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2. Aerodynamically alleviated marine vehicle - Wikipedia

   en.wikipedia.org/wiki/Aerodynamically_alleviated...

   These race boats immediately demonstrated to have better performances with respect to the conventional monohull race boats and a new race boat class was created. The advantages of this new configuration come from the aerodynamic lift. The additional aerodynamic lift can be equal to the 30-80% of the total weight of the marine vehicle.

3. Travel lift - Wikipedia

   en.wikipedia.org/wiki/Travel_lift

   A small motor-boat lifted from the water by a travel lift at La Rochelle, France, 2016. A travel lift or travelift (also called a boat hoist, boat gantry crane, or boat crane) is a specialised type of crane used for lifting boats out of the water and transporting them around docks or marinas. [1] These cranes allow boats with masts or tall ...

4. Topping lift - Wikipedia

   en.wikipedia.org/wiki/Topping_lift

   Topping lift. The topping lift (more rarely known as an uphaul) is a line which applies upward force on a boom on a sailboat . Part of the running rigging, topping lifts are primarily used to hold a boom up when the sail is lowered. [ 1] This line would run from near the free end of the boom (s) forward to the top of the mast.

5. Shiplift - Wikipedia

   en.wikipedia.org/wiki/Shiplift

   Shiplift. A shiplift is a modern alternative for a slipway, a floating dry dock or a graving dry dock. A shiplift is used to dry dock and launch ships. It consists of a structural platform that is lifted and lowered exactly vertically, synchronously by a number of hoists. First, the platform is lowered underwater, then the ship is floated above ...

6. Forces on sails - Wikipedia

   en.wikipedia.org/wiki/Forces_on_sails

   Right-hand boat: Up wind (close-hauled) with attached airflow—predominant lift component both propels the boat and contributes to heel. Points of sail (and predominant sail force component for a displacement sailboat). A. Luffing (no propulsive force) — 0-30°. B. Close-Hauled (lift)— 30-50°. C. Beam Reach (lift)— 90°.

7. List of boat lifts - Wikipedia

   en.wikipedia.org/wiki/List_of_boat_lifts

   Geheyan dam boat lift, also in Hubei Province, capable of lifting vessels of 300 tons displacement. The dam was completed in 1994, but technical difficulties delayed the opening of the ship lift for four more years. Longtan dam boat lift, capacity to lift vessels of 250 tons, in a basin 40×10.8×1.8 meters, and a vertical lift of 68.5 meters.