Class History

The International 470, designed in 1963 by 505 sailor André Cornu, is a high-performance planing dinghy for both men and women. Responsive to weight placement, this two-person one-design is tactically demanding and requires fluid coordination between the skipper and crew. The 470 is easy to sail, but racing and flying the spinnaker from the trapeze provides additional challenges for sailors. The 470 made its Olympic debut in 1976, and in 1988 was selected for the Games first women's sailing event. 470-sailplan.gif

Boat Specifications

Length: 4.7 m, 15 ft 5 in
Weight: 120 kg, 264 lbs
Sail Area: 12.7 sq m, 137 sq ft
Jib: 3.58 sq m, 39 sq ft
Main: 9.12 sq m, 98 sq ft
Spinnaker: 13 sq m, 140 sq ft



470 Deck LayoutLow Profile Stainless Steel Strap-20116 mm Fixed Triple-40816 mm Fixed Double w/Becket-407Stainless Steel Eyestrap-073Micro Cheek Block-233Micro Cheek Block-233Low Profile Stainless Steel Strap-201Thru-Deck Bullet Block-088Micro Cam-Matic w/ X-Treme Fairlead kit-470Stainless Steel Eyestrap-073Anti Capsize Micro Block-4431.2 Meter Micro Track - 2707.1.2M16 mm Pivot Cheek-43240 mm Carbo Fixed-2650Cam-Matic Cam Cleat-15016 mm Single Pivot Cheek Block-432Micro Block and Eyestrap Assembly-443Micro Cam w/ X-Treme Angle Fairlead - 470Micro Traveler CB Car - 270029 mm Fixed  Stand-up - 349

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Spinnaker Pump Halyard System

A 1:2 reverse purchase on the halyard allows the skipper to raise the spinnaker twice as fast. Pulling the pump handle .6 m (2 ft) off the cockpit floor raises the spinnaker 1.2 m (4 ft). A 1:5 shock-cord halyard take-up system automatically manages accumulating line during the rapid chute deployment.

470 Mainsheetstainless steel eyestrap-073Stainless Steel Eyestrap-07340 mm Fixed Carbo-265049 mm Fixed Carbo-2650Micro Cam-Matic w/X-treme Fairlead Kit-47016 mm Single Thru-Deck-42116 mm Fixed Double-40616 mm Fixed Single-40429 mm Carbo Swivel-34016 mm  Fixed Triple - 408

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The cascaded vang uses super strong single, double, and triple 16 mm blocks for a powerful 16:1 mechanical advantage. The skipper can play the vang from either side of the boat.

Two-Car Mainsheet

This fast-tacking two-car system halves the distance a single car would travel. The bridle and the 2:1 side-to-side traveler controls raise and lower the floating mainsheet block for perfect mainsail twist. Mainsheet tension tightens the leech and reduces twist.

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