Round logo for The Computer Church -- a collection of rare computers and vintage documents that catalog the history of computing
The Computer Church
Home       Visit Us       Contact Us       About Us       Volunteers       Donate       Collection List      

 YEAR: June 22, 1944
 PUBLISHER: Department of the Navy
Click here for further information on our rarity scale RARITY: Not rare Information on the rarity of this item is unknown.

Gun Director Mark 51, Mod. 3 Operator's Manual


The Ordinance Pamphlet 1119 contains descriptive information on the installation, operation and maintenance of the Gun Director Mark 51 Mod. 3. The Mark 51 was a ship gun fire-control systems (GFCS). GFCS are fire-control systems to enable remote and automatic targeting of guns against surface ships, aircraft, and shore targets, with either optical or radar sighting.

The publication of this Operator's Manual was intended for use by personnel responsible for the care and operation of the Gun Director Mark 51 Mod 3. However, the information in this pamphlet was only preliminary, it was intended to be revised as necessary in the final Ordinance Pamphlet.

The Gun Director Mark 51 Mod. 3 was a new model of its previous Gun Director Mark 51 Mod. 2. The Mod. 3 is specifically adapted for use with the Gun Sight Mark 15 Mods. 2 and 3. What was new about the Mod. 3 was that it came with a new dual model air supply pump and Wind Transmitter Mark 4. When the Wind Transmitter Mark 4 and Gun Sight Mark 15 were used with Gun Director Mark 51. Mod 3, they would compute train and elevation wind corrections but would not include rand wind corrections.

Copyright © 2022 by Early Computers Project, All Rights Reserved.

Click on any of the images below to see the slideshow.