Program began in Spring 1952. The USAF cancelled program in October 1955. The reason for the mention of the this program is that equipment was relocated to the original East Coast Chain sites in 1957 by USN for the experimentation long range navigational system which became Loran-C.
CYTAC was to be an all-weather, long-range, tactical bombing system,. As a weapon system it would ultimately have the capability to automatically bomb a number of pre-selected targets. To accomplish this objective, a special-purpose digital computer was to be used to guide the aircraft to the bomb-release points using navigational information from the CYTAC receiver and other inputs from various aircraft instruments all in combination with preprogrammed target and ballistic data. At the time such a system was rather ambitious undertaking.
Operating System: Frequency: 100Kc , 8 Pulse, Phase Coded, PRR: 51.2ms/51200
Equipment: AN/FPN-15 LF LORAN Transmitters, with pulse spacing at 1200us apart in a group of eight.
The eight phase codes in the original spec was at the SECRET level not to be used during the testing. Phase coding was used the last two months which resulted satisfactory.
During the test period a balloon was used to carry an antenna wire aloft to a height of 2475 feet.
Master - Cape Fear (Carolina Beach), NC - 60Kw Pulse Power Radiated
Slave 1 - Carabelle, FL - 60Kw Pulse Power Radiated - in 1957 equipment relocated to Jupiter for LORAN-C project
Slave 2 - Forestport, NY - 220Kw Pulse Power Radiated - On air test in 1952 - in 1957 equipment relocated to Martha's Vineyard for LORAN-C project
Regular operation of the transmitters started in September 1954 and was continued until October 1955 on an intermittent schedule not 24/7/365.
Clarkton, NC -
Clarksdale, MS -
South Webster, OH
Triangulation Monitor Station - these site were pre-selected a test site.
Cat Point, FL
Principles of Operation (pdf)
CYTAC - A Multi-Propose Precision Navigation System by Wilbert Frantz (pdf)
CYTAC - A Multi-Propose Precision Navigation System Part II by Walter N. Dean/Part III by Wilbert Frantz (pdf)
NEW CYTAC Receiver on a F-84 (pdf)
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