Former Royal Navy patrol boat, type Fairmile motor launch, for rescuing pilots shot down over the North Sea during WWII. After the war this boat was transformed into a tour boat near the coast. Probably the last operational one in Europe. LOA: 35.00 m Beam: 6.00 m Draught: 1.80 m Grt: 124 tons Passenger capacity: 97 two GM engines 225 HP each, speed: 12 knots. More on Fairmile motor launches:
https://en.wikipedia.org/wiki/Fairmile_B_motor_launch