Atlantic Undersea Test and Evaluation Center

AUTEC - Atlantic Undersea Test and Evaluation Center, Andros Island, Bahamas
The AUTEC complex on Andros Island in the Bahamas in 1974. The installation is facing the Tongue of the Ocean, which contains deep-water hydrophones used in AUTEC's underwater testing.

The United States Navy's Atlantic Undersea Test and Evaluation Center (AUTEC) is a laboratory that performs integrated three-dimensional hydrospace/aerospace trajectory measurements covering the entire spectrum of undersea simulated warfare calibration, classifications, detection, and destruction. Its mission is to assist in establishing and maintaining naval ability of the United States through testing, evaluation, and underwater research.

General information

The sophisticated facility includes three test ranges — the Weapons Range, the Acoustic Range, and the FORACS Range — all located in the Tongue of the ocean (TOTO), a deep-ocean basin approximately 100 nautical miles (190 km) long by 15 nautical miles (28 km) wide, with depths as great as 6,000 feet (1,800 m). The main AUTEC support base and downrange tracking stations are on Andros Island in the Bahamas, just west of Nassau and about 180 nautical miles (333 km) southeast of West Palm Beach, Florida.

Deep water range

The deep water Weapons Range lies roughly parallel to the east coast of Andros Island. It is the largest and most versatile of the AUTEC ranges, and it is capable of tracking up to 63 in-water objects simultaneously. The range is supported by the Main Base (Site 1) and various smaller sites located to the south along the east coast of Andros Island. AN/WQC-2A Sonar Communications Sets and Bi-Directional Communications Nodes provide underwater voice communications for mobile target and emergency command signal coverage, while HF, UHF, and VHF radio communications are available over the entire range.[1]

In-air tracking

In-air tracking is provided by radars and various other in-air tracking systems such as LATR, the Hyperbolic In-Air Tracking System (HITS), and Differential GPS (DGPS). These in-air systems cover the AUTEC Weapons Range up to a distance of 500 nautical miles (930 km) from Site 1 and a height of 70,000 feet (21,000 m). Surveillance radars operate to support air and surface safety.[1]

In-water tracking

The in-water portion of the Weapons Range covers 500 square nautical miles (1,700 km²). This range can be divided into two distinct tracking areas consisting of roughly 250 square nautical miles (850 km²). This flexibility allows for the unique operation of two distinct individual exercises. Use of the total range is referred to as "Weapons Range", while dividing the range into two distinct portions, the northern section is referred to as "Weapons Range North", whereas the southern portion is called "Weapons Range South".[1]

Electronic Warfare Threat Simulator

Electronic Warfare Threat Simulator (EWTS) is a real-time system that can generate complex, dynamic, electromagnetic signal environments at the radio frequency (RF) level. With this system, AUTEC offers capabilities to test different platform receivers in an open-air, over-the-water range. The system consists of a radar simulator, pedestal and controller, antennas, high-power amplifiers, calibration equipment, and an operator workstation. The system is housed in an air-conditioned radome and located on a 74-foot (23 m) tower.[2]


The typical task performed at AUTEC is testing and certifying the proficiency of U.S. Navy submarine captains and their crews, as well as the accuracy of their undersea weapons.

Brief history of AUTEC

During the 1940s and 1950s, the U.S. Navy's need for a deep water test facility became so apparent that in 1958 the Chief of Naval Operations established an advisory group to determine the location and specifications for testing underwater vehicles, weapons, and weapon systems. As a result of the extensive studies of this group, the United States Secretary of the Navy in November 1959 directed establishment of the Atlantic Undersea Test and Evaluation Center (AUTEC) under the Bureau of Ships (now Naval Sea Systems Command) to provide a deep water test and evaluation facility for making underwater acoustic measurement, testing sonar, and providing accurate underwater, surface and air tracking data on ships and weapons in support of the U.S. Navy's antisubmarine and undersea research and development programs.

Captain L. L. Jackson, Jr., USN, Commanding Officer, AUTEC, 1969
Captain Jackson, Mrs. Jan Jacobson Carter, George W. Jacobson, Jr., Mrs. Jacobson, and Admiral Brush stand in front of Jacobson Hall after its dedication by Admiral Brush.

The area chosen for AUTEC was the Tongue of the Ocean (TOTO) located between the islands of Andros, New Providence, and Exuma Sound in the Bahamas. Chosen because of its ideal natural characteristics, and its climate which permits year-round operations, the TOTO is a U-shaped, relatively flat-bottomed trench approximately 20 miles (32 km) wide by 150 miles (240 km) long with a depth which varies gradually from 3,600 feet (1,100 m) in the south to 6,600 feet (2,000 m) in the north. Its only exposure to the open ocean is at the northern end, and except for this ocean opening, the TOTO is surrounded by numerous islands, reefs, and shoals which make a peripheral shelter isolating it from ocean disturbances, particularly high ambient noise which degrades undersea tests and evaluations.

A joint United States/United Kingdom Agreement signed in 1963 with the concurrence of the Bahamian Government, enabled the United States to develop this area of water and certain territory on the east coast of Andros Island, readily accessible to the TOTO, and there install equipment to build three offshore test ranges. Under this agreement, the Royal Navy has equal access to the test facility.

Construction of the Navy's Main Base and the downrange tracking sites on Andros Island began in March 1964, and the initial cadre of officers and men arrived by U.S. Navy LST in August 1965. In October of that year, Commander G. P Barney arrived as the first permanent Officer-in-charge, Andros Ranges, and the official dedication of AUTEC was held on 14 April 1966. The complex electronics installation was accomplished from fall of 1965 to fall of 1966, and in September 1966 RCA Service Company was awarded the Maintenance and Operations Contract for AUTEC.

Temporary U.S. Mainland Headquarters was opened at the Orlando Air Force Base in September 1966 with Captain L. L. Jackson, Jr., being assigned as Prospective Commanding Officer. Following a study of possible locations for a permanent headquarters the West Palm Beach, Florida area was chosen due to the combined facilities of the airport and the Port of Palm Beach, plus its close proximity to Andros Island.

On 26 February 1967, AUTEC was commissioned at West Palm Beach when Admiral E. J. Fahy, Commander, Naval Ship Systems Command, presented Captain Jackson with orders making him the first Commanding Officer, and AUTEC became an operational field activity. In May 1967, headquarters personnel moved from Orlando to West Palm Beach and established offices at the Palm Beach International Airport in the building which was formerly the Airport Terminal. In July 1967 at a Change of Command ceremony on Andros Island, Commander Barney was relieved by the new Officer-in-Charge, Andros Ranges, Commander Frank A. Smith.

First of the three ranges to become operational was the Weapons Range in 1966. This was followed by the Acoustics Range, a portion of which became operational in 1968 with a total operational capability anticipated by the end of 1969. First phase of the Sonar Range became operational in January 1968, and the final phases, were scheduled to be completed and operational by 1974.[3]


Major facilities at AUTEC's Andros Island base were named in 1969 in honor of various Navy heroes:

See also


  1. 1 2 3 "The AUTEC Weapons Range". Department of the Navy. Archived from the original on 25 August 2007. Retrieved 2007-09-12.
  2. "The Electronic Warfare Threat Simulator". Department of the Navy. Archived from the original on 3 September 2007. Retrieved 2007-09-12.
  3. U.S. Navy AUTEC Soundings, August 1969.
  4. U.S. Navy "AUTEC Soundings" August 1969
  5. Chickcharney News, April 1987

External links

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