Section 15 Screwshafts, tube shafts and propellers

Clasification Society 2024 - Version 9.40

Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Inland Waterways Ships, July 2022 - Part 1 Regulations - Chapter 3 Periodical Survey Regulations - Section 15 Screwshafts, tube shafts and propellers

Section 15 Screwshafts, tube shafts and propellers

15.1 Frequency of surveys

15.1.1 All screwshafts are to be surveyed at intervals of five years.

15.1.2 When directional propellers for main propulsion purposes are fitted, they are to be opened up for examination of the working parts and control gear at intervals of five years.

15.2 Scope of surveys

15.2.1 All screwshafts and tube shafts are to be withdrawn for examination by LR’s Surveyors.

15.2.2 Controllable pitch propellers are to be surveyed at the same time as the screwshafts. The working parts and control gear are to be opened up for examination.

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