Historic California Posts, Camps,
Stations and Airfields
La Jolla Aircraft Warning Service
(La Jolla Radar Site B-12, La
Jolla Radar Site B-5, Mount Soledad Control Center, Mount Soledad
Signal Station, VHF Sites 3M and 3R, Mount Soledad Fire Control
Station No. 2)
US Army Corps
of Engineers History
The War Department acquired 11.87 acres
of property to establish coast defense facilities and the La
Jolla Aircraft Warning Service (AWS) Station. Two tracts consisting
of a 5.74-acre parcel and a 0.92-acre road easement were acquired
by declaration of taking from Mooreland Heights Company on 16
May 1944. One tract of 0.17 acres was acquired by license on
20 November 1944. The remaining 5.04 acres, consisting of five
easements, were acquired through donations from various owners
between 3 September 1941 and 28 August 1944.
The 11.87 acre property was used in the location, construction,
maintenance, and operation of roads, utility lines, and coast
defense facilities in connection with La Jolla AWS Station. It
was equipped with and SCR-270 radar
On 31 December 1949, the 11.87 acre property was declared as
excess by the Deparment of the Army. Approximately 11.60 acres
were transferred to the Department of the Navy on 28 September
1949, with another 0.17 acre transferred on 13 January 1956.
Since then the Navy Public Works Center has operated the 11.77
acre site as the Mt. Soledad Signal Station. The remaining 0.10-acre
license was terminated on 28 October 1952 and is now owned and
operated by Midwest Television Incorporated
Coast Artillery data below also refernece
the presence of an Army Air Forces aid to navigation activity
known as VHF Site 3R and located on the site. Some Formerly Used
Defense Sites documentation also indentify an aid to navigation
site identified as VHF Site 3M colocated on the site. No other
documentatio is currently available.
Source: Los Angeles District,
US Army Corps of Engineers Prepared 1999
La Jolla Radar Sites B-12 and B-5
SCR-270-D Mobile Long Wave
Aircraft Warning Set
Six-vehicle mobile, long wave early warning aircraft detector.
Azimuth and range supplied. Set is equipped with "A"
To establish a screen of warning which provides information of
approaching aircraft as early as possible but with a sacrifice
of accuracy in range, azimuth and elevation. IFF equipment RC-150
Performance and Siting: Maximum range on a single bomber flying at indicated
heights, when set is on a flat sea level site:
Set should be sited at a height between
100' and 1000' above an unobstructed reflecting surface.
Complete set is carried in 6 vehicles, the largest of which measures
30'4" x 9'10" x 8'. Total weight of shipment is 101,790
lbs; total volume 11,485 cu. ft.
Operates from trucks in which mounted. Can be placed in operation
about 6 hours after arrival at site.
men comprise operating crew. For 24 hour operation about 50 men
are required to run radar, communication radio, and camp.
KW, supplied by PE-74, 25 KVA gasoline-driven generator, having
fixed consumption of 4 gal. per hour, non-leaded gasoline.
La Jolla Aircraft Warning Station
Fire Control Station No. 2
A 250 ft x 200 ft parcel of land located
immediately adjacent to and ajoining the northwest end of the
La Jolla Aircraft Warning Service Warning Station. The site consited
of a single two-tier fortified structure that provided fire control