JEMS apply the Creative Commons Attribution NonCommercial 4.0 International Licence to all manuscripts to be published
Traditional Aegean Sailing Boats: A Comparative Study on the Hull Design and Hydrodynamics of Bodrum Çırnıks and Tirhandils
BÜLENT İBRAHİM Turan1, MEHMET AKMAN21Bodrum Maritime Vocational School, Muğla Sıtkı Koçman University, Muğla, Türkiye2Faculty of Naval Architecture and Maritime, İzmir Katip Çelebi University, İzmir, Türkiye
Bodrum Çırnık boats, which were used in the Aegean Sea for many years, are among the traditional sailboat types unique to Türkiye. These vessels share significant similarities with Tirhandil-type boats, which remain in active use in the same geographical region today. This study aims to investigate the hull form design parameters, hydrostatic properties, and resistance characteristics of Bodrum Çırnık-type boats through a comparative analysis with Tirhandil-type boats to identify their distinctive features. In addition to technical analyses, this study also aimed to serve as a means of preserving the cultural and historical heritage of Aegean wooden boatbuilding traditions by documenting and analyzing these significant boat types. The hull form of the Bodrum Çırnık is reconstructed using previous academic research, a scaled model exhibited at the Bodrum Maritime Museum, and technical drawings available in the academic literature. Based on the obtained data, models of a Bodrum Çırnık and a Tirhandil with identical overall lengths are developed. In this context, hull form design parameters and hydrostatic properties are derived for comparative evaluation. Additionally, the Holtrop-Mennen method and the Delft Systematic Hull Form Series method are employed to assess the resistance characteristics of Bodrum Çırnık-type boats. The results indicate that Bodrum Çırnık boats are characterized by their pointed bow and stern forms, longitudinal keel, and distinct sheer line. Their most distinguishing feature compared to Tirhandils is their more pronounced bow inclination. Moreover, Bodrum Çırnık boats generally exhibit lower hydrodynamic resistance than Tirhandils at the tested speeds.
Keywords: Bodrum Çırnık, Tirhandil, Hull design, Hydrodynamics, Aegean BoatManuscript Language: English