1Dk4eXg

DCO
DCO Duty carried out.
DCOM Distributed-component object model.
DCoS Deputy Chief of Staff.
DCP 1 Distributed communications processor.
2 Display control panel.
3 Data collection and processing, or pack.
4 Defence Capability Plan (Australia).
DCPG Defense Communications Planning Group
(DoD).
DCPS Data collection and processing system.
DCPU Display control power unit (IFF).
DCR 1 Digitally-coded radar.
2 Direct-conversion receiver (radio).
3 Digital-cartridge recording; S adds system.
4 Previously DCRJ, dual-combustion ramjet.
5 Decrease.
6 Design certification review.
DCRD Dynamic-component repair and development
[helicopter and V/STOL].
DCRF Director, or Directorate, for Construction and
Research Facilities (UK, 1935–57).
DCRJ See DCR4.
DCS 1 Deputy Chief of Staff (DCoS) preferred).
2 Defense Communications System (US).
3 Decompression sickness.
4 Double-channel simplex.
5 Departure control system.
6 Double-correlated sampling.
7 Digital or duplex communications system, or suite.
dcs Data collection system.
DCSA Defence Communications [and] Services Agency
(UK).
DCSO Deputy Commander for Space Operations
(USAF).
DCS/R&D Deputy Chief of Staff for Research and
Development.
DCSU Dual crew-station unit.
DCSWI Deputy Chief of Staff for Warfighting
Integration (USAF).
DCT 1 Digital communications terminal.
2 Direct.
dctd Directed.
DCTE Data circuit terminating equipment.
DCTL From DC to light, ie entire usable FM spectrum.
DCTN Defense Commercial Telecommunications
Network, subset of DISN.
Dctr Director.
DCTS Data communications terminal system.
DCTU Digital calibration trim unit.
DCU 1 Digital [engine] control unit.
2 Data concentration, or collection, unit.
3 Gas-turbine deceleration control unit.
DCV 1 Demonstrated crosswind velocity.
2 Directional control valve.
3 Destination-coded vehicle (baggage handling).
DCVR Digital crystal video receiver.
Dcw Crosswind drag component.
DD 1 Direct drive (servo valve).
2 Dewpoint depression.
3 Distress and Diversion.
4 Destroyer ship class (USN).
5 Differential Doppler.
6 Data delivery.
7 Defense display [cockpit].
DDTC
dD Any component of drag; thus dDN could be drag of
a nacelle; -dD is a forward thrust, such as negative drag
of a winglet.
DDA 1 Design-deviation authorization, or authority.
2 Defence Diversification Agency (UK).
3 Digital differential analyser.
4 Distance data adapter.
DDAFCS Dual digital automatic flight-control system.
DDAU Digital-data acquisition unit.
DDB Dynamic database [fusion of input] (Darpa).
DDBS Distributed database system.
DDC 1 Digital display console.
2 Distributed digital computer.
3 Distress and Diversion call.
4 Deducted damage computation.
5 Design and development contract.
DDCA Dual-designated complex architecture.
DDCU Data display and control unit.
DDD, D 3 1 Dynamic data display; S adds subsystem.
2 Detail data display.
3 Dual disk drive.
DDF Double-diaphragm forming.
DDF, DD/F Digital direction-finding.
DDG Guided-missile [-armed] destroyer (USN).
DDI 1 Digital display indicator; C adds control.
2 Data display indicator (Awacs).
3 Direct-dial indicator.
DDL 1 Down datalink.
2 Dummy deck landing; see Addls.
3 Drag due to lift.
DDM 1 Difference in depth of modulation.
2 Distributed data management.
3 Display diagonal measure [corner to corner].
DDMS DoD Manager for Space Shuttle (support)
operations.
DDN Defense data network.
DDNP Diazodinitrophenol.
DDOR Deputy Director of Operational Requirements.
DDP 1 Declaration of Design and Performance [C adds
Certificate], formal statement by manufacturer accompanying
each functioning item or modification, (required by
CAA).
2 Digital data, or Doppler, processor.
DDPE Digital data-processing equipment.
DDPS Digital display, or data, processing system.
DDR 1 Depressed-datum reheat.
2 Draft document review.
DDR&E Director of Defense Research and Engineering
(DoD).
DDRMI DME/VOR radio-magnetic indicator, usually
duplicated and partnered by two ADF/RMIs.
DDS 1 Display and debriefing subsystem.
2 Digital-data set.
3 Data distribution system.
4 Dynamic directional stability.
5 Direct digital synthesizer.
6 Digital debrief[ing] station.
DDT 1 Direct digital targeting.
2 Detail data display.
3 Runway strength for double dual tandem [landing
gear].
4 Downlink data transfer.
DDTC Data-link delivery of [expected] taxi
clearance[s].
186