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Ship Name and Designation History

This section lists the names and designations that the ship had during its lifetime. The list is in chronological order.

    Tang Class (Diesel Fast Attack) Submarine
    Keel Laid 1 December 1949 - Launched 21 August 1951

  1. USS TROUT SS-566
    Commissioned 27 June 1952 - Decommissioned 19 December 1978

    Struck from the Naval Register 19 December 1978

    Transferred to Iran 19 December 1978
    Abandoned by her Iranian crew at New London in March 1979 following the Iranian revolution

    Returned to US Navy custody in 1992
    Used as an experimental ship in 1994 and a target sub at NAWCAD Key West.
    Scrapped at ESCO Marine, Brownsville, Texas. Scrapping was completed 27 February 2009

Naval Covers

This section lists active links to the pages displaying covers associated with the ship. There should be a separate set of pages for each name of the ship (for example, Bushnell AG-32 / Sumner AGS-5 are different names for the same ship so there should be one set of pages for Bushnell and one set for Sumner). Covers should be presented in chronological order (or as best as can be determined).

Since a ship may have many covers, they may be split among many pages so it doesn't take forever for the pages to load. Each page link should be accompanied by a date range for covers on that page.

  1. Covers Page 1     (Date)



This section lists examples of the postmarks used by the ship. There should be a separate set of postmarks for each name and/or commissioning period. Within each set, the postmarks should be listed in order of their classification type. If more than one postmark has the same classification, then they should be further sorted by date of earliest known usage.

A postmark should not be included unless accompanied by a close-up image and/or an image of a cover showing that postmark. Date ranges MUST be based ONLY ON COVERS IN THE MUSEUM and are expected to change as more covers are added.
>>> If you have a better example for any of the postmarks, please feel free to replace the existing example.


Postmark Type
Killer Bar Text

Thumbnail Link To
Postmark Image
Thumbnail Link
Cover Image


USPO Slogan
Machine Cancel

"Submarine Base Br."

New London CT



Add-On cachet by Mike Hebert


Locy Type

USS Sperry



Add-On cachet by Mike Hebert


USPS Slogan
Machine Cancel

Philadelphia PA


Welcome to Philadelphia PA. Cachet by the Stephen Decatur Chapter No. 4, USCS


USPS Slogan
Machine Cancel

"Submarine Base Sta."

Groton CT



Decommissioning. Cachet by the USS Nathan Hale Chapter No. 68, USCS


Locy Type
2-1(n+) (USS)

USS William V. Pratt


Transfer to Iran - CANCELLED. Cachet by the Stephen Decatur Chapter No. 4, USCS


Other Information

NAMESAKE - Trout: Any of certain small, freshwater fishes, highly esteemed by anglers for their gameness, their rich and finely flavored flesh, and their handsome (usually mottled or speckled) coloration.

Two submarines of the US Navy have borne the name TROUT - USS Trout SS-202 and USS Trout SS-566.

The ships sponsor was Mrs. Albert H. Clark, the widow of Lt. Comdr. Albert H. Clark, the last Commanding Officer of USS TROUT SS-202.



If you have images or information to add to this page, then either contact the Curator or edit this page yourself and add it. See Editing Ship Pages for detailed information on editing this page.


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