曝光台 注意防骗
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connect with sufficient weapons and sensors to conduct an engagement and (2)
an operations center has loss of connectivity with another operations center with
which it normally shares data, but can still conduct an engagement.
Endgame FOV The field of view of the interceptor’s sensor during its final maneuvers after target
acquisition to intercept the target. May be less than the acquisition FOV.
End Item The final production product when assembled, or completed, and ready for
issue/deployment.
MDA GLOSSARY, VER. 4.0 E
94
Endoatmospheric Within the earth’s atmosphere; generally considered to be altitudes below 100
km. An endoatmospheric interceptor reaches its target within the atmosphere.
Endo-
Exoatmospheric
Interceptor (E2I)
A ground-based interceptor capable of engaging RVs either endoatmospheric or
exoatmospheric. (Successor to High Endoatmospheric Defense Interceptor
(HEDI).)
ENDOSIM Endoatmospheric Simulation.
Endurance The time an aircraft can continue flying, or a ground vehicle or ship can continue
operating, under specified conditions, e.g. without refueling.
ENG Engineering.
ENGAG’T Engagement.
Engage (1) In air defense, a fire control order used to direct or authorize units and/or
weapon systems to fire on a designated target.
(2) In air intercept, a code meaning, “Attack designated contact.”
Engagement (1) A period of hostilities beginning when the first ballistic missile target
undergoes fire from the first defensive weapon.
(2) A period beginning whenever any hostile object is identified (designated)
as hostile and ending after the last hostile object has been attacked.
(3) In air defense, an attack with guns or air-to-air missiles by an interceptor
aircraft, or the launch of an air defense missile by air defense artillery and
the missile’s subsequent travel to intercept.
Engagement
Authorization
The authorization given to USSPACECOM to use weapon and sensor systems
under previously coordinated and authorized rules, procedures, and conditions.
Engagement
Control
(1) That set of coordination, assessment, decision, and direction functions
normally implemented automatically to execute the selected battle plan,
military strategy and tactics within partitioned battle spaces (i.e., a
spatial/functional subdivision of battle management). Includes the
determination of: what specific objects to intercept in order to implement
the selected military strategy, and which specific interceptors to assign to
each attacker to implement the selected tactics within the rules of
engagement.
(2) In air defense, that degree of control exercised over the operational
functions of an air defense unit that are related to detection,
identification, engagement, and destruction of hostile targets.
Engagement
Planning
A set of rules and parameters to be used in developing weapon-target
assignments and for sensor resource management. (USSPACECOM)
Engagement
Surveillance
The surveillance required to support RV negation in the midcourse tier.
Engagement
Time
The time that a weapon takes while engaging a given target. This includes not
only firing at the target but all other necessary weapon functions involved that
are unique to that particular target.
MDA GLOSSARY, VER. 4.0 E
95
Engineering and
Manufacturing
Development
(EMD)
The third phase in the acquisition process, following Milestone II. The system
and its supporting items are fully developed, engineered, designed, fabricated,
tested, and evaluated. The intended output is a pre-production system that
closely approximates the final product; the documentation necessary to enter the
production phase, and the test results demonstrating that the production product
will meet stated requirements.
Engineering
Change Proposal
(ECP)
A proposal to the responsible authority recommending that a change to an
original item of equipment be considered, and the design or engineering change
be incorporated into the article to modify, add to, delete, or supersede original
parts.
Engineering
Development
A funding category including those development programs being engineered for
service use but which have not yet been approved for procurement or operation.
Money under budget activity 6.4.
Engineering
Development
Model
Enhanced Target
Delivery System
(ETDS)
An advanced prototype used during the Engineering and Manufacturing
Development phase (EMD) to resolve design deficiencies, demonstrate maturing
performance, and develop proposed production specifications and drawings.
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