How Did the USS Alabama Navigate?

CENTRAL NAVIGATION COMPUTER (CNC) – The positioning information provided by the CNC supports the submarine’s inertial navigation system. This included:

  • TRANSIT and LORAN-C RECEIVERS for position
  • FREQUENCY STANDARD Atomic clock for timing
  • SONAR for position

 

SHIP’S INERTIAL NAVIGATION SYSTEM – Provides latitude, longitude, heading, speed and ship’s altitude. This included:

  • MARDAN COMPUTER and Typewriter
  • STABLE PLATFORM Including Accelerometers and Gyroscopes
Type: Illustration
Image Date: 2012
Credit: National Air and Space Museum, Smithsonian Institution.
Origin: National Air and Space Museum, Smithsonian Institution.
Creator: Bruce Morser
Innovations
Navigation Methods