An experimental investigation of interceptors for a high speed hull

• Published in: International journal of naval architecture and ocean engineering 2019, 11(1), , pp.256-273
• Main Authors: Avci, Ahmet Gultekin, Barlas, Baris
• Format: Article
• Language: English
• Subjects: Energy saving devices; Fuel efficiency; Interceptors; Model testing; 조선공학
• ISSN: 2092-6782; 2092-6790
• DOI: 10.1016/j.ijnaoe.2018.05.001

Nowadays interceptors have been widely used in a vast range of high-speed crafts. In this study, the results of interceptor adeptness experiments made in Istanbul Technical University's Towing Tank are unveiled. The model was tested through three transverse locations of interceptors with six different deployment depths. For three locations, the interceptor was positioned transverse on the aft; close to chine, in the middle and close to the keel. The fourth interceptor was a full length of 13.00% LWL. The results show a significant drag reduction in benefits of 1.50%–11.30% for Fn 0.58–1.19 and the trim reduction was observed in between 1.60 and 4.70°. Besides, one of the most significant conclusions indicates that the effect of the interceptor decreases from keel to chine for the same blade deployment heights so the blades should be controlled separately at least in three parts from keel to chine area, if operable. •Interceptors increase the total drag at low speeds (below around Fn = 0.40).•For very fast speeds interceptors blades may need to be off.•Trim and Sinkage values are need to be considered together in the interceptor design.•The effect of the interceptor decreases from keel to chine transverse location for the same blade deployment heights.•Interceptor blades should be controlled separately at least in three parts from keel to chine area, if operable.