmium Telluride (HCT) Infrared sensing material. MES Military Essential Support.

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MESAR Multifunction Electronically Scanned Adaptive Radar (UK). MESFET Metal Schottky-Gate Field Effect Transistor. Mesosphere The portion of the atmosphere from about 30 to 80 kilometers above the earth. Methods + E, s: G D1 |! ~5 MEngineering The technique that subjects each operation of a given piece of work to close 6 U \ U* M; X3 i* t) E% ?. ^analysis to eliminate every unnecessary element or operation and to approach $ a) Y4 ?/ {! E) Fthe quickest and best method of performing each necessary element or operation. It includes the improvement and standardization of methods, / A" v. n1 [( V0 bequipment, and working conditions; operator training; the determination of standard times; and occasionally devising and administering various incentive plans. METO Minimum Effort Task Order. METOIA Minimum Effort Task Order Impact Assessment. ! T7 d: v, o0 }6 q% a% v; h9 U1 mMETOP Minimum Effort Task Order Plan. / Q" ]$ m( ?% t' lMETOR Minimum Effort Task Order Requirement. + }8 K/ N& {# T- J; YMetric (Software). An indicator, which measures some specific attribute of the software 2 s9 n7 V0 x$ w/ U7 e& j5 ?development process. + u5 r+ l1 p9 t r9 OMDA GLOSSARY, VER. 4.0 M 181 + G' D/ z, t' rMetrology The science of measurement, including the development of measurement standards and systems for absolute and relative measurement. Used to determine conformance to technical requirements including the development of standards and systems for absolute and relative measurements. ! U6 L# }; D* e& p4 x$ _# cMeV Million Electron Volts. MEZ Missile Engagement Zone. - h; f5 |5 d$ Z; i! xMFAR Modular Multifunction Phased Array Radar. MFEL Medical Free Electron Laser. ) ~6 F6 d% r9 `. B1 ~; N5 e" lMFG Master Frequency Generator. 0 `& C+ ?- E/ f! q: _2 sMFL Multiple Folded Ladar. , W: `* l8 S, g0 v7 J4 B6 JMFLOPS Million Floating Point Operations Per Second. MFP Major Force Program. MFR Memorandum For Record. 1 Z: }/ i' c M3 [0 ^; ]8 @$ HMFS MFS Communications Company, Incorporated. MFSIM Multifunction Simulation (PATRIOT), Huntsville, AL. MGEP Mobile Ground Entry Point. MGLI Midcourse Ground Launched Interceptor. MGMT Management. . q" X2 D0 F: m& Z( [MGTS Mobile Ground Telemetry Station. MHD Magneto-Hydro-Dynamic. ; h N' Q# a# e9 W+ Q' c' g& xMHE (1) Material Handling Equipment. (2) Mobile Hauling Equipment. MHV Miniature Homing Vehicle. ^$ j$ K5 G9 I/ kmi Statue mile (5,280 feet). ( G$ W" S- s- F$ jMIC Management Information Center (MDA). . u7 H' ~- A6 rMICOM U.S. Army Missile Command, Redstone Arsenal, AL. MIDAS Missile Defense Alarm System (US). 3 u1 V/ r" W1 F& l' n! z! R" DMid-Course * V% M# r/ t: y( F' RDefense Segment B& x/ |8 x4 _- j, V& z* H(MDS) The portion of the BMDS that defeats ballistic missiles during the period of flight between boost and atmospheric reentry. ' w2 b0 D3 A9 ^( v9 I2 ^$ uMidcourse * N/ U+ n- U3 I4 f$ s0 LGuidance The guidance applied to a missile between termination of the boost phase and the start of the terminal phase of flight. 5 X' ~# o9 O5 ~2 `MDA GLOSSARY, VER. 4.0 M 8 n$ J% Z* U7 ?' V# J- V# X182 Midcourse (MC) - K: P, w9 Y, C' }& h& N$ r6 {Phase That portion of a ballistic missile's trajectory between the boost phase and the $ T1 p% f4 l' Q% Z! |$ W/ t" E6 @- Greentry phase when reentry vehicles and penaids travel at ballistic trajectories above the atmosphere. During this phase, a missile releases its warheads and ; @& j0 u `) h$ s- Z! l0 ]decoys and is no longer a single object, but rather a swarm of RVs and penaids falling freely along present trajectories in space. 5 M' x+ `9 H( [& w eMidcourse Space Experiment - \# x7 [# C( i' X+ w(MSX) Designed to provide demonstrations of midcourse acquisition and tracking from " J( A: ~5 X) _. D0 c" ^& L& Xspace, technology integration of optics, focal plane arrays, signal processing, etc., and collect background phenomenology measurements and target 6 b0 M: S7 O; M, L) Nsignature measurements. Midgetman US ICBM. % ?; ?' s, n0 ?1 ]3 {" G3 QMIDI Musical Instrument Digital Interface. ( h! z) B; M m+ T/ iMIDS Multi-Functional Information System (USN/NATO/Telecomm term). MIIRD Mission Issue Identification and Resolution Document. MIJI Meaconing, Intrusion, Jamming, and Interference. 6 N ?, v+ `, `0 {7 {2 FMIL Man-in-the-Loop. MIL-HDBK Military Handbook. " q+ X% O, X0 M5 l0 k: cMIL-STD Military Standard. ( H O3 Z7 d9 F4 R% fMILCON Military Construction. ) |7 s, t4 X+ @% P ~, sMilestone Decision Authority The 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. # z5 V" R4 \/ D" ^/ y. j, N" }Milestones (MS) Major decision points that separate the phases of an acquisition program. Military Capability * ^: ? }! V, Z& t) ]3 fThe ability to achieve a specified wartime objective (win a war or battle, destroy a target set). It includes four major components: a). Force Structure -- Numbers, size and composition of the units that compromise our Defense forces; b) Modernization -- Technical sophistication of forces, units, weapon systems, and equipment; c) Readiness -- The ability of forces, units, weapon systems, or equipment to deliver the outputs for which they were designed; d) Sustainability -- The ability to maintain the necessary level and duration of operational activity 5 M+ h7 W, R% e% Yto achieve military objectives. Sustainability is a function of providing for and maintaining those levels of ready forces, materiel, and consumables necessary 8 }$ ]- @* p4 @' |9 o0 k0 G2 q8 Y) J9 ^7 tto support military effort.