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70' Flush Deck Sloop Sonny

click photo to enlarge

PRINCIPAL DIMENSIONS

LOA    69'-10"
DWL   58"
Beam   16'- 6"
Draft    8'
Displacement at DWL
  76,750 lbs.
Ballast   28,000 lbs.
Fresh Water Capacity   430 gal
Fuel Oil Capacity   550 gal
Sail Area Main   1,023 sq.ft.
100% fore triangle   1,147.5 sq.ft.

DESIGNER'S COMMENTS

It was a sign of confidence in Dieter Empacher Designs when a New England yachtsman placed an order with them for a 70' cruising yacht design. Five years earlier, the same client had commissioned DED to design a 57' custom sloop, which was built by Bristol Yacht Company in Rhode Island. While searching for the right builder for this new 70' yacht to be constructed of aluminum, the client saw "Wild Horses", the last design of Naval Architect Joel White which was built at Brooklin Boat Yard in Maine, a yard well known for their quality wood construction. Steve White, President of BBY and son of Joel White, convinced the client that his boatyard would be the proper choice for construction of this yacht. All aluminum construction detail drawings were changed to wood construction. To ensure correct lay-up schedule for the cold molded hull, BBY consulted with Gougeon Brothers Company for proper panel strength and stiffness. The sandwich constructed deck has a foam core.

This new Dieter Empacher design is a medium displacement yacht with an 8' draft wing keel. The classic profile has a stylish transom design that incorporates a hidden swim platform. The semi-flush deck with a low cabin profile is reminiscent of a racing yacht where the foredeck is kept clean for easy sail handling or comfortable lounging. Sail-handling technology has advanced to such a level that this 70' yacht can be sailed with a limited crew. The yacht is equipped with a roller furling hydraulic headsail system and the latest in technology in-boom roller furling system.

The underbody design combines performance and cruising comfort. The carbon fiber spade rudder design with counterbalance provides the best steering control under all conditions. The keel, designed with the maximum lift to drag ratio, features winglets for greater stability without sacrificing motion comfort. The length of the root chord gives excellent tracking stability. This mini megayacht was tailored for the owner, who is an enthusiastic cruising yachtsman who loves to go fast.

The yacht's interior distinctively incorporates luxury. The owner's stateroom is pure elegance and the lavish main salon is designed for spacious living and dining. Two double guest staterooms and a captain's cabin round out the comfortable layout.



Half Model of Yacht Sonny



(letter about Design # 9887 from Arthur Beiser,
author of The Proper Yacht)


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