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Most likely they chose "E" because Dalton's previously combined time and wind computer had been the E-1. The "B" simply meant it was the production model. The designation "E-6B" was officially marked on the device only for a couple of years. By 1943 the Army and Navy changed the marking to their joint standard, the AN-C-74 (Army/Navy Computer 74).
In the air, the flight computer can be used to calculate ground speed, estimated fuel burn and updated estimated time of arrival. The back is designed for wind correction calculations, i.e., determining how much the wind is affecting one's speed and course. One of the most useful parts of the E6B, is the technique of finding distance over time.
The Boeing E-4 Advanced Airborne Command Post (AACP), the current "Nightwatch" aircraft, [2] is a series of strategic command and control military aircraft operated by the United States Air Force (USAF). The E-4 series are specially modified from the Boeing 747-200B for the National Emergency Airborne Command Post (NEACP) program. [3]
RW-400 real-time data processing computer: TRW Inc. [121] AN/FSQ-31: Command, control, and coordination system (CCCS), part of the Strategic Automated Command and Control System (SACCS) Strategic Air Command: IBM: AN/FSQ-32: Semi-Automatic Ground Environment (SAGE) solid state Computer
Used informally within the U.S. military bureaucracy to variously designate the "Implementation Day" or the (Delivery Order) "Issuance Day". J-Day Used during both World Wars [4] to designate the day an assault occurred. K-Day The unnamed day on which a convoy system is introduced or is due to be introduced on any particular convoy lane. (NATO ...
Boeing E-4, a U.S. military flying command post; Fokker E.IV, a 1915 German fighter aircraft; E4, the fourth enlisted rank in the Military of the United States, including: Petty officer third class in the United States Navy and United States Coast Guard; Senior airman in the United States Air Force (Sergeant until 1976)
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Some of the earliest computers were military computers. Military requirements for portability and ruggedness led to some of the earliest transistorized computers, such as the 1958 AN/USQ-17, the 1959 AN/MYK-1 (), the 1960 M18 FADAC, and the 1962 D-17B; the earliest integrated-circuit based computer, the 1964 D-37C; as well as one of the earliest laptop computers, the 1982 Grid Compass.