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NavSource Online: Service Ship Photo Archive

Defiant (YT-804)


Valiant (Z-TECH 4500) Class District Harbor Tug:
  • Built by Martinac Shipbuilding Corp, Tacoma, WA (YN 250)
  • Laid down, date unknown
  • Launched, 10 July 2010
  • Delivered, 28 September 2010
  • Placed in service as Defiant (YT-804), 22 October 2010
    Specifications:
    Displacement 460 tons (lt) 590 tons (fl)
    Length 90'
    Beam 38' 3"
    Draft 12' 5"
    Depth 16' 5"
    Speed 12.4 kts (trial)
    Accommodations
    Officers 2
    Enlisted 4
    Armament two .50 cal machine guns
    Propulsion
    two Caterpiller CAT 3512C, main engines, each rated 1,800 bhp, each driving a Schottel Model SRP 1012 steering/propulsion Z-Drive unit, with two fixed pitch propellers, providing 42 t. (92,500 lb) bollard pull ahead, 45 t (99,205 lb) astern
    Electrical power is delivered by a pair of R.A. Mitchell Co. Diesel generator sets with a John Deere 6068SFM75 prime mover, each rated at 130Kw
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    Size Image Description Source
    YT-804 60k Defiant (YT-804) underway near her builders yard at Tacoma, WA., date unknown. workboat.com
    YT-804 431k Defiant (YT-804) underway in Rich Passage, returning to Bremerton, WA after escorting USS John C. Stennis (CVN-74).
    Photo by "Trappist the Monk" from MV Kaleetan, 25 June 2012
    Robert Hurst
    YT-804 431k Defiant (YT-804) berthed at Naval Magazine Indian River, Washington on 09 August 2015 Photo by Peter M. Leenhouts
    YT-804 138k Three views of Defiant (YT-804) operating off Puget Sound Naval Shipyard, 27 May 2017. Ships in background are Nimitz (CVN-68) and USNS Benevidez (T-AKR-306) Photos by Ray F. Lonaker Jr.
    YT-804 245k
    YT-804 264k
    YT-804 244k Defiant (YT-804) assisting USNS Fisher (T-AKR-301) shift berths at Puget Sound Naval Shipyard, 24 June 2017. Photo by Ray F. Longaker Jr.

    There is no DANFS history for Defiant (YT-804) available at NavSource
    Additional Resources and Web Sites of Interest
    National Association of Fleet Tug Sailors
    "New Navy tugs have the finesse, power for a wide range of duties", by Brian Gauvin Professional Mariner, July 2, 2012

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    This page was created by Gary P. Priolo and is maintained by David L. Wright
    All pages copyright NavSource Naval History
    Last Updated 25 June 2017