Modeling a traditional fishing boat building in East Java, Indonesia

• Published in: Ocean engineering 2019-10, Vol.189, p.106234, Article 106234
• Main Authors: Praharsi, Yugowati, Jami'in, Mohammad Abu, Suhardjito, Gaguk, Wee, Hui-Ming
• Format: Article
• Language: English
• Subjects: Indonesia; Linear regression; Modeling; Traditional fishing boat; Wooden boat
• ISSN: 0029-8018; 1873-5258
• DOI: 10.1016/j.oceaneng.2019.106234

Indonesia being an archipelago country have a long fishing industry history. Even in the modern age, there are still a lot of traditional boats that are being utilized, while researches onto modeling them are limited. In this paper, we try to model the tasks for building traditional boat. The stages for building a traditional fishing boat are separated into the following: cutting wood, hull construction, frame installation, hatches installation, the wheelhouse building installation, engines installation, painting, and sea trial. While the resources that are being used are the man hours, raw materials required, the material cost, and the labor cost. With the manhours and material requirement are in direct correlation of their ship tonnage. Modeling for the ships are done in a multivariate linear regression and simple linear regression based on the material requirement and the manhours needed. Furthermore, improvements on the construction of the ship itself were proposed with the model validation error of 5.72% and 5.78% for multivariate and linear regression respectively, providing proof that the validation error is not over fitting with the model error being 8.9% and 6.06% respectively.