Description: tug, iron.
Dimensions: length 117.25 ft., width 23 ft., depth 15.3 ft.
Tonnage: gross 278, other.
Propulsion: steam, propeller.
Machinery: 750 indicated horse power, 2 cylinder compound steam engine with cylinder diameters of 22 inches, 40 inches and a stroke of 28 inches; 1 single ended Scotch Boiler, Coal fired.
Cargo: Not Applicable.

The Shipwreck

Date Sunk: September 13, 1942.
Cause: collision.
Location: East of Manomet Point.
Coordinates: latitude 41° - 56' - 16" N; longitude 70° - 29' - 33" W.
Loran: 13956.8 and 44093.5.

Shipwrecks of the Second World War are very difficult to write about. More often than not, their sinking was censored from local press coverage to avoid alarming the general public of possible enemy action so close to home.

Limited information indicates that the Mars sank in collision with the coastal tanker Bidwell. The tanker sheared off the tug's bow and it quickly went down in 120 feet of water.

Dive Site Conditions

Depth in feet: maximum 125, minimum 95.
Visibility in feet:

Except for the top of the wheelhouse, the tug lies upright and intact on a hard clay bottom. The pilothouse can be found on the bottom to starboard of the wreck.

Historical Background

Constructed: in 1890, in Camden, New Jersey by builder J.H. Dialogue & Sons.
Construction details: 1 deck.
Owners: Martin Marine Transportation Co., Philadelphia, Pennsylvania.
Home or Hailing Port: Wilmington, Delaware.
Official number: 92153. Country: U.S.A.
Other Comments: Built to haul coal laden barges, the vessel was sold to a Philadelphia Company in 1920 and then again in 1936 to a Wilmington, Delaware, Company.


Encyclopedia of American Shipwrecks; Berman, 1972
Non-Submarine Contacts; H.O.Pub.120 Vol.II, 1968
The Fisherman, magazine; August 17, 1989/April 25, 1991
The Record, "American Lloyds," American Bureau of Shipping; 1943
WestWind Explorer; MetroWest Dive Club, October/1990, August/1991
Wrecks Below; Luther, 1958