Sheer Strake – An important plate of ship

This article is an additional knowledge support for SHIP STRENGTH CALCULATION (Part 1) and SHIP STRENGTH CALCULATION (Part 2). Under sea-going condition, the Hogging and Sagging condition make the ship steel be continuously compressed and stretched those making steel become fatigue collapsed specially at amid ship area as general. Giving that the longitudinal stress which can cause ship … Continue reading Sheer Strake – An important plate of ship

Design draft vs Scantling draft

The Draft, as simple definition is the distance between the sea level and the bottom of hull (included the thickness of bottom - see this article) But the confusions still happening sometime for the junior designer/surveyor during initial design stage/ dimension surveying. That there're two terms of Design and Scantling whose making the story. Hereby … Continue reading Design draft vs Scantling draft

PSPC – Performance Standard for Coating of Ballast Tanks – Part 2

Continue on Part 1  We will talk about the concept of Structure inspector during surveying with the mean of Painting quality protection. PSPC requirement for the steel works as below: The steel surface shall be prepared so that the coating achieves an even distribution at the specified nominal dry film thickness of 320 micron and … Continue reading PSPC – Performance Standard for Coating of Ballast Tanks – Part 2

PSPC – Performance Standard for Coating of Ballast Tanks – Part 1

History briefs: In 2002, TSCF published “Guidelines for Ballast Tank Coating Systems and Surface Preparation” provided differing levels of standards for minimum target coating life of 10, 15 and 25 years (denoted as TSCF10, TSCF15 and TSCF25). In order to address the same issue for all vessels, in 2006 IMO adopted Resolution MSC 215(82) “ … Continue reading PSPC – Performance Standard for Coating of Ballast Tanks – Part 1