
Description: Seaplane
wrecking derrick; Steel
Dimensions:
length - 132.6 ft. width - 30 ft.
depth - 12.4 ft.
Tonnage: gross - other -
Propulsion: Diesel
Machinery:
Cargo: Salvage gear
The Shipwreck
Date Sunk: December, 1957
Cause:
Location: Martha's Vineyard, north of Nomansland Island.
Coordinates:
Latitude, 41o - 16' - 24"N Longitude, 70o - 49' - 08"W
Loran:
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Dive Site Conditions
Depth in feet: maximum - 30;
minimum -
Visibility in feet:
average -
In 1965 Brad Luther reported the vessel lay keel up.
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Historical Background
Constructed: year - where -
builder -
Construction details:
Crew:
Master:
Owners:United
States Navy
Home or Hailing Port:
Former Name(s), date(s):
Official number:
Country: U.S.A.
Other Comments:"Mary
Ann" Class Navy wrecking derrick. The YSD designation of this class of floating crane
originally applied to a self-propelled seaplane recovery vessel used at Naval
air-stations. YSD-11, 20, 22, and 23, constructed at the Charlestown Navy Shipyard were of
this class. Later the classification was applied to non-self-propelled seaplane wrecking
derricks.
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Salvage
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Sources:
Dictionary of American Naval Fighting Ships, Vol. IV;
Navy Dept.
Encyclopedia of American Shipwrecks; Berman, 1972
The Broadside, Boston National Historical Park; spring 1995
The Vanishing Fleet; Luther, 1965
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These files are under construction. Any
information, specifically dive site related, would be greatfully appreciated.
Send comments to: Chris Hugo
Copyright © 2000 by Christopher C. Hugo
Massachusetts Board of Underwater Archaeological Resources
All Rights Reserved
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