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SUPER 46': OTTER

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The 46’9”x17’1”x4’11” vessel displacing 20 tons can carry up to 78 passengers and two crew and serves as the Isle au Haut mailboat. Built of solid fiberglass laminate, OTTER is Subchapter T certified by the Coast Guard.
Propulsion comes from a C18 Caterpillar diesel developing 803 hp at 2,100 rpm, turning a 32” left-handed 5-blade Nibral propeller on a 3” double taper Aquamet shaft, through a ZF 500 gear with 1.964:1 ratio.
In sea trials the setup yielded 24.2 knots at 2,070 rpm.
Fuel capacity is around 700 gal. in two 350 gal. fiberglass tanks, with two 25 gal. poly tanks for potable water. .