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Section Patrol Craft Photo Archive

HMCS Grizzly (Z 14)

Grizzly call sign:
Charlie - Golf - Juliet - Yankee

ex-USS SP-507

Call sign (1919):
George - Sail - Fox - Quack

ex-USS Machigonne (SP 507)

Machigonne call sign (1933):
King - Love - King - George

Machigonne served the Navies of the United States and Canada

Patrol Yacht:

  • The first Machigonne was laid down in 1909 by the Gas Engine and Power Co., and Charles L. Seabury Co., Morris Heights, NY for former Massachusetts Governor (1905 - 1906) William L. Douglas
  • Sold in 1910 to Irving E. Raymond of New York
  • Acquired by the Navy 17 May 1917
  • Commissioned USS Machigonne (SP-507), 9 July 1917
  • Renamed SP-507 in 1918 to avoid confusion with Machigonne (SP 1043)
  • Struck from the Navy Register 31 May 1919
  • Sold back to her former owner 10 June 1919
  • Registered in 1933 to J. F. Craig of Long Beach, CA as the steam yacht Machigonne
  • Later renamed Gypsy
  • Acquired by the Canadian government and commissioned HMCS Grizzly (P 14), 17 July 1941
  • Reclassified Z-14
  • Decommissioned 17 June 1944
  • Sold for scrap in December 1944 to the Capital Iron and Metal Company of Victoria, British Columbia, Canada.


  • Displacement 195 t.
  • Length 140'
    1933 - 129.4'
  • Beam 19'
    1933 - 19.2'
  • Draft 8'
    1933 - 10.8'
  • Speed 14 kts.
    1941 - 12 kts.
  • Complement 31
    1933 - 15
    1941 - 40
  • Armament: Three 3-pounders, two machine guns and one Y-gun depth charge projector
    1941 - One 6-pounder and two Lewis machine guns
  • Propulsion: One Seabury boiler, one 600hp triple expansion steam engine, one shaft
    1941 - One German U-Boat type diesel engine
    Click on thumbnail
    for full size image
    Size Image Description Source
    Yacht Machigonne
    Machigonne 115k At anchor in a harbor, prior to World War I
    Naval Historical Center photo NH 99580
    Robert Hurst
    Machigonne 70k Underway, circa 1909-1917
    U.S. Navy photo NH 101970
    Naval Historical Center
    Machigonne 131k Photo courtesy of Public Archives of Canada from "The Armed Yachts of Canada", by Fraser McKee Robert Hurst
    HMCS Grizzly (Z 14)
    Machigonne 66k Grizzly at Esquimalt, British Columbia in September 1942. Because her German diesels had been damaged beyond repair during her delivery run, she was employed mainly as a static examination ship for the rest of her RCN service
    Photo from "The Armed Yachts of Canada", by Fraser McKee
    Robert Hurst

    There is no DANFS History currently available for Machigonne (SP 507)
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    This page created by Joseph M. Radigan and maintained by David Wright
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