| 摘要 |
Abstract A boat lifting method and apparatus 10 for lifting a boat above the waterline. 5 The apparatus comprises a pair of floatation bodies 12 having sufficient buoyancy when filled with air to support a boat 14 above the waterline, and being adapted to be submerged below the waterline when substantially filled with water. The boat lifting apparatus 10 also comprises a support cradle 16 mounted on the floatation bodies 12 for supporting the boat 14 above the 10 waterline when the floatation bodies 12 are filled with air. A buoyancy control means 18 controls the filling of the floatation bodies with air or water as required. Each floatation body 12 comprises a front buoyancy chamber 20 and a rear buoyancy chamber 22 separated by a baffle 24, the front and rear chambers being in fluid communication with each other wherein, to lift the 15 boat in use, the buoyancy control means 18 fills the rear chamber 22 with air first such that the stern of the boat 14 is first lifted above the water line, then the bow of the boat 14 as the front chamber 20 also subsequently fills with air. 20 Drawing to Accompany Abstract: Figure 1 Cle |
