268. What constitutes sailing.

It can be important to know what constitutes the commencement of the voyage, since a failure to begin the voyage on time is a breach of contract for which the shipowner is responsible, unless excused by an exception1. The point is also important in connection with the payment of advance freight2, which is on occasion made payable on the final sailing of the ship from her port of loading3 or so many days afterwards4 because, if she is lost after the completion of the loading but before she has finally sailed, the shipowner will not be entitled to recover