Report of the Mine Warfare Study Group. Volume 8. The SWATH as an MCM (Mine Countermeasures) Platform

摘要

The following are among the Task Groups findings: (1) A SWATH hull form displacing 33 to 54 t appears to have excellent seaworthiness characteristics for the inshore MCM mission while housing ample payload for minehunting with limited neutralization. (2) The seakeeping characteristics predicted for the SWATH hull form will permit a hull mounted sidelooking sonar option with minimum yaw compensation and no roll and pitch compensation. (3) The results of computer predictions of the motions of the two proposed SWATH designs show that, when suitably averaged for all headings, and when operating at 6 kt in a state 3 sea the roll angle amplitude for all designs will be less than 2 deg; the heave amplitude at the LCG will be approximately 2 ft; and the LCG accelerations approximately 0.04 g. These small motions and accelerations provide a comfortable working environment for crew and instrumentation. and (4) The comparative seaworthiness of a monohull, ASR Catamaran form, and MCM SWATH in the same environment are presented. The motions and accelerations of the SWATH hulls were substanially less than those for monohull and catamaran.