Hooking on For the Future
The second generation of hooks has also been retrofitted for some owners, such as Celebrity Cruises.
Schat-Harding Freefall boats and KISS boats both have new hook designs based on the locked pipe system. In this system the tail of the hook is held in the locked position within a 3 - 5 cm deep steel pipe. It is clearly visible and can only be released by a 110 degree turn of the operating lever. Conventional davit-launched boats are now fitted with variants of Schat-Harding’s LHR hook range, based on a wearless cam system. The tail of the hook engages with the cam in the locking shaft when the shaft is in the locked position, and has 3 cm of contact area. When the on-load release is activated by rotating the locking shaft a roller in the tail of the hook contacts with the cam area, ensuring no need for tolerances and no wear on the assembly. This hook does not depend on close tolerances either during manufacture or use, and is also visibly safe because the open/close indicator is external and is integral to the locking shaft.