DURING the year 1924-25, the engineering competition was extended to include all auxiliary vessels in regular commission, 123 vessels being added. With the exception of vessels of the gunboat class, all vessels in previous competition classes have been of a more or less uniform military type with corresponding similarity of duty. In the gunboat class a similarity of duty existed without similarity of type. The arrangement of auxiliary vessels into classes presented many difficulties, due to the wide variation in type and duty performed. A vessel doing the duties of a tender, for example, uses considerably more fuel than a sister ship acting as a supply vessel. It was not practical to class these vessels according to type, and the grouping was therefore based upon duties performed. The original assignment to duties involves similarity of type to some extent.
Engineering Economy on Auxiliary Vessels
By Commander R. R. Smith, U. S. Navy