plan Boat

Design 2752 48 Modern Classic

Heres an exciting project right out of the box, on her shake down sail. Designed for an unnamed client, here are some interesting points about this design:

~ The hull and deck are 100% carbon fiber - hull is infused and the deck is of pre-preg construction.
~ Carbon rig is by Hall Spars.
~ Sails are by North.
~ The headsail is hydraulically furled. The main halyard is handled by a captive winch at the base of the mast, also hydraulic. The main sheet is controlled by a hydraulic cylinder under the deck. The only sheets handled manually are the various headsails including the cruising jib (103% LP), racing genoa (135% LP) and cruising gennaker as can be seen in the above image.
~ The boat is equipped with hydraulic in-boom furling.
~ The propulsion system consists of a custom hydraulic rotational sail drive that is controlled in tandem with the bow thruster by a proportional joy stick. The boat can turn 360° while standing in place.
~ The battery bank is lithium ion.
~ Interior is butternut with raised and fielded panels.
~ Every detail onboard is custom designed and fabricated from the pedestal, engine panel, hydraulic panel, retractable anchor arm, portlights, chocks, hand grabs, bow light, stern light, scupper plates and so forth to the interior woodwork.
~ The boat is fast.


The steering pedestal is of special interest. We placed the wheel forward of the pedestal so one doesnt have to reach through the spokes to use the navigation and propulsion controls. In addition to being practical the effect is stunning. Heres a computer rendering.


Heres a 3D rendering of the interior. As good as this rendering looks the interior looks even better in real life.


Heres a schematic explaining the propulsion system. In simple terms an auxiliary diesel engine powers a hydraulic pump which is close coupled to the engine which in turn powers the thruster, sail drive and main halyard winch. In silent mode the battery bank powers a DC power pack which in turn powers the sailing hydraulics. The system is designed for extensive silent running. A small generator is used to charge the batteries. (Double click for bigger view).