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INTERCEPTOR DESIGN AND CONTROL FOR THE HIGH SPEED CRAFT 15

INTERCEPTOR DESIGN AND CONTROL
FOR THE HIGH SPEED CRAFT

Ataol TUNÇER*, Gökhan Tansel TAYYAR* and Yalçın ÜNSAN*
* Istanbul Technical University

ABSTRACT

Constant trim by stern at high speeds is an important element which decreases the performance of the
high speed craft. Interceptor is one of the solutions for this issue. The aim of this study is to analyze an
interceptor mechanical design and to preview the electronic control options.
Keywords: Trim Tab, Interceptor, Automation, Control Systems, High Speed Crafts

1. Introduction
Achieving high speeds on water is a desirable but challenging ambition. Therefore different
types of hulls were used to achieve desired speeds. Some of major types are as follows; Mono
hull, Catamaran & Trimaran (Multi-Hulled Vessels), Hydrofoil Craft, Surface Effect Ship (SES)
and Small Waterplane Area Twin Hull (SWATH). [1] Within this study mono hull high speed
crafts will be the subject hull form.
2. Planing Mono Hulls
Planing mono hull forms broadly look like Figure 2.1 Planing Mono Hull Elements [2] and Figure
2.2 Sample Planing Mono Hull Forms [3].

Figure 2.1 Planing Mono Hull Elements [2]

Chine is to ease planing for a high speed craft by creating a flat surface to allow a greater lift
force. Lift force is essential to reach higher speeds with a mono hull craft, as it lifts the vessel
upwards, thus decreasing the displacement volume. This hydrodynamic lift force replaces the

Sayı 7, 2016 GiDB|DERGi