JDM
Member
Does anyone have a gouge on how to figure how much weight a deck crane can handle? I have a Hyatt Fantail 50 and there is not a lot of data available on this model since only 11 were imported to the US and that was twenty years ago.
I'm going to guess he meant "Davit Crane"?..... and is looking for a gauge on the working and max limits of the crane.
The make and model of the crane would be needed to answer that question.
Or maybe David knows!
Here is a spec’ chart for Nick Jackson aluminum pipe davits that may help for some comparison. Column to the far left is capacity in pounds. Be aware that the 300 and 500 models do not have backbone reinforcements.
I also looked at the three boats on Yachtworld and enlarged this photograph of the only unit clearly visible. The unit in the photo looks very close in size and design to another one I have for sale, rated by the builder at 600 lbs.. My unit is of 3.5” aluminum construction and is designed to use a 2.5” solid bar aluminum standpipe. If the one you are asking about is the same as in the photo, it could also be of stainless steel construction instead of aluminum, making it stronger still. Nick Jackson also makes a similar pipe style crane.
Thanks, very useful. Your photo is actually of a sister ship to mine. We have a beefier crane-3 1/2 diameter steel with exoskeleton at curve. I’m hoping to raise and lower a 650 lb RIB. Thinking I’ll use a pulley block, at least initially, to spread the load and not stress the winch motor as much..