Direct Air Carrier
A direct air carrier is a person or entity that provides or offers to provide air transportation and who has control over the operational functions performed in providing that transportation.
Direct flight
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Non-Directional Beacon (NDB)
Non-Directional Beacons are depicted on aeronautical charts as a circular band of magenta coloured dots.
Direct operating cost
All costs incurred in operating the aircraft including the cost of ownership.
Dry lease ...
DIRECTION
bearing.
DIRECTIONAL STABILITY
The tendency of an aircraft to keep flying the direction its pointed.
Simplified directional facility (SDF). A NAVAID used for nonprecision instrument approaches.
LATERAL AND DIRECTIONAL STATIC STABILITY AND CONTROL
Introduction :
The aim of this experiment is to determine the lateral and directional control angles required for trim under steady turns and sideslips.
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UHF/VHF Automatic Direction Finding (U/V ADF): An Automatic Direction Finder that determines relative bearing to a transmitter to which it is tuned, in either the UHF band or VHF band.
Air Hogs R/C Helicopter Directions
Air Hog makes a range of radio-controlled toys, among them a series of remote-controlled helicopters.
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Directional Gyro
The directional gyro is mounted to the left of the VSI. It acts like a compass, exhibiting some of the errors that compasses do. The pilot uses the compass to periodically reset the directional gyro.
Dual Tachometer ...
DIRECT FLIGHT: This is a tricky one. The term "direct flight" can actually be applied to any routing that maintains the same flight number throughout the entire course of the routing, ...
directional stability
The tendency of an aircraft to keep flying the direction its pointed
dirty; dirty up
Extension of gear, hook, flaps, etc. for slow speed flight or landing ...
Directional Gyro (DG) A compass that uses a gyro rather than the Earth's magnetic field. It is much more reliable in turns and rough air than a magnetic compass.
Direct Flight: A flight, which may make an intermediate stop or stops before reaching its final destination but requires no change of aircraft.
Direct flights - a flight where the passenger does not need to change planes but the aircraft may stop en-route.
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Direct, indirect and non-stop flights
Of the above, non-stop flights are the quickest and most desirable - A to B, simple.
Direct User Access Terminal (DUAT)
A computer terminal where pilots can directly access meteorologic and aeronautical information, plus file a flight plan without the assistance of an FSS.
Emergency ...
DIRECTIONAL GYRO - A panel instrument providing a gyroscopic reading of an aircraft's compass heading.
DIRIGIBLE - A lighter-than-air craft capable of being propelled and steered for controlled flight. Latin: dirigo,to steer.
Direction Finder (DF, VDF, UVD): A radio receiver equipped with a directional sensing antenna used to take bearings on a radio transmitter.
Displaced Threshold: A threshold that is located at a point on the runway other than the beginning.
Directional gyro. More properly called Direction Indicator. An instrument to indicate any change in the direction of an aeroplane. Deviation from a straight course is shown by marks along a graduated card kept at a fixed datum by a gyroscope.
Direct Flight
A flight with one or more intermediate stops, but no change of aircraft.
Direct.
Towards a point along the shortest distance; Compare: course
Direction.
bearing.
Bi-directional Fiberglass
In this glass, the major fibers run in two directions, both the warp and the fill. In other words, instead of using threads as a fill, glass fibers are used. Thus we have glass fibers in both 0 degrees and 90 degrees.
Non-directional Beacon (NDB) - A beacon transmitting non-directional signals whereby the pilot of an aircraft equipped with direction finding equipment can determine the bearing to and from the station.
wind direction - The direction from which the wind is blowing. For example, an easterly wind is blowing from the east, not toward the east.
DUAT (Direct User Access Terminal) — Permits pilots with a personal computer to obtain preflight weather data and file flight plans. Toll-free service available to all pilots with a current medical certificate.
Fig 7 Direction of air movement around a wing as seen by an observer on the ground.
Loss of Directional Control Landing
A loss of directional control landing is most often encountered in one of two situations, ...
Directional Control.-We have now followed the development by the Wrights of airplane control as regards: 1. Fore and aft or "pitching" motion, accom plished by an elevator operated by lever. 2.
Direct only?
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Directive call to add a specific (system) or (EOB category) to search responsibility.
