Comparative analysis of the requirements of the River Register Rules and European Regulations for ship arrangements
The article presents the results of comparative analysis requirements of the River Register Rules (RRR) and ES-TRIN standard for ship arrangements of inland navigation vessels. In the framework of the European agreement on main inland waterways of international importance are expected operations of vessels on international transport corridor, part of which are the inland waterways of Russia. In this regard, the question of the comparison of requirements of normative-technical documentation for vessels operating on inland waterways of Russia and European inland waterways becomes relevant. The purpose of the work is to analyze the requirements of the River Register Rules and the ES-TRIN standard for ship arrangements, as well as to detect differences in approaches required by the operating conditions of ships on the rivers of Russia and Europe. As a research method, we used a comparative analysis of the requirements of the River Register Rules and the ES-TRIN standard, including by comparing the results of calculations of elements of anchor, mooring, towing, steering arrangements, made in accordance with the requirements of these regulatory documents for specific ship projects. It is shown that when calculating the total length of anchor chains for specific ship projects, the requirements of the River Register Rules are significantly "tougher" than the values calculated according to the requirements of the ES-TRIN standard (for "O" class vessels - by 2 times). The values of the breaking force of the towrope of tugs calculated according to the River Register Rules or class "O" vessels are significantly higher (up to 92 %) compared to the values calculated according to ES-TRIN. It is noted that the methods for determining the mass of anchors and maneuverability criteria given in the River Register Rules and the ES-TRIN standard have fundamental differences that do not allow obtaining comparable results. The materials presented in the article can be used by design organizations when designing vessels that are supposed to be operated on the European inland waterways as well as by specialists of the River Register when improving their regulatory and technical base .