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Gun data computer : ウィキペディア英語版
Gun data computer

The gun data computer was a series of artillery computers used by the U.S. Army for coastal artillery, field artillery and antiaircraft artillery applications. In antiaircraft applications they were used in conjunction with a director.
==Variations==

* M1: This was used by seacoast artillery for major-caliber seacoast guns. It computed continuous firing data for a battery of two guns that were separated by not more than 1000 feet. It utilised the same type of input data furnished by a range section with the then-current (1940) types of position-finding and fire-control equipment.
* M3: This was used in conjunction with the M9 and M10 directors to compute all required firing data, i.e. azimuth, elevation and fuze time. The computations were made continuously, so that the gun was at all times correctly pointed and the fuze correctly timed for firing at any instant. The computer was mounted in the M13 or M14 director trailer.
* M4: This was identical to the M3 except for some mechanisms and parts which were altered to allow for different ammunition being used.
* M8: This was an electronic computer (using vacuum tube technology) built by Bell Labs and used by coast artillery with medium-caliber guns (up to 8-inches). It made the following corrections: wind, drift, earth's rotation, muzzle velocity, air density, height of site and spot corrections.
* M9: This was identical to the M8 except for some mechanisms and parts which were altered to accommodate anti-aircraft ammunition and guns.
* M10: A ballistics computer, part of the M38 fire control system, for the Skysweeper.
* M13: A ballistics computer for the M48 tank.
* M14: A ballistics computer for the M103 heavy tank.
* M15: A part of the M35 field artillery fire-control system, which included the M1 gunnery officer console and M27 power supply.
* M16: A ballistics computer for the M60A1 tank.
* M18: FADAC (Field Artillery Digital Automatic Computer), an all-transistorized general purpose digital computer〔
Lieutenant Albert R. Milavec.
("On FADAC Maintenance" ).
p. 32 of
"Artillery Trends" May 1968.
"The FADAC is an all-transistorized, stored-program, general purpose digital computer ...
Weighing approximately 200 pounds ...
the FADAC components utilize approximately 1,600 transistors, 9,000 diodes, 6,000 resistors,
500 capacitors, and many other switches, transformers, and neon lamps."
〕 manufactured by Autonetics.〔
("Field Artillery Digital Automatic Computer" ).
p. 254 of
Martin H. Weik.
"A Third Survey of Domestic Electronic Digital Computing Systems".
1961.
〕 FADAC was first fielded in 1960, and was the first semiconductor-based Digital electronics field-artillery computer.
* M19: A ballistics computer for the M60A2 tank.
* M21: A ballistics computer for the M60A3 tank.
* M23: A mortar ballistics computer
* M26: A fire-control computer for the AH-1 Cobra, (AH-1F).
* M31: A mortar ballistics computer.
* M32: A mortar ballistics computer, (handheld).
* M1: A ballistics computer for the M1 Abrams main battle tank

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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