Thomas Fleming Day, On Yachts and Yacht Handling
“ As the tide makes keep heaving in the slack, letting your floating boat draw in sideways to the launch. This strain will aid the water in lifting, as the launch will have to rise with the floating boat. If the launch is very heavy or of scant beam, like the steam craft I mentioned, you had better use joists or spars to help the leverage.I once took a launch off a rock by this same plan, when hours of heaving on hawsers had failed to move her. Another plan is to lift a boat by lashing empty barrels to the side by passing slings under the keel. ”
