Underwater Performance Characteristics of the MK 13-2A Torpedo with Suspension Fittings

This memorandum report covers a series of Water Tunnel tests of the Mk 13-2A Torpedo equipped with three different devices designed to facilitate the suspension of the torpedo in standard aircraft bomb racks The suspension fittings tested were: (1) Torpedo Suspension Band Mk 11 (2) Suspension Beam for Mk 13 Air Flask, 30" Centers (3) Suspension Beam for Mk 13 Air Flask, 14" Centers The objective of these tests was to determine what effect the addition of each of these suspension devices would have on the hydrodynamic characteristics of the torpedo. The tests were made on 2-inch diameter models (model scale ratio of 1 to 11.21) in the High Speed Water Tunnel at the California Institute of Technology. The results of these tests are given in Table 1 and in the section on cavitation on Page 10 of this report