HREKO

Cruising sailboat (bilge keel)
HREKO 1000 HREKO

- 9.98m 32' 9"ft HREKO has wind, diesel fuel and electric powered drive while the concept is of a hybrid between a performance sailboat hull, a catamaran and a RIB (Rigid Inflatable Boat). Combining underwater catamaran-like tanks/floats with RIB like floats/tanks above water, on a light performance hull made of composite materials allows HREKO to be twice as light but have superior initial stability compared to a centreboard keel cruiser of the same size.

A RIB type of dinghy that slides in the stern like a bayonet is a structural part of the hull during sailing. It extends the water line considerably, allowing a 10 m boat to have some characteristics of a 40-footer. Longitudinal "RIB" floats are in fact water ballast tanks lined with 10 cm thick polyethylene sponge. As it covers a significant portion of the hull, it renders the fenders useless and provides additional sound and thermal isolation. Two long but low keels allow for easier transport and maintenance on land. This also makes it suitable for shores of Western Europe where there are large tide fluctuations.

One of distinguishing features on the boat is an adjustable traverse bipod mast (typically made of carbon) that is positioned halfway to improve downwind sailing. There is a specially designed convertible headsail that consists of two collapsed genoas with an insert in-between.

There are 8 m2 of solar panels of which 6 m2 are under direct sunlight when the boat is turned sideways to the sun. Three wind turbines achieve energy autonomy of the boat, each offering 350 W of potential power supply. Apart from wind, the drive system consists of a 10 kW diesel generator and two 5kW electric motors.
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