Computer manufacturer: Bunker-Ramo.
The first operational satellite navigation system, known as Transit, developed for the US Navy\'s Fleet Ballistic Missile program.
AN/BRN-3, for use in U.S. submarines. This system was deployed in all U.S. strategic (SSBN ballistic missile) submarines and tactical (SSN attack) submarines.NAVIGATION EQUIPMENT. - - Two types of shipboard navigation equipment have been developed, one for submarines and the other for surface ships. The AN/BRN-3 was developed by Westinghouse and is designed specifically for submarine use. It incorporates many features adapted to submarine environment, and certain pieces of interface equipment to permit operation in conjunction with other navigational equipment presently used aboard Fleet Ballistic missile submarines. The AN/BRN-3 is completely automatic in operation. It computes its own alerts of when navigational satellites will be within radio range of the submarine position. It then computes the satellite position for specific intervals during a pass based upon knowledge it already has of the satellite orbit. Using an assumed submarine position it precomputes the expected doppler curve. When the actual doppler curve is received the AN/BRN-3 adjusts and readjusts the assumed position until the closest possible matching of the two curves is achieved. Since the assumed position is supplied by an Inertial or some other high quality positioning system, the curve fitting process takes place almost in real time. The position at which the two curves fit most closely together is taken to be the submarine\'s position. This fix is transmitted to the other navigation equipment on board, as necessary. In addition, the equipment performs its own readiness checks, diagnoses any trouble, and prints out in English what part to replace.- Condition: Item is in good condition. Sold as is for collection. Functionality is unknown/Not Tested.
- Data: This unit\'s data has been sanitized (If applicable).
- Pictures: What you see in pictures is what you will receive. Additional accessories are not included. If we have a quantity of this item available, it might not be the exact item in pictures but it will be in similar condition.
- REC Condition: F1-C3AA-04909You don\'t love it? Return it. It\'s our 30 Day Money Back Promise.
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