7. Freight.—
(a) Dead Freight.—
In case the charter party provides for the shipment of a full cargo by the charterer and compensation to the owner of the ship is payable per unit of cargo, the shipowner will be entitled to recover from the charterer the amount of freight which would have been payable by so much cargo as could have occupied the space left vacant. This is called dead freight.
On the other hand cases arise in which the owner has to pay dead freight to the charterers. This occurs where the compensation for the ship is a lump sum and the owner fails to load a full cargo.
(b) When Freight is Earned.—
Freight is earned when the goods have been carried to their destination and not until then. If it be paid in advance and the goods do not arrive at destination it must be refunded. Of course, the parties may by their express stipulations in charter parties, bills of lading and other forms of agreement change these rules, and frequently do so. For example it is sometimes provided that prepaid freight shall be considered earned on the shipment of the goods, or if the ship be lost the freight shall not be refunded. Such bargains are, of course, entirely legal and will be enforced by the courts according to their tenor.
Charters sometimes provide for the carrying of cargo out and back. Here the terms of the contract with reference to the outbound and homeward-bound voyage are inseparable. No freight is earned until the ship returns with the homeward-bound cargo. But if the contract can be construed so as to regard each voyage separately, the freight for the outbound voyage will be earned at destination whether the ship returns with cargo or not.