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Dynayacht Schock 40

Build year:  2004

Kappeln / Nordhafen, Germany

Sailingboat for sale

39,000 EUR

  • Alc-Yachting GmbH
  • Am Hafen 23b
  • 24376 Kappeln
  • Germany
  • +49 (0)4642965959
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Description

We have attached the test report in the appendix, which describes the boat perfectly: Schock 40, Test Report by Peter Danjou, 29.10.2001 One of the best things about testing new boats is being able to closely examine the innovations that drive the design of racing boats forward. But rarely can we report on radical concepts that work so well that we want to shout their benefits from the rooftops. Well, put in your earplugs, because the Schock 40 is here. It has been 12 years since Tom Blackaller built a 12-meter yacht with fore and aft foils. The Twin-Foil technology used in 1987 was an idea by Charles Robinson, the president of DynaYachts. It was further developed by the Dyna-Yachts design team led by Matt Brown and Bill Burns on the prototype Red Hornet. The patented Canting Ballast-Twin-Foil system is now integrated into the 40-foot production sportboat. The arrangement of the two foils is the only innovation. A swing ballast system reduces the ballast requirement by 60 percent, and the boat's displacement is only 7,000 pounds. The ballast bulb can be tilted 55 degrees to both sides, and with a push of a button, you can fully reverse the system in nine seconds. To avoid misunderstandings: this is not a swing keel, but a swing ballast bulb. The stainless steel fin supports the ball that provides the righting moment. The twin rudders provide lift and prevent leeway. When sailing downwind during a race, I was somewhat surprised by how the boat responded. The two rudders are interconnected and work around the boat's pivot point in opposite directions. I had expected that this would make the boat turn faster, but it steered positively and responsively without being overly sensitive. The rudders are mounted on stainless steel posts, covered with a composite casing, and supported by Harken rudder bearings. The tiller and rudders are connected through an Edson steering system. The key is that unlike Blackaller's system, which had two independent steering systems, the rudders work synchronously. The high-profile foils were wind tunnel tested and feature a unique adjustment called the "Collective," which can change the angle of attack of the foils by up to seven degrees without moving the tiller. For those concerned about sailing with an exposed forward rudder, Dyna Yacht explains that the rudders are constructed to ABS standards with false tips (on the lower 20 percent) and housed in a crash box. The hull itself has been reinforced in this area by 30 percent. According to Co-Designer Brown, the technological advantage of the twin foils goes beyond advanced control and preventing side slip. Looking at the resistance models of a typical sailboat, you can see a high-pressure area ahead of the keel. The front foil element dampens this bow wave effect. The swing ballast system uses a hydraulic cylinder driven by an electric motor to position the ballast. Through cockpit buttons, the helmsman can adjust the ballast to balance the boat, and a display mounted in the cabin shows the exact angle of the ballast. The electric motor and servo mechanism are powered by a series of 6-volt batteries separated from the 12-volt onboard system, providing power for 48 hours without the need for recharging. If needed, the shaft can be manually pumped into the correct position. The hydraulic unit is hidden behind the navigation station, which can be swung out for easy access, and the battery bank is located on the opposite side to keep the boat balanced. Two large transverse frames extend to the deck height and support the ballast mechanism between them. According to Schock, the composite hull construction was made to ABS standards using vinylester resin and woven E-glass fibers over a 1-inch thick PVC foam core, with balsa wood reinforcing high-stress areas. The chain plates are constructed in a monocoque design and bonded to the hull/deck flange. The toe rail is only cast into the deck forward of the mast; the entire deck is bonded to the hull flange. The Schock 40 features a beautiful but spartan interior, including a fully enclosed head. A wide, stainless steel two-step companionway provides easy access to the cabin. The midship benches double as berths with storage underneath. The cabin is spacious, offering standing headroom, and the six smoke-colored side windows provide ample light. A hanging locker and storage compartments offer plenty of space for the crew's gear. Stainless steel tubes serving as conduits for the internal mainsheet system also act as handrails. The large cockpit was developed with the involvement of America's Cup veteran Peter Isler (and also as an editor at Sailing World for completeness). Isler says, "I tested the prototype, the Red Hornet, for two years. The Schock 40 is incredibly fast, easy to sail, and fun. You feel like David fighting Goliath - that's how fast the boat is." In addition to Isler's contribution to the layout, his Red Hornet campaign (see Speed by Design, Dec. 97/Jan. 98) established the PHRF rating basis for boats nationwide. With the sixth production hull, a one-design class could develop. So far, buoy racing with boats with canting ballast has not been very realistic, as moving the ballast during e

Specifications

Materiale / unit

Hull type

Fibreglass

Length

12.19

Beam

3.05

Deplacement

3175

Depth

2.44

Motor & technic

Engine

Honda

Total power

15

Engine count

1

Engine place

Outboard

Fuel

Gasolin