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Aero 9B nose turret from the Neptune at the National Naval Aviation Museum, Florida, 2007.Mostly the one foot longer Aero 9C turret was installed. Before the P-3 Orion arrived in the mid-1960s, the Neptune was the primary U.S. land-based anti-submarine patrol aircraft, intended to be operated as the hunter of a '"Hunter-Killer" group, with destroyers employed as killers.
The transponder gets its altitude information from an encoding altimeter mounted behind the instrument panel that communicates via the Gillham code. Gillham code is a zero-padded 12-bit binary code using a parallel nine- [ 1 ] to eleven-wire interface , [ 2 ] the Gillham interface , that is used to transmit uncorrected barometric altitude ...
Avia-gorizont Istrebitel'nyy – artificial horizon for fighter aircraft [4] AGK - artificial horizon0 [1] AIP - optical bombsight [5] AIS - astro-inertial navigation system [2] AP 1. - directional Gyro [6] 2. - autopilots [3] pre1960 APD - secure digital data-links [3] APM - magnetic anomaly detectors [3] MAD APP
The late 1960s saw the introduction of digital air data computers. In 1967, Garrett AiResearch's ILAAS air data computer was the first all-digital unit. [12] The DC-10 used Honeywell's digital air data system in 1969 [13] and the F-14 CADC used on the F-14 in 1970 used custom integrated circuits.
It is designed to read zero at sea level in the vicinity of the aerodrome, unlike QNH which will not read precisely zero at sea-level. [2] Related to the altimeter settings are: TA [3] - Transition Altitude - altitude at which the pilot changes the aircraft's altimeter setting (usually from QNH) to standard pressure (1013.25 hPa)
The most common unit of measurement used for altimeter calibration worldwide is hectopascals (hPa), except for North America (other than Canada [3]) and Japan where inches of mercury (inHg) are used. [4] To obtain an accurate altitude reading in either feet or meters, the local barometric pressure must be calibrated correctly using the ...
The pressure altimeter, also known as the barometric altimeter, is used to determine changes in air pressure that occur as the aircraft's altitude changes. [5] Pressure altimeters must be calibrated prior to flight to register the pressure as an altitude above sea level.
The Goodyear Aircraft Corporation ATRAN (Automatic Terrain Recognition And Navigation) system for the MGM-13 Mace was the earliest known TERCOM system. In August 1952, Air Materiel Command initiated the mating of the Goodyear ATRAN with the MGM-1 Matador.