1Dk4eXg

documentation
3 Process of manoeuvring airship into its shed after
landing.
documentation 1 In EDP (1), formal standardized
recording of detailed objectives, policies and procedures.
2 Any hard-copy media, such as aircraft servicing
manual, illustrated parts catalogue, repair manual,
servicing diagram manual, cross-servicing guide, aircrew
or flight manual (usually three volumes), flight reference
cards, equipment manuals, servicing cards, and possibly
checklists. In aircraft restoration * is required to authenticate
every part.
DoD Department of Defense (US, from 1947).
Dodac DoD ammunition code.
Dodaf DoD architecture framework.
DODIIS DoD intelligence information system.
DoE 1 Department of the Environment, now DETR
(UK).
2 Department of Energy (US).
3 Design of experiment[s].
DoETR See DETR.
DOF 1 Designated overhaul facility.
2 Date of flight (ICAO).
DoF, DOF Degree[s] of freedom.
DofA Department of Aviation (Australia).
dog 1 Bad individual example of particular aircraft type.
2 Aircraft type all examples of which exhibit bad flying
qualities (both meanings colloq.).
dogbone Bone-shaped tie, eg linking rigid-rotor blade to
hub, or reacting engine thrust on testbed.
dogfight Air-to-air combat at close visual range.
doghouse 1 Fairing for instrumentation, esp. on rocket
(colloq.).
2 Balloon landing which results in basket being overturned.
dogleg 1 Track over several waypoints away from direct
route.
2 Directional turn in space launch trajectory to improve
orbit inclination.
dogship Repeatedly modified developmental prototype
a/c [no reflection on handling qualities].
dogtooth Discontinuity at inboard end of leading-edge
chordwise extension, generating strong vortex.
DOHC Double overhead camshaft.
Dohud Diffractive-, or diffraction-, optics head-up
display.
DOI Descent (or docking) orbit insertion.
Dol Department of Industry (UK, now DTI).
DOL Dispersed operating location.
DOLE Detection of laser emitters.
doll’s eye Cockpit magnetic indicator which when triggered
clicks to a white warning aspect. Increasingly used
to mean blinker.
dolly 1 Airborne data-link equipment.
2 Metal back-up block used in hand riveting or
hammering out dents in sheet.
3 Pneumatic-tyred truck tailored to elevate and grasp
engine, skid-equipped helicopter, radar or other item, and
transport it on ground.
4 Vehicle or trolley equipped with ballmats, rollers [can
be powered] or other interfaces for ULDs. Other names:
pallet transporter or trailer, container trailer or carrier or
even cargo trailer.
5 Each truck in airport baggage train.
dolly roll Dolly with payload carried on two roller-
Doppler beam sharpening
supported rings for rotation to any desired angle to facilitate
inspection and maintenance.
Dolram, DOLRM Detection of laser, radar and
millimetre (millimetric) waves.
DOM 1 Domestic, within US.
2 Director of maintenance.
dome 1 Flight simulator [esp. for combat a/c] with
replica cockpit at centre of hemisphere on which images
projected.
2 Convex pressure bulkhead.
3 Astro*.
dome compartment Space allocated within convex pressure
bulkhead for cargo or other removables.
dome rivet Rivet with deep head, curved top and almost
parallel sides.
domestic Involving one’s own country only.
domestic brief Before combat or training mission,
portion of briefing which allocates aircraft (and explains
where they are parked) and call-signs.
domestic reserves Fuel reserves for scheduled domestic
flight.
domestic service Airline service within one country.
domicile Country in which air carrier is registered.
Domsat Domestic (usually communications) satellite.
donk Aircraft engine[s] or power (colloq. noun or
transative verb).
DO-160 ‘Environmental conditions and test procedures
for airborne equipment’ (RTCA).
DO-178 ‘Software considerations in airborne systems
and equipment certification’ (RTCA).
DO-178B Design and certification procedure for software
[civil aviation]. Level A is most comprehensive,
Level E cheapest. See DO-254. (RTCA).
door bundle Para-dropped load immediately preceding
stick of parachutists.
door-hinge rotor Articulated blades on flapping hinges
visually similar to door hinge.
Doors Dynamic-object oriented requirements system.
DOP 1 Dioctyl phthalate [air-filter measures].
2 Defence and overseas policty (UK).
3 Detailed operation[al] procedure.
4 Dilution of precision.
5 Digital on-board processor.
DoPAA Description of proposed actions and
alternatives.
dope 1 Liquid applied to fabric to tauten it by shrinking,
strengthen it and render it airtight by acting as filler.
Usually compounded from nitrocellulose or cellulose
acetate base, and soluble in thinners.
2 Ingredient added to fuel in small quantities to prevent
premature detonation (colloq.).
doping 1 Treatment of fabric with dope.
2 Addition of impurities to semiconductor to achieve
desired electronic characteristics.
3 To prime piston engine with spray of neat fuel prior
to starting from cold. Hence* pump, usually operated
manually.
doploc Doppler phase lock; active tracking system
which determines satellite orbit by measuring Doppler
shift in radio signals transmitted by satellite.
Doppler Doppler effect.
Doppler beam sharpening As aircraft radar aerial points
anywhere other than dead-ahead, computer breaks each
reading into small pieces and reassembles them as high-
205