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NavSource Online: Patrol Craft / Gunboat / Submarine Chaser Photo Archive

Topaz (PYc-10)

Call sign:
Nan - Baker - Peter - Mike

Coastal Patrol Yacht:

  • Built in 1931 as the yacht Doromar by the Luders Marine Construction Co., Stamford, Connecticut
  • Acquired by the Navy 14 February 1941
  • Renamed Topaz and designated as a Coastal Patrol Yacht, PYc-10, 3 March 1941
  • Converted for Naval service at Robert Jacob Inc., City Island, New York
  • Commissioned 14 July 1941 at New York
  • Decommissioned 27 September 1944 at Philadelphia, Pennsylvania
  • Struck from the Naval Register 14 October 1944
  • Transferred to the War Shipping Administration for disposal in September 1945
  • Fate unknown.


  • Displacement 160 t.
  • Length 111' 8"
  • Beam 18' 11"
  • Draft 7' (mean)
  • Speed 13 kts.
  • Armament: One 3"/50 dual purpose gun mount, two .30 cal. machine guns, and two depth charge tracks
  • Propulsion: Two 600bhp Winton diesel engines, two shafts.

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    Doromar 85k Advertisement from Rudder Magazine. Kevin Fraser

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