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An asymmetric spinnaker is particularly effective on fast planing dinghies and ultra-light displacement boats as their speed generates an apparent wind on the bow allowing them to sail more directly downwind. An asymmetric spinnaker can also be a simpler sail for a cruiser or short-handed sailer than a symmetric one. [7]
J/80 flying its asymmetrical spinnaker. The J/80 is a racing keelboat, with the hull built predominantly of fiberglass. It has a fractional sloop rig with a retractable bowsprit controlled from the cockpit by a deployment line. The hull has a raked stem, a plumb transom, a transom-hung rudder controlled by a tiller and a fixed swept fin keel ...
It was the first production boat featuring a retractable bowsprit, which allows for an unusually large asymmetrical spinnaker. [2] It was introduced in 1991 by J/Boats and designed by Rod Johnstone. [3] J/105s are a common sight in one design racing [4] and to date, J/Boats has built 685 J/105s. [5]
For sailing downwind the design may be equipped with an asymmetrical spinnaker of 1,399 sq ft (130.0 m 2), flown from the retractable bowsprit. [ 1 ] [ 2 ] [ 5 ] The design has a hull speed of 7.66 kn (14.19 km/h).
The rig features a fractional asymmetrical spinnaker; a self-tacking jib decreases the work load of the crew, making maneuvers more efficient and freeing the crew to take the mainsheet upwind and on two-sail reaches. The spinnaker rigging set-up challenges crews to be fit and coordinated, and maneuvers in the boat require athleticism due to its ...
The sail plan consists of a Bermuda rig with a main, jib, and symmetrical spinnaker. The boat uses a retractable centreboard. An optional asymmetric spinnaker and spinnaker chute is available; also available is a "sail patch" which provides flotation for the mast in the event of a capsize (and particularly to prevent mast inversion – Turtling ...
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The 49er carries three sails: a mainsail, jib, and spinnaker. The main and jib combined are 20 square metres, fully battened and made of reinforced Mylar (film polyester). The main was redesigned in 2007 from a full, curved roach plan to having a square on top in order to provide more sail area and to control more shape adjustment.