between the two possible components, the rates of hire and the rates
on account of shore establishment charges, fixing the rates of hire, or charter rates, on the basis of the fair value of the use of the vessels. On the other hand, it was open to the court, without separating these components, to award a rate for each vessel estimated as a fair return to the plaintiffs for the temporary taking by the Navy of their vessels, having regard to all the circumstances, including the employment made of them by the plaintiff: Cp. per Scott L.J., Horn v. Sunderland Corporation 1, in relation to land. This is another way of reaching the same result, or achieving the same pur- pose, the purpose of arriving at a recompense representing the value of the ship to the owner. Hutchins J., however, in the Supreme Court took a third course, one that appears to me inadmissible, or, at all events, one that, as a matter of general reasoning, is not likely to produce a sound result. He sought to ascertain over the period of seven years from 1936 to 1942 the average earnings of several ships employed by the plaintiff with the requisitioned ships in the same trade, or same class of trade, including, except for the period of requisition, the requisitioned ships. In estimating the average earnings, he did not deduct the costs of management, that is, in effect, the shore establishment charges, except for some not very important costs, shown in the accounts, which he thought would be saved.
The plaintiff traded from Hobart up and down the Derwent, the D'Entrecasteaux Channel, the Huon River and Storm Bay. It possessed fourteen small vessels, but three of them appear not to have been employed at any time really material, and one of them, the Melba, was chartered as a dredge. The Mongana is a small steamship of 98 tons built in 1905, and the Marana a somewhat similar ship of 108 tons built in 1908.
The learned judge took three other vessels besides these and adopted a figure as the average weekly earnings of a ship calculated from the earnings of the five vessels for a period of four years, ending 31st December 1939. The additional three vessels were the Cartela, a ship of 194 tons, the Excella, 174 tons, and the Dover, 115 tons. He took also a figure as the average weekly earnings of a ship based on the earnings of these three ships for the ensuing three years. He then averaged these two figures and, after the deduction of a small sum for savings in management charges, he treated the balance as representing a proper rate of recompense to the plaintiff for the compulsory hire of each of its two ships. The course SO pursued is open to many objections, but it is enough to
1(1941) 2 K.B. 26, at pp. 48, 49.