| 摘要 |
PURPOSE:To realize speedy movement of a hull by forming, in a stern part of each catamaran hull, a water drawing part which communicates with an injection propelling device through an opening port separately from a water running passage leading from the middle of the catamaran hulls to the injection propelling device via dust catching device. CONSTITUTION:Separately from a water running passage which takes in water from the bow part 40, and leads to an injection propelling device 27 in the stern via a dust catching device, a water drawing part which communicates with said device 27 through opening ports 32a, 32b, 33a, 33b freely opening/ closing to/from a stern part of each catamaran hull, is formed between left and right catamaran hulls 25a. In case of performing duct catching, seawater taken in from the bow part 40 is cleared of the dust via the dust catching device and at the same time, propulsion of the captioned ship is made by said injection propelling device 27 in the stern. In case of speedy sailing of said ship, each opening port 32a, 32b, 33a, 33b on the stern of the catamaran hulls is opened and the seawater intake to said device 27 is augmented.
|
