Overview
ISO 19030-1:2016 - Ships and marine technology - Measurement of changes in hull and propeller performance - Part 1: General principles - establishes the general principles and vocabulary for measuring changes in hull and propeller performance over time. The standard is applicable to ships driven by conventional fixed‑pitch propellers and is intended to compare the performance of the same ship to itself (not to compare different ships). It defines primary parameters, required measurement practices, and a set of performance indicators used to evaluate maintenance, repair and retrofit activities.
Key technical topics and requirements
- Primary parameters: Delivered power (propeller/shaft power) and speed through the water are the core metrics for quantifying hull and propeller performance.
- Secondary parameters: Environmental and operational factors needed for filtering/normalization - wind, waves, water depth/temperature/density, speed, loading (draught/trim), motions and rudder activity.
- Performance indicators (PIs): Standardized PIs include:
- Dry‑docking performance (post‑dry‑dock change versus prior out‑dock averages)
- In‑service performance (average change during dry‑docking interval)
- Maintenance trigger (change from start of interval to a moving average)
- Maintenance effect (before‑and‑after measurement around a maintenance event)
- Measurement procedures: Guidance on data acquisition, storage and preparation, including filtering and normalization methods to make reference and evaluation periods comparable.
- Uncertainty and accuracy: The standard addresses measurement uncertainty and accuracy of PIs and references Annex A for methods to estimate uncertainty of performance analysis.
- Scope limits: Focused on conventional fixed‑pitch propeller ships; support for other configurations (e.g. variable pitch) may be included in future revisions.
Practical applications - who uses it and why
ISO 19030-1 is used by maritime professionals involved in ship performance monitoring and energy efficiency management:
- Ship owners and operators - quantify the impact of hull cleaning, fouling management, or propeller polishing on fuel consumption and delivered power.
- Technical managers and performance engineers - set maintenance triggers, validate effectiveness of repair/retrofit actions, and plan dry‑docking intervals.
- Shipyards and repair contractors - demonstrate in‑service performance gains after maintenance or retrofit.
- Performance data providers and ship performance software vendors - implement consistent filtering, normalization and PI calculations.
Note: the ISO 19030 series is intended for commercial decision‑making and operational benchmarking of the same vessel over time, not for regulatory compliance or cross‑vessel comparisons.
Related standards
- ISO 19030-2: Default methods for measuring changes in hull and propeller performance and guidance on expected accuracy.
- ISO 19030-3: Alternative measurement methods and trade‑offs in accuracy versus applicability.
Keywords: ISO 19030-1:2016, hull and propeller performance, measurement, performance indicators, ship performance monitoring, delivered power, speed through water, normalization, dry‑docking.