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NavSource Online:
Motor Torpedo Boat Photo Archive


Call sign:
Nan - Easy - Item - Oboe

80' Elco Motor Torpedo Boat:

  • Laid down 27 July 1943 by the Electric Boat Co., Elco Works, Bayonne, NJ
  • Launched 16 October 1943
  • Completed 25 November 1943
  • Placed in service 2 December 1943 and assigned to Motor Torpedo Boat Squadron FOUR (MTBRon 4) under the command of Lt. Comdr. Francis D. Tappaan, USNR
  • MTBRon 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, MTBRon 4 was assigned to the Operational Development Force, and based at Solomons, Md. It was the last squadron to be decommissioned, and its boats, PT's 613, 616, 619, and 620, which remained in service under the Operational Development Force, were the last World War II PT's in service in the Navy
  • Placed out of service 6 January 1946
  • Struck from the Naval Register 7 February 1946
  • Reclassified as a Small Boat, C105335, 27 August 1946
  • Acquired in 1954 by Captain Otto F. Stocker of Ottens Harbor, Wildwood, NJ and named Sightseer
  • Sold in 1978 to Captain Charles Schumann of Ottens Harbor
  • Currently owned by Captain Ron Sinn who is restoring her as PT-109


  • 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
    Engines were changed to two General Motors 6-71 diesels and one Superior diesel engine. Changed again to two Detroit Diesel (General Motors) 871N diesels and finally replaced by two General Motors V12-71 diesels.

    Click on thumbnail
    for full size image
    Size Image Description Source
    PT-486 93k Looking down into the cockpit Robert Hurst
    PT-486 118k On the Charles River, Boston, MA
    Courtesy of Boston Public Library, Leslie Jones collection
    Boston Public Library
    PT-486 119k Radar mast on PT-486 - 563 in 1944 and replacement of mast on earlier boats
    Elco Radar Mast Drawing No. 37 Scale 3/8" = 1'
    PT-486 84k c. October 1945
    PT-487, PT-486, PT-545 in the Welland Canal Between Lakes Erie and Ontario along with three unidentified PT boats and an Ore Carrier
    PT-486 84k c. 1945
    Great Lakes
    PT-486 84k Wildwood, NJ .
    Restored as PT-109
    PT-486 152k 1 March 2002 Jerry Gilmartin, MMC(SW), USN, Ret.
    PT-486 157k

    There is no DANFS history available for PT-486
    Back To The Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Index Back to the Motor Torpedo Boat (PT) Photo Index

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    This page created and maintained by Joseph M. Radigan
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