Historic California Posts, Camps,
Stations and Airfields
La Jolla-Hermosa Fire Control
Site No. 3
The original site is comprised of 22 separate,
but contiguous tracts, totalling 8.084 acres. These 22 tracts
were obtained by the War Department between 25 November 1941
and 24 February 1943. United States government beneficial interest
was in the form of land ownership, leasehold, easement, or licence.
An additional 23rd "no area" tract was controlled through
a permit obtained from the City of San Diego.
Acquisition by the united states was for use as a Fire Control
station and cable right-of-way in conjunction with the Harbor
Defenses of San Diego.
Commencing 9 November 1947 and ending 28 October 1952, 5.215
acres were disposed of by the United States through quitclaim,
lease cancellation, and easement termination. On 20 August 1951,
1.043 acres was transferred to the U.S. Navy and on 13 January
1956, the remaining 1.826 acres was transferred to the U.S. Navy.
As of 30 January 1992, Southwest Division/Naval Facilities Engineering
Command (headquartered in San Diego) has no records indicating
that they have any ownership, control, and/or any other beneficial
interest in any of the tracts (2.869 acres in total) transferred
to them, nor do they have any records describing the disposition
of the property following their assumption of control between
1951 and 1956. At this time, the land is privately owned.
This installation provided fire control
data to the following batteries:
Supporting Battery Ashburn, Fort Rosecrans
of an SCR-296 radar set.
Artillery gun-laying medium wave radar, assigned to modern 6
inch or larger batteries.
Set is designed
to track a surface target in range and azimuth. Data are sent
to the plotting room and used in firing. An SCR-296-A normally
is assigned to one battery, but may furnish data to more. Works
with IFF RC-136-A.
Range is shown
on "A" scope. The target is tracked in azimuth with
a pip matching oscilloscope or a zero-center meter. Range accuracy
is about ± 30 yards while azimuth accuracy is about ±
0.20 degree under the best conditions. The set has a dependable
range of 20,000 yards on a destroyer size target when employed
at a height of 145 feet. Site should be not less than 100 feet
above sea level; 150 to 500 feet is recommended.
Shipment includes areas and separate
generator. When crated the total weight is 91,763 lbs. Largest
unit is 5,270 lbs.
a tower, an operating building, and two power plant buildings.
The tower is obtainable in heights of 25, 50, 75, and 100 feet.
Concrete floors must be put in locally.
consists of 5 men in addition to a power plant operator and maintenance
man who should be available at all times.
of 2.3 KW is supplied by PE-84C -- commercial or auxiliary 110
V, AC single phase. Generator needs high octane gasoline.