Hull displacement weight

[ooootis]

hey gals & guys. Been looking around @ weight of certain boats and the most that I have seen refer to displacement weight. Anyone have an equation that would reverse the process to figure out a close approx. of what the boat weighs without going to the scales. Is the the displacemnt in LBS or Gallons. My bet is weight.

 

[Drowned Rat]

Re: Hull displacement weight

The boat's displacement weight is the boat's weight. The term comes from how much water weight the hull displaces.

 

[mattttt25]

Re: Hull displacement weight

displacement weight IS the weight of the boat. it is usually listed in lbs here in the u.s.<br /><br />to float, an object needs to displace an equal amount of water, in weight.<br /><br />remember to add weight for gear, fuel, people, and engine when doing calcs for towing purposes or engine selection.

 

[ooootis]

Re: Hull displacement weight

well that was all most a no brainer of a question. thanks all. I was just curiuos because mine boat weights more than the displacement value advertised. i recon twin outboards are not included and the advertised is the dry weight??

 

[rogerwa]

Re: Hull displacement weight

This taken from: http://www.docksidereports.com/boat_specifications.htm <br /><br />Weight -vs- Displacement<br /><br />The weight of the vessel as could be measured on a scale versus the calculated displacement are not quite the same, though the difference is not enough to concern boat owners. Displacement is the volume of water that is displaced by the hull of the vessel measured in pounds or tons. This derives from a math calculation made by naval architects during the design process. No one actually ever physically measures the displacement of a hull as that is far too costly to do. Displacement as a representation of boat weight is no longer used by pleasure craft builders, though it is always used for ships.<br /><br />So where does the builder weight come from? Commonly stated as "dry weight," it normally means the weight of the boat without any fluids in tanks. Since most builders end up having to ship boats, which requires obtaining an actual measured weight, builders typically ship the boat off to a truck weigh station where the weight is there taken less the weight of the trailer. These weigh stations, operated by federal or state governments, are actually quite accurate to within 100 lbs. The scales are tested and certified annually.