USNS Mission San Juan (AO-126)
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| Career |  |
|---|---|
| Ordered: | |
| Laid down: | 30 July 1943 |
| Launched: | 14 October 1943 |
| Commissioned: | 31 January 1944 |
| Decommissioned: | Unknown |
| Fate: | Sold for scrapping in 1975 |
| General Characteristics | |
| Displacement: | 5,532 tons light; 23,350 tons full |
| Length: | 523 ft 6 in (160 m) |
| Beam: | 68 ft (21 m) |
| Draft: | 30 ft (9 m) |
| Speed: | 14 knots (26 km/h) |
| Complement: | 42 mariners; 17 Navy Armed Guard |
| Armament: | one single 5"/38 dual-purpose gun mount; four single 3"/50 dual-purpose gun mounts; four twin 40mm AA gun mounts; 4 twin 20mm AA gun mounts. |
The USNS Mission San Juan was one of twenty-seven Mission Buenaventura Class fleet oilers built during World War II for service in the United States Navy, named for the Franciscan mission located in San Juan Bautista, California.
Mission San Juan was laid down 30 July 1943 under a Maritime Commission contract by Marine Ship Corporation, Sausalito, California; launched 14 October 1943; sponsored by Mrs. Derrill D. Standifird; and delivered to the Maritime Commission 31 January 1944 upon completion. Chartered to Deconhill Shipping Company in February, 1944 the tanker spent the remainder of the War supplying fuel oil to American and Allied Forces overseas, during which time she was awarded the National Defense Service Medal.
Shortly after the cessation of hostilities, Mission San Juan was placed in the Maritime Commission Reserve Fleet at Mobile, Alabama on 9 April 1946. Acquired by the Navy 21 November 1947 she was retransferred to the Naval Transportation Service the same date. Designated as Mission San Juan (AO‑126), she served as such until 1 October 1949 when the newly formed Military Sea Transportation Service took over the functions and ships of the Naval and Army Transportation Services. Acquired by MSTS on 1 October, she was designated USNS Mission San Juan (T‑AO‑126) and was placed in service with a civilian crew. During the Korean War, she carried fuel to the forward operating bases and continued in this duty until after the War, until 12 February 1958 when she was placed out of service by MSTS, stricken from the Naval Vessel Register and transferred on the same date to the Maritime Administration and laid up in the Reserve Fleet at Beaumont, Texas.
Reacquired by the Navy on 28 October 1964, Mission San Juan was moved to the General Dynamics Shipyard, Quincy, Massachusetts, for conversion into a missile range ship. During this conversion, she was jumboized by fitting a new 72‑foot section amidships and virtually, rebuilt in order to accommodate the required electronic equipment. Renamed Flagstaff and designated AGM‑21 on 8 April 1965, she was again renamed, on 1 September 1965, to Mercury.
Accepted by MSTS for service on 16 September 1965, she was designated as USNS Mercury (T‑AGM‑21) and assigned to MSTS Atlantic for duty. During the Project Gemini series of orbits, she served as an important link between the astronauts and the control stations at Cape Kennedy. She carried out this duty until the summer of 1967 when she returned to the yard at Quincy for the installation of satellite terminals.
Upon completion of this installation on 18 September 1967, she was reassigned to MSTS, Atlantic, but shortly thereafter was reassigned to MSTS, Pacific. There she was to play an important part in the Project Apollo moon shot tests as she provided important communication links between the Apollo moon craft and earth tracking stations.
The Mercury fell to the cutter's torch in 1975 when she was sold as scrap.
[edit] References
This article includes text from the public domain Dictionary of American Naval Fighting Ships.
- Mission San Juan. Dictionary of American Naval Fighting Ships. Retrieved on March 31, 2006.
- T-AO-126 Mission San Juan / T-AGM-21 Flagstaff / T-AGM-21 Mercury. Fleet Oiler (AO) Photo Index. Retrieved on March 31, 2006.
[edit] See also
| Mission-class tankers |
|---|
|
Mission Buenaventura · Mission Capistrano · Mission Carmel · Mission De Pala · Mission Dolores · Mission Loreto · Mission Los Angeles · Mission Purisima · Mission San Antonio · Mission San Carlos · Mission San Diego · Mission San Fernando · Mission San Francisco · Mission San Gabriel · Mission San Jose · Mission San Juan · Mission San Luis Obispo · Mission San Luis Rey · Mission San Miguel · Mission San Rafael · Mission Santa Barbara · Mission Santa Clara · Mission Santa Cruz · Mission Santa Ynez · Mission Solano · Mission Soledad · Mission Santa Ana |
| Converted to distilling ships Mission San Xavier • Mission San Lorenzo |
| List of auxiliaries of the United States Navy |
