superboots
Well-Known Member
I'm planning to make a hoist for my 3m rib ( about 80kgs) The jib will be attached to a service mast fixed to front of the sugar scoop. It will be 1.6m long and will have a T track bolted underneath to take a sliding car as the dinghy will hoisted side onto the transom. I have some ideas how to stabilise sideway rotation but this will not add as support for the lifting load. The jib will be fixed in the horizontal plane with clearance for the dinghy which is underneath the jib . A rope from a winch on the lower part of the service mast will run along the jib and be attached to the outer hull of the dinghy. The dinghy will be lifted out of the water and rotated 120 degrees (rather than just 90 degrees hence the need for the track) where it can be secured. Question is what diameter of stainless steel pipe and wall thickness should I use to avoid bending of the jib - would aluminium be an option? There is a possibility to provide a triangulated strut from above for additional support but would prefer not to.
