An aircraft system which provides head-up guidance to the pilot during flight. It includes the display element, sensors, computers and power supplies, indications and controls. It may receive inputs from an airborne navigation system or flight guidance system.
Generally the HUD provides navigation and air data (airspeed in relation to approach reference speed, altitude, left/right and [...]
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Posted in Abbreviations and Acronyms, Aircraft Navigation Terms, Avionics Terms | Tagged Avionics
The Digital Flight Data Acquisition Unit (DFDAU) provides a means of gathering, conditioning, and converting flight data parameters to digital data.
The acquired information, both digital and analog, is output to the mandatory Flight Data Recorder in accordance with requirements of regulatory agencies.
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Posted in Abbreviations and Acronyms, Avionics Terms
Transponder Codes are one of 4,096 four-digit discrete codes ATC assigns to distinguish between aircraft.
Emergency Transponder Codes are set by pilots as follows:
Code 7500 (hijack code)
Code 7600 (loss of radio communications code)
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Posted in Aircraft Navigation Terms, Avionics Terms | Tagged FAA Pilot's Handbook
CDI – Course Deviation Indicator
A Navigation Instrument that indicates the course and direction to a tuned VOR station
It consists of (1) omnibearing selector (OBS) sometimes referred to as the course selector, (2) a CDI needle (Left-Right Needle), and (3) a TO/FROM indicator. The course selector is an azimuth dial that can be rotated to select a [...]
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Posted in Avionics Terms | Tagged FAA Pilot's Handbook
Electronic Flight Directors display cues to guide pilot or autopilot control inputs along a selected and computed flight path. The Flight Director receives inputs such as altitude, airspeed heading data and temperature data. The Flight Director receives information from an Air Data Computer and a flight data computer
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Posted in Avionics Terms, Video | Tagged Aircraft, Avionics, Navigation
Kollsman Window – Altimeter – Paul Kollsman invented the first accurate Barometric Altimeter wiith an accuracy of a few feet. Prior to Kollsman’s invention, altimeters could only determine an airplane’s altitude within a few hundred feet. Kollsman’s invention was used on the first “Blind Flight” conducted by James “Jimmy” Doolittle proving the ability to fly using only instruments.
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Posted in Avionics Terms, Video | Tagged Altimeter, Avionics, FAA Pilot's Handbook, Navigation, Systems
Cone of confusion
The Cone of Confusion is a cone-shaped volume of airspace directly above a VOR station where no signal is received, causing the CDI to fluctuate.
VOR Cone-of-confusion indications:
(1) Size of a VOR cone is negligible, meaning that station passage can be used as a recognizable fix?
(2) HSI VOR bearing pointer will be removed when within [...]
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Posted in Aircraft Navigation Terms, Avionics Terms | Tagged Aviation Error, Avionics, FAA Pilot's Handbook, Navigation
Traffic Alert and Collision Avoidance System – TCAS -An onboard system that detects the presence of some aircraft operating in the vicinity of the airplane by querying the transponders of nearby aircraft and presenting their locations and relative altitudes on a display. Alerts and warnings are issued when nearby aircraft are deemed to be a [...]
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Posted in Aircraft Navigation Terms, Avionics Terms | Tagged Aircraft, Avionics, Navigation
VNAV – Vertical Navigation – Aviation Term – Abbreviation / Acronym
Vertical NAVigation in aviation is a function of autopilot which directs vertical movement of aircraft either according to pre-programmed FMS flight plan during cruise or according to ILS glideslope during approach.
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Posted in Abbreviations and Acronyms, Aircraft Navigation Terms, Avionics Terms | Tagged Abbreviation, Acronym, autopilot, Avionics, Navigation
RNAV – Area Navigation – Aviation Term – Abbreviation / Acronym
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Posted in Abbreviations and Acronyms, Aircraft Navigation Terms, Avionics Terms | Tagged Abbreviation, Acronym, Avionics, Navigation
