Patent classifications
B63B43/04
Method for controlling the trim of a transport ship without seawater ballast
The present invention concerns a method for controlling the trim of a transport ship without seawater ballast (1), having a width l considered along a transverse axis (yy) of the ship (1), said ship (1) having an unladen weight P.sub.v between 20% and 60% inclusive of its total weight P.sub.T, allowing for a given maximum load weight capacity P.sub.TC, in accordance with the formula:
P.sub.T=P.sub.v+P.sub.TC
at least one first and one second closed liquid tank (3 or 3) not communicating with the sea, the total weight P.sub.RT of which when entirely filled with a liquid of specific gravity equal to 1 represents between 2% and 8%, preferably between 3% and 6%, of said unladen weight P.sub.V, said tanks (3, 3) being in communication via at least one line to transfer liquid from one to the other and being at a distance d from one another, considering the respective geometric center of each of said tanks (3, 3), at least equal to when the tanks (3, 3) are positioned facing one another essentially along the transverse axis (yy): d.
Method for controlling the trim of a transport ship without seawater ballast
The present invention concerns a method for controlling the trim of a transport ship without seawater ballast (1), having a width l considered along a transverse axis (yy) of the ship (1), said ship (1) having an unladen weight P.sub.v between 20% and 60% inclusive of its total weight P.sub.T, allowing for a given maximum load weight capacity P.sub.TC, in accordance with the formula:
P.sub.T=P.sub.v+P.sub.TC
at least one first and one second closed liquid tank (3 or 3) not communicating with the sea, the total weight P.sub.RT of which when entirely filled with a liquid of specific gravity equal to 1 represents between 2% and 8%, preferably between 3% and 6%, of said unladen weight P.sub.V, said tanks (3, 3) being in communication via at least one line to transfer liquid from one to the other and being at a distance d from one another, considering the respective geometric center of each of said tanks (3, 3), at least equal to when the tanks (3, 3) are positioned facing one another essentially along the transverse axis (yy): d.