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91 sq ft. Racing. D-PN. 95.4. [ edit on Wikidata] The Force 5 is a small one-design racing sailboat that is similar to the more well known Laser but with a hard chine aft. Although it is designed for single-handed racing, two people can easily fit into the large cockpit. The boats are currently built in Long Island, New York by Weeks Yacht Yard ...
A laser-pushed lightsail is a thin reflective sail similar to a solar sail, in which the sail is being pushed by a laser, rather than the sun. The advantage of lightsail propulsion is that the vehicle does not carry either the energy source or the reaction mass for propulsion, and hence the limitations of the Tsiolkovsky rocket equation to ...
The Banshee is a recreational sailboat, built predominantly of fiberglass, with foam flotation, making the boat unsinkable. It has an unstayed catboat rig, with aluminum spars, including a non-rotating mast, a loose-footed, four-batten mainsail, a spooned raked stem, a vertical transom, a transom-hung, kick-up rudder controlled by a tiller and ...
LightSail is a follow-on project to Cosmos 1 — a solar-sail spacecraft designed by The Planetary Society in the early 2000s, which was destroyed during a launch failure in 2005. Both LightSail spacecraft measured 30 cm × 10 cm × 10 cm (11.8 in × 3.9 in × 3.9 in) (3U CubeSat) in their stowed configuration. After sail deployment, the total ...
Forces on sails. Aerodynamic force components for two points of sail. Left-hand boat: Down wind with stalled airfow— predominant drag component propels the boat with little heeling moment. Right-hand boat: Up wind (close-hauled) with attached airflow—predominant lift component both propels the boat and contributes to heel.
High-performance sailing. High-performance sailing is achieved with low forward surface resistance—encountered by catamarans, sailing hydrofoils, iceboats or land sailing craft—as the sailing craft obtains motive power with its sails or aerofoils at speeds that are often faster than the wind on both upwind and downwind points of sail ...