Vessel Name: |
Overfalls (LV118 / WAL539) |
Built: |
1938 at Rice Brothers Shipyard, East Boothbay, Maine |
Cost: |
$223,900 |
Mast: |
Single |
Dimensions: |
Length 114'; beam (width) 26'; draft 13'4", weight 422 tons. |
Engine: |
Single Cooper-Bessemer 400 hp, 8 cylinders with air starter. |
Propeller: |
steel, 7' 2" diameter, gear-driven |
Maximum Speed: |
Nine knots (between 10 and 11 mph) |
Primary Navigation Light: |
Dual 375 mm electric lens lanterns located 57 feet above the water line and rated at 15,000 candle power (1,000 watts). Flashed every 3 seconds at night, visible for 12 miles on a clear night. |
Fog Horn: |
Dual air diaphones, switchable to single horn with a range of 5 miles, which would sound a three second blast every 30 seconds whenever visibility was less than two miles. |
Radio Beacon (transmitter): |
25 mile range, which was synchronized with the fog horn (when in operation) so ships equipped with a radio direction finder could calculate the distance to the ship in obscure conditions. |
Radar: |
RCA surface unit installed 1943 with a range of 15 miles. |
Anchors: |
7,000 pound mushroom type main, and 3,000 pounds auxiliary anchor. |
Crew: |
14 men served 2 weeks on and one week off. |
Fuel Capacity: |
12,400 gallons of diesel in 10 fuel tanks. |
Fresh Water Capacity: |
6,500 gallons in 4 fresh water tanks. |
Ballast Tanks: |
4 each with a total capacity of 10,000 gallons sea water. |
Station Assignments: |
1938 - 1957: Cornfield Point (CT) |