Parameter study for enhancing the speed of a high-speed craft prototype with adequate maneuverability

Abstract

Abstract Today, the use of high-speed crafts in small dimensions has rapidly expanded due to their high capabilities in quick and timely responsiveness, considering the strategic situations of countries. They are heavily prioritized in the agendas of research, investigations, and industries across all governments. Achieving the appropriate dimensions, size, and hull form for a high-speed craft exceeding 60 knots requires considerable time and expense. This research aims to identify the influential factors in increasing the speed of a high-speed craft prototype with adequate maneuverability so that desired speeds can be achieved rapidly and cost-effectively through effective modifications to the hull lines, chines positions, hull indentations, propulsion system, initial trim, etc. Initially, the sample craft was scanned, and simulations were conducted using MAXSURF software. The hull of the craft was uniformly adjusted according to the final modifications, and all hydrostatic and hydrodynamic calculations on the modified hull were performed. From the results of this research, it can be noted that to achieve the desired speed of over 60 knots, the initial trim angle must be at least 0.4 degrees on the transom. Achieving this required adjustment of hull lines and equipment placement. Additionally, the desired craft, with a safety factor of 1.25, requires an effective power of approximately 600 horsepower to reach the desired speed.