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470 Deck Layout

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.




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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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.

International 470 Class
Harken Canvas


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