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Gunboat Photo Archive

USS Tenacity (PG 71)

Tenacity call sign:
Nan - How - Able - Dog

ex-HMS Candytuft (K 09)

Tenacity served the Navies of Great Britain and the United States.

British Flower Class Corvette/Temptress Class Patrol Gunboat:

  • Laid down in 1940 as the "Flower Class" corvette HMS Candytuft (K-09) by Grangemouth Dry Dock Co., Grangemouth, Scotland
  • Launched 8 July 1940
  • Acquired by the U. S. Navy 4 March 1942 at New York, NY
  • Commissioned USS Tenacity (PG-71), 11 June 1942
  • Decommissioned 22 August 1945 at Harwich, England
  • Returned to the Royal Navy 26 August 1945
  • Struck from the Navy Register 17 September 1945
  • Sold into mercantile service 9 July 1946
  • Renamed SS Maw Hwa in 1947
  • Fate unknown.


  • Displacement 1,375 t.
  • Length 205' 2"
  • Beam 33'
  • Draft 14' 7"
  • Speed 16.5 kts.
  • Complement 87
  • Armament: One 4"/50 gun mount, one 3"/50 dual purpose gun mount, two 20mm gun mounts and two depth charge tracks
  • Propulsion: Two 225psi Scotch boilers, one 2,750ihp Northeastern Marine Engine Co. vertical triple expansion engine, one shaft.
    Click on thumbnail
    for full size image
    Size Image Description Source
    HMS Candytuft (K 09)
    Candytuft/Tenacity 96k Robert Hurst
    Flower Class Corvette
    Flower Class Corvette 168k "Escort Vessel (Corvette) - (Flower Class) - With Extended Forecastle, Increased Sheer, & Fuller Lines Fwd." U.S. Navy preliminary design plan, copied from Smith Dock Co., Ltd., Drawing No. 232. This plan, dated April 1941, is for a modification of the British "Flower" class corvette. Scale of the original drawing is not given, but appears to be 1/16" = 1'. The original plan is in the 1939-1944 "Spring Styles Book" held by the Naval Historical Center.
    U.S. Navy photo S-511-30
    Naval Historical Center
    USS Tenacity (PG 71)
    Tenacity 123k Tommy Trampp
    Tenacity 456k 26 June 1942
    New York Navy Yard
    USS Lansdowne (DD 486) is in the background
    U.S. Navy photo F644C2487
    Ed Zajkowski
    Tenacity 436k 26 June 1942
    New York Navy Yard
    U.S. Navy photos F644C2488 and F644C2489
    Tenacity 323k
    Tenacity 620k 26 June 1942
    New York Navy Yard
    USS Lansdowne (DD 486) is in the background
    U.S. Navy photos F644C2490 and F644C2491
    Tenacity 562k
    Tenacity 48k 26 June 1942
    New York Navy Yard
    U.S. Navy photos
    Tenacity 46k
    Tenacity 95k 26 June 1942
    New York Navy Yard
    She is wearing Measure 12 dappled camouflage
    U.S. Navy photo courtesy of Floating Drydock from "Naval Camouflage 1914-1945: A Complete Visual Reference", by David Williams
    Robert Hurst
    Tenacity 115k c. March 1943
    Underway as part of a Casablanca bound convoy
    Photo by J. R. Eyerman from the Life magazine archives shared by Peter DeForest
    Mike Green
    Tenacity 108k

    View the Tenacity (PG-71)
    DANFS History entry located on the Haze Gray & Underway Website
    Back To The Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Index Back to the Patrol Gunboat (PG) Photo Index

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