delivered the opinion of the Court.
On September 30, 1920, the dredge Raritan, belonging to the United States, collided in New York harbor with the steam tug Integrity, belonging to the petitioner. A libel in admiralty to recover the damages to the tug was filed by the petitioner in conformity with an act of Congress whereby the United States consented to be sued. Act of February 16, 1925; c. 241, 43 Stat. 1566. A cross-libel for damages to the dredge was filed by the government. The trial court held both vessels at fault, and determined that the damages to each should be equally apportioned between the owners. A Special Commissioner was appointed to ascertain the damages and report.
The petitioner was in the business of towing car-floats for railroads between points in New York harbor. It did not use its boats for hire generally. Its business was sufficient to occupy three tugs during regular working hours in the transfer of railroad cars from one point to another. When the Integrity was laid up, the petitioner did not hire an extra tug as a substitute for the one disabled. Instead, it used its two other tugs overtime, and thus kept down the cost while doing business as before. The same crews were employed; but if extra wages were paid, the amount has not been proved. Extra wear and tear there may have been; but there is nothing in the record to indicate how much. Indeed, the witness for the petitioner frankly stated that the loss, if any, from that cause was too uncertain to be measured. The award for demur-rage allowed by the District Court and disallowed by the Court of Appeals was not made upon the basis of depreciation of the boats in use. It is measured by expenses that in fact never were incurred, but that might have been incurred and charged to the respondent if the necessities of the business had been something other than they were.
Our decision may not overleap the limitations of the record. To dispose of the case before us we do not need to hold that through the use of the other vessels the pos
Erroneous and extravagant we think it must be held to be.
The Conqueror,
The doctrine of the
“
spare boat ” cases is invoked by the petitioner as decisive in its favor, but we think without avail. Shipowners at times maintain an extra or spare boat which is kept in reserve for the purpose of being utilized as a substitute in the contingency of damage to other vessels of the fleet. There are decisions to the effect that in such conditions the value of the use of a boat thus specially reserved may be part of the demur-
So here. The petitioner was engaged in an established business using tugs for a single purpose. It had no thought to turn that business into one of a different kind while this tug was out of service. Mindful of the need to minimize the damages, it used to the full its available resources, and was able by special effort to make them do the work. We are unable to accept the argument that the expenses which it'saved are to be charged to the respondent as if they had not been saved at all.
The judgment of the Circuit Court of Appeals which modified the judgment of the District Court is accordingly
Affirmed.
