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NavSource Online: Mine Warfare Vessel Photo Archive

Egret (MSC[O] 46)
ex-Egret (AMS 46)

YMS-136 call sign:
Nan - William - Sugar - Queen

Egret served the Navies of the United States and Brazil.

YMS-1 Class Auxiliary Motor Minesweeper:

  • The second Egret was laid down 16 July 1942 by the Astoria Marine Construction Co., Astoria, OR
  • Launched 8 February 1943
  • Completed 19 March 1943 and commissioned YMS-136
  • Named Egret, reclassified as a Motor Minesweeper, AMS-46, 1 September 1947 and placed in service as a Naval Reserve training ship in the 3rd Naval District (New York)
  • Reclassified as a Coastal Minesweeper (Old), MSC(O)-46, 7 February 1955
  • Struck from the Naval Register 1 November 1959
  • Transferred to Brazil 15 August 1960 and renamed BNS Jutaí (M 12)
  • Placed out of service in 1969
  • Fate unknown.


  • Displacement 270 t.
  • Length 136'
  • Beam 24' 6"
  • Draft 8'
  • Speed 15 kts.
  • Complement 32
  • Armament: One 3"/50 dual purpose gun mount, two 20mm mounts and two depth charge projectors
  • Propulsion: Two 1,000shp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    USS YMS-136
    311k YMS-136 was built at Astoria Marine Construction Co., Astoria, OR. Photo of Astoria Marine Construction Company was inspired by William Lester Williams
    8.08k 7 photo PDF of plank owner Lester Fisk Williams showing associated documents during the period he served aboard YMS-136 from 19 March 1943 to 28 March 1945. William Lester Williams
    241k PDF List of CO's from Plank owner Lester Fisk Williams of YMS-136, c. 1942. William Lester Williams
    YMS-136 112k c. 1945
    Courtesy of Donald McPherson, 1976
    U. S. Navy photo NH 84970
    Naval History and Heritage Command
    USS Egret (AMS 46)
    Egret 189k

    A bird of the heron family known for the beauty of its plumage

    Tommy Trampp
    Egret 60k Historical Collections of the Great Lakes
    Egret 69k Joe Radigan

    Commanding Officers
    01LTJG G. F. Montiel, USNR1945
    02Chief Boatswain J. W. Cantrell, USN1950 - October 1951
    03LT Robert Edward Classen, USNOctober 1951 - 19 August 1952
    04LTJG Rodney Emmett Bornhop, USN19 August 1952 - December 1952
    05LT Robert Carhart Conolly, II, USN - USNA Class of 1948B
    Retired as Rear Admiral
    December 1952 - February 1954
    06LT Eugene Dale Geiger, USNFebruary 1954
    Courtesy Wolfgang Hechler, Ron Reeves and Joe Radigan

    View the Egret (MSC(O) 46)
    DANFS history entry located on the Haze Gray & Underway website
    Back to the Main Photo Index Back to the Mine Warfare Ship Photo Index Back to the Auxiliary Motor Minesweeper (YMS) Photo Index Back to the Motor Minesweeper (AMS) Photo Index Back to the Coastal Minesweeper (MSC) Photo Index

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    This page created and maintained by Joseph M. Radigan (of blessed memory) & Michael Mohl
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