ECO75Ppage

ECO 75 P

Ower

The ECO75 is the next plywood/glass fiber/epoxy composite in my ECO power line. It is a lightweight, economical, and low-maintenance vessel.
The catamaran features medium-speed hulls with good seaworthiness, a unique front cockpit*, standing-height hull interiors, and a bridge deck saloon with comfortable seating. It can reach around 25 knots with a 40 HP engine, or 18 knots at half power, emphasizing efficient operation and easy handling.
Designed for amateur and professionals builders. Anybody who has basic tools and experience in wood building can built this boat. No new skills have to be learned, or special machines have to be obtained, as with any other system.
The boat was build in many countries and in different versions. From day charter boat in Tahiti. Or as solar power boats, or luxurious like the boat in Thailand.
Plans include technical drawings and a construction manual available in PDF and DXF formats.

*I designed the boat 2008. It was the first catamarans with front cockpits.

ECO75 solar electric

The boat in Tahiti

Specifications
L.o.a.-                                   7.50 m
Beam-                                   3.22 m
Weight empty-                       800 kg
Weight max. CWL-             1400 kg
Outboard engine-               20-40 hp
Speed-                              18-25 knots

1 Forward cockpit6 locker11 berth
2 Anchor7 pantry12 settee/double berth
3 bench8 steering position13 bath room
4 entrance to cockpit9 cockpit lockers14 hanging locker
5 steps10 cockpit15 steps

Some interior pictures. The interior can be changed to your linking as long as the bulkheads distances are not changed. Not to disturb the integrity of the design. The pictures are from boats of different countries. For instance, the boat on the right was build with a bigger forward cockpit.

The hulls of the catamaran are a typical V-hull construction with some modifications on 7 bulkheads the chine stringer sheer string and 2 medium stringers, picture 1. The hulls are build upside as shown in figure 2 down. The plans, respectively, manual explains how to do that. After adding the stringers, the hulls are planked with 8 mm plywood. We pre-impregnate the plywood panels flat on a surface and pre-sand them. These safes hundreds of hours later. See the quick way how we do this in this video (click) . To impregnate a panel is a question of minutes. We finish a hull including fiber glassing and painting before we turn a hull. Adding the bridge deck and deck is the basic work of the boat. The accommodation can be simple or elaborated, is up to you. The drawings are by the way DXF CAD drawings to scale or 1 : 10.

For more info order a study plan. He contains the list of materials to calculate the material cost,.

Study plans US $ 15,-

Plan, drawings in DXF file format, the construction manual and the right to buid one boat.

Plan US $ 310