Operation, Service and Overhaul Instructions With Parts Catalog for Computers in Central-Station Fire-Control System
YEAR: 1944
ITEM: Manual/User's Guide
COMPANY: Army Air Forces
COUNTRY: USA
IN OUR COLLECTION: Yes
MURPH...YOU HAD SEPTEMBER 1 AS THE YEARSTARTED
This publication was intended for technical aid and education of military and civilian personnel engaged in promoting the war effort. This handbook contains Operation Service, and Overhaul Instructions, as well as a Parts Catalog, for the Model 2CH1 Computer used with the Remote-control Turret System designed and manufactured by General Electric Company.
In a computing system, such as the remote-control turret system with this type 2CH computer used on B-29 airplanes, the line of sight was held on the target by the gunner, and the relative position of the guns and the sight is determined by a computer mechanism. The use of the computer eliminated the guesswork on the part of the gunner n estimating range, ballistic, parallax and prediction corrections and leaves him free to concentrate on accurately tracking the target and keeping it aligned in the sight.
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Documents
Documents for this item have not yet been scanned or not yet posted. There are a lot of pages...contact us if you have an immediate need. (Although there are not a lot of "immediate needs" for a 70+ year old computer!)
OUR DEFINITIONS OF RARITY
One of a Kind: Only known existing item.
Exceedingly Rare: Only 2 to 10 known to exist.
Very Rare: Only 11 to 25 are known to exist.
Rare: Only 26 to 50 are known to exist.
Difficult: Difficult to find.
Available:Can be commonly be purchased.
Unknown: We cannot make a determination.
(For comparison: Many people consider the Apple-1 computer to be rare. As of 2025 there are 92 confirmed and probable Apple-1 computers.)
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