A portable wind-powered sailing vessel includes a plurality of parallel hulls, a plurality of cross-member spars releasably connecting the parallel hulls, a central longitudinal body centrally located between the parallel hulls and releasably connected to the plurality of cross-member spars, a crew seat releasably connected to the central longitudinal body forward of a mast, a kick-up rudder assembly and a foot pedal steering system both releasably connected to the longitudinal body, a rudder releasably connected to the kick-up rudder assembly, and a main sail on the mast, and a jib.

Pontoon structure for a boat includes an elongated pontoon with a bottom forming a water entrapment channel between a front end portion and a rear end portion of the pontoon, the bottom configuration causing the pontoon and the supported boat body to quickly rise above the water surface and plane.

A three hulled T configuration displacement power boat that reduces weight by minimizing the structural without sacrificing boat length. The weight is evenly distributed between three hulls and is aligned in a T formation so that the overall boat length would be about three times the hull length. The structure, cargo and passenger(s) are supported above the water as shown in FIG. 1.

A pontoon boat includes port and starboard pontoons and cross members connecting the pontoons. A shock absorber may be installed at each point of connection of the pontoons to the cross members. A cross member may be embodied as a double-webbed beam having first and second parallel flanges and first and second webs disposed between and connected to the flanges. Each pontoon may include a two-stage lifting strake having a first surface and a second surface inclined from the first surface.

A water surface transport means, comprising a bottom (1), boards (2), a deck (3), surge diversion grooves (4) and wave suppression diversion baffles (5), the surge diversion groove (4) being provided in a space between a bottom surface vertically recessed into the hull bottom (1) and the deck (3) and extending from the bow to the stern, with an arc-shaped transverse section and a top line of longitudinal section being lower in the front and higher in the rear; a top transverse section of the wave suppression diversion baffle (5) being arc-shaped and a top line of longitudinal section being lower in the front and higher in the rear. The water surface transport means can be configured as mono-hull, catamaran and trimaran.

Embodiments disclosed provide a pump assembly including a first pump for delivering at least one fluid. The first pump may include a first inlet coupled to the first pump for delivering at least one first fluid to the first pump, a second inlet coupled to the first pump for delivering at least one second fluid to the first pump, a first discharge coupled to the first pump for delivering the at least one first fluid at a first pressure, and a second discharge coupled to the first pump for delivering the at least one second fluid at a second pressure. In some embodiments, the first discharge and the second discharge are isolated from each other.