TS EN ISO 3715-1

TS EN ISO 3715-1 is a vocabulary standard for the geometry of propellers used in ship propulsion plants. It provides a common technical language for the terms and definitions needed to describe the hydrodynamically effective part of a propeller, supporting clear communication in design, documentation, and technical discussion.

Key geometry terms in propeller design

In marine engineering, a screw propeller converts rotational power into thrust by interacting with the surrounding water. Vocabulary for propeller geometry typically covers concepts such as pitch, diameter, blade count, blade edges, and hub-related geometric features. Precise terminology matters because these terms are used in drawings, specifications, performance discussions, and comparisons between different propeller designs. In general technical context, they also form the basis for understanding how blade form influences flow, loading, and efficiency.

What this part covers and what it leaves out

According to the scope, this part applies to screw propellers used in ships and other vessels, including mobile offshore drilling units, whether self-propelled or propulsion-assisted. The definitions are valid only for the hydrodynamically effective part of the propeller. No definitions are given for the mechanical construction of the hub, which makes clear that the standard focuses on geometric terminology rather than mechanical manufacturing details.

As a result, TS EN ISO 3715-1 serves as a terminology reference that helps align wording across ship design, marine equipment documentation, and engineering communication. Its value lies in making propeller geometry easier to describe consistently and interpret correctly across the marine technology field.