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NavSource Online:
Motor Torpedo Boat Photo Archive


Call sign:
Nan - Yoke - Baker - Queen

80' Elco Motor Torpedo Boat:

  • Laid down 30 June 1942 by the Electric Boat Co., Elco Works, Bayonne, NJ
  • Launched 15 September 1942
  • Completed 13 October 1942, placed in service and assigned to Motor Torpedo Boat Squadron FOUR (PTRon 4) under the command of Lt. Comdr. William C. Specht, USN
  • PTRon 4 was the training squadron, based at the MTB Squadrons Training Center, Melville, R.I. It was the largest squadron, having a peak of 28 boats in service at one time. When the training center was decommissioned early in
    1946, PTRon 4 was assigned to the Operational Development Force, and based at Solomons, MD
  • The "Zebra" was placed out of service 16 January 1946
  • Struck from the Naval Register 7 February 1946
  • Sold 10 September 1946, named The Question Mark and operated as a fishing/tour boat out of Ocean City, MD
    Naval Vessel Register of 1 January 1949 lists transfer to the War Shipping Administration as October 1946
  • Stripped and sunk as an artificial reef in the late 1970s.


  • Displacement 56 t.
  • Length 80'
  • Beam 20' 8"
  • Draft 5'
  • Speed 41 kts.
  • Complement 17
  • Armament: One 40mm mount, four 21" Torpedoes and two twin .50 cal. machine guns
  • Propulsion: Three 1,500shp Packard W-14 M2500 gasoline engines, three shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    PT-139 & 315 135k PT-315 and PT-139 at Melville, RI Jerry Gilmartin, MMC(SW), USN, Ret.
    PT-139 108k c. 1942
    In zebra camouflage
    U.S. Navy photo from U.S. Warships of World War II by Paul H. Silverstone
    Mike Green
    Question Mark
    PT-139 55k . .

    There is no DANFS history available for PT-139
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