Thunder Child II, when an extreme boat meets big waves

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When a boat that can’t be overturned (or rather, if it does, then goes straight back on its own) meets stormy waves the challenge is all to be seen. In this video you can see the Thunder Child II, a project by Safehaven Marine, as it challenges rough sea during Storm Brendan. What better test for this record-breaking motorboat?

Here is the video

 

Thunder Child II, born to break records

XSV20 is characterized by an extremely innovative hull design that merges an asymmetric catamaran (aft) with a single hull able to cross the waves with a result: catamaran stability in both pitch and roll, top speed as a single hull.

Courtesy of Safehaven Marine

This boat had already proven to have super seakeeping performance during a series of tests along the Atlantic coast off Ireland with waves of up to 5 metres. After the first launch the boat was back in the yard for the installation of the Hysucraft foiling system.

Courtesy of Safehaven Marine

The record in 2020

The bow is able to cut waves like a knife blade, while aft it splits into two hulls for stability. Catamaran or monohull? Safehaven Marine’s Thunder Child II was born to run on thin ice, concentrating the avant-garde of yacht design and breaking an oceanic record recognized by the International Motorboat Union: cross the Atlantic at full speed, from Canada to Ireland, following the shortest but harder course north through ice and storms. This twenty-three meters then will probably sail in July 2020.

Engines

In addition to the breathtaking design of the Thunder Child II, the engines are impressive: four Caterpillar C8.7 engines with 650 horsepower each, chosen for their power-to-weight ratio, four ZF 325ATS double speed gearboxes and four France Helices SDS3L surface mount transmissions. The top speed is 50 knots, a cruising speed of over 40 knots and can sail for over 800 miles at 30 knots and 1,000 nautical miles at 12 knots.

The boat has been designed specifically for long-range ocean cruises and will accommodate a crew of 6 people with 6 berths in 4 cabins, a galley, and two head compartments. Large long-range fuel capacity is provided by a 7,000-litre main tank.

www.safehavenmarine.com.

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