boat displacement and boat weight

[kashurst]

is displacement weight of a boat the same as its weight on dry land ????

 

[VicS]

Yes but the displacement quoted is usually just the basic boat before you add all the junk you normally have onboard.

Remember that old Greek guy (Archimedes, not Phil the Greek) who ran down the street b*ll*ck naked yelling "eureka" when he figured out why his bath overflowed when he got in it.

From Wikipedia:
"The word "displacement" arises from the basic physical law, discovered by Archimedes, that the weight of a floating object equates exactly to that of the water which would otherwise occupy the "hole in the water" displaced by the ship."

 

[davidej]

Thanks for that Vic

I always thought that eureka meant "b*gger it, where is the soap"

 

[Red]

The weight of the boat is equal to the amount of water it displaces - tonnage.

 

[Tranona]

The weight of the boat is equal to the amount of water it displaces - tonnage.

Strictly speaking, not "tonnage". This term refers to the measured carrying capacity of the ship for the purposes of registration (and using a precribed formula). It is nothing to do with weight or displacement, which can be expressed in "Pounds" "Kilograms" or tons/tonnes.

 

[gjgm]

Vic
is that right?
I thought it related to the amount of money displaced from your wallet?
Often simply related to @tonnes@

 

[jfm]

Strictly speaking, not "tonnage". This term refers to the measured carrying capacity of the ship for the purposes of registration (and using a precribed formula). It is nothing to do with weight or displacement, which can be expressed in "Pounds" "Kilograms" or tons/tonnes.

+1. Tonnage has nothing to do with weight.