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NavSource Online:
Submarine Chaser Photo Archive

USCGC Air Egret (WAVR 420)
ex-USS SC-642

Call sign:
Nan - William - Queen - Fox

ex-USS PC-642

SC-642 served both the U. S. Navy and Coast Guard

SC-497 Class Submarine Chaser:

  • Laid down 28 October 1941 by the Peterson Boat Works, Sturgeon Bay, Wisconsin
  • Launched 30 May 1942
  • Delivered 4 August 1942 and commissioned USS PC-642
  • Reclassified SC-642 in April 1943
  • Transferred to the Coast Guard 24 January 1946 and commissioned USCGC Air Egret (WAVR 420)
  • Struck from the Naval Register 7 February 1946
  • Sold 11 March 1948
  • Fate unknown.


  • Displacement 98 t.
  • Length 110' 10"
  • Beam 17'
  • Draft 6' 6" (fl)
  • Speed 21 kts.
  • Complement 28
  • Armament: One 40mm gun mount, one/two twin .50 cal. machine guns, two/three depth charge projector "K Guns", 14 depth charges with six single release chocks, and two sets Mk 20 Mousetrap rails with four 7.2 projectiles
  • Propulsion: Two 1,540bhp General Motors (Electro-Motive Div.) 16-184A diesel engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    SC-642 146k - Historical Collections of the Great Lakes
    SC-642 6k - -
    SC-642 303k 26 July 1944
    Chaffee (DE 230) underway slowly with SC-642alongside
    National Archives photos 80-G-245620 and 80-G-245621 courtesy of Chris Wright
    Ed Zajkowski
    SC-642 557k

    There is no DANFS history available for SC-642
    Additional Resources and Web Sites of Interest
    Patrol Craft Sailors Association
    "Subchaser in the South Pacific"
    by J. Henry Doscher, CAPT, USN, Ret.

    Back To The Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Ship Index Back to the 110' Submarine Chaser (SC) Photo Index

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    This page created by Gary P. Priolo and maintained by Tom Bateman
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