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Daisy Chain
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Numerous fighters in-trail maneuvering for shots on one another.
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DBA
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Adjusted (human ear response) Decibels
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DBTC
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Database terrain cueing - A system that provides guidance, cues and warning to help maintain the jet at a set terrain clearance altitude.
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dc, DC
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Direct Current
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DCC
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Dedicated Crew Chief
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DEAD
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Destruction of enemy air defenses
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Deadeye
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Informative call by an airborne laser designator indicating the laser is inoperative.
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DEEC
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Digital Electronic Engine Control
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Defensive (Spike/Missle/Sam/Mud/Aaa)
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Aircraft is in a defensive position and maneuvering with reference to the stated condition. If no condition stated maneuvering is with respect to A/A threat.
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Defensive Maneuvering
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Maneuvers designed to negate the attack/ordnance of a threat.
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Defensive Spiral
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A descending, accelerating dive using high G and continuous roll to negate an attack and gain lateral separation.
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Defensive Turn
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A planned turn designed to prevent an attacker from entering/ remaining in the defender's vulnerable cone. This maneuver has limitations since it may allow arcing; however, done early enough and properly executed, allows defender to keep sight, makes attacker's BFM problem more difficult, and may cause attacker to overshoot.
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DELTA-P
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Differential Pressure Indicator
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Deploy
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Directive for the flight to maneuver to briefed positioning.
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DFLCC
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Digital FLight Control Computer
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DI
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Drag Index
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DIA
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Diameter
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DIFF
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Differential
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Dirty
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Aircraft configured for landing with gear and flaps down.
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Dirty-up
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Lower the aircraft landing gear
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DIS
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Disable
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DISC
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Disconnect
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Disengage
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Discontinue the current attack.
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Divert
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Proceed to alternate mission/base.
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DLZ
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Dynamic launch zone.
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DME
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Distance Measuring Equipment
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Dmpi
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Desired mean point of impact.
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DMT
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Dual Mode Transmitter
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DN
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Down
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Dolly
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Data link equipment
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Dope
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Directive to "delay the engagement."
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Downtown
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From the 1960s song by Petula Clark, meaning any enemy target area where lots of anti-aircraft opposition can be expected. During the Vietnam War, flying missions into the Hanoi-Haiphong complex in North Vietnam, which was defended by multiple SAM and conventional AAA sites, was referred to as “Going Downtown.” Any hazardous mission, “We’re going downtown to Baghdad.”
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DR
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Dead reckoning; navigation technique estimating position based on last known position, heading, speed, and time.
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Drag/Dragging (Direction)
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Bogey/Bandit maneuvering to 60 degress or less aspect.
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DSG RS
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Designate/Return to Search
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DTOS
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Dive Toss
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DTU
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Data Transfer Unit
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Duke It Out
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Meet the enemy head on to engage.
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DVAL
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D-Value
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DWAT
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Descent Warning After Takeoff