ADF
Attitude Director lndicator ...
directional control valve
DDRMI
digital distance and radio magnetic indicator ...
Direct Access
Refers to a travel agent's ability to get directly into an airlines database to get true last-seat availability and correct pricing - a big difference between internet fare " quoters " and an agent's CRS ( Computer Reservations System ) ...
Direct Flight
Flight not requiring a passenger to change planes, though it may make stops.
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Direct C, American six-seven.
American 67 now turns towards C. The two aircraft are about 55 miles apart at this time.
direction
Table 14.2: Relative Velocities
Figure 14.3: Wind Triangle + Headwind and Crosswind ...
directional infrared countermeasures - A system produced by Northrop Grumman to protect aircraft from MANPADS missiles.
As Director of the Musée de l'air et de l'espace, General Pierre Lissarrague supervised restoration work on the plane. He began by carrying out a critical study of the countless technical notes in Clément Ader's workshop notebooks.
The direction of flight is at an angle to the fore aft axis of the aircraft.
Side Thrust
Offsetting the propeller thrust line, so there is a slight sideways pull.
Non-directional beacon
NOTAM
Notice to airmen (advising status of airspace, navigations aid, hazards etc) ...
Has a direct effect on air density and thus climb performance. At any altitude where OAT is higher than standard ISA temperature climb performance will be reduced. If QNH is lower than ISA then aircraft climb performance is affected too.
You are directly over Kensington Gardens, at very low altitude. The swath of water is called The Serpentine. It's actually an artificial lake, on the other side of which is Hyde Park.
DG: Directional Gyro; a gyroscopic compass that's better than the 'real' magnetic one for several reasons I'm not going to get into here. Unfortunately, it tends to drift with time, so it must be regularly be reset to match the magnetic one.
DCT: Direct
Dead-heading: See Repositioning.
Density altitude: pressure altitude (as indicated by the altimeter) corrected for air temperature.
DH: Decision Height.
DF - direction indicator. A gyro instrument which indicates the magnetic heading of an aircraft.
Attitude Direction Indicator
aerodynamics
The physics of the movement of objects through air or gas ...
WAC CHART - Directions to the WAC barracks.
YANKEE - Any pilot who has to ask New Orleans tower to "Say again".
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Turn-by-turn directions on an airport. A pilot unfamiliar to a field that has a tower can request these directions.
Restricted Airspace ...
AIRWORTHINESS DIRECTIVE (AD) Notification to aircraft owner/operators of a known safety issue with a particular model of aircraft, engine, avionics or other system. ADs in the U.S.
Heading - The direction in which the aircraft is pointing
Heavy - An aircraft that is capable of a takeoff weight of 300,000 lbs or more
HF - High Frequency - radio spectrum located between 3 and 30 MHz
- I - ...
RDF - Radio direction finding; using the transmission from two or more stations to fix position of an aircraft by its bearing in relation to each.
RFC - Royal Flying Corps.
ADF: automatic direction finding equipment.
AFIS(O): Aerodrome Flight Information Service (Officer).
AFS: Aerodrome Fire Service.
D.G.C.A. - Director General of Civil Aviation
F.A.A. - Federal Aviation Administration
C.A.A. - Civil Aviation Administration ...
AIRWORTHINESS DIRECTIVE
A regulation issued by an aviation authority, usually to correct a fault on aircraft.
AOG
Abbreviation aircraft on ground.
LOCALIZER-TYPE DIRECTIONAL AID (LDA) - A navigational aid used for nonprecision instrument approaches with utility and accuracy comparable to a localizer; however, ...
Controlled Interception: Aircraft directed to the target by air or ground station radio communication and/or radar.
Control Tower: Airfield facility for controlling air and ground traffic.
CONUS: Continental United States ...
Navigation, Instruments, and Avionics ADF Automatic Direction Finder - an instrument in an airplane which displays the relative bearing to an NDB (see below) -- it essentially "points at the NDB" AI Attitude Indicator (also known as AH - Artificial ...
Ground Speed - The actual speed that an aircraft travels over the ground that combines the aircraft's powered speed and the wind speed relative to the aircraft's direction of flight.
 See also: Flight, Aircraft, Aviation, Pilot, Power
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