[en] On-load release mechanisms designed to permit the release of the davit-launched lifeboat from fall wires when ship is still making way through the water or in rough sea. (There is a common misconception that the on-load release system is to allow a lifeboat to be release while suspended from the fall wires. This is very dangerous practice, which can result in serious spinal injuries to persons on board and significant damage to the boat.) (Wartsila, Encyclopedia of Marine and Energy technology)