47.020.20 - Marine engines and propulsion systems

This document specifies a full-scale test method for propeller cavitation observation and hull pressure measurement. The objective of the test is to investigate the propeller cavitation behaviour and its effects on the hull vibration problems. The test method comprises the specification of the test instrumentation and implementation, construction requirements to ensure structural safety, test and measurement procedures, and reporting documentation. This document is applicable to ships in the fol...view more

This document specifies requirements for the ventilation of petrol engine and petrol tank compartments
in small craft having petrol engines for propulsion, electrical generation or mechanical power, to prevent
the accumulation of explosive gases in these compartments. Personal watercraft are not covered in this
document.

This document specifies a model test method for propeller cavitation noise evaluation in ship design, focusing mainly on the noise source localization. The procedure comprises the model test set-up, noise measurements, data processing and source localization. The target noise source being propeller cavitation, this document describes the test set-up and conditions to reproduce the cavitation patterns of the ship, which is the same as in ISO 20233‑1. The noise measurements are performed using a h...view more

This document specifies a procedure to determine the shaft power of engine ships, by measuring the shaft distortion using an elastic vibration type device. It gives the principles of the measurement, the components of the device and the calculation method. It also describes the factors for determining the measuring accuracy and specifies the on-board documentation for the device.

This document specifies a procedure to determine the shaft power of engine ships, by measuring the shaft distortion using an optical reflection type device. It gives the principles of the measurement, the components of the device and the calculation method. It also describes the factors for determining the measuring accuracy, including the calibration procedure, and specifies the on-board documentation for the device.

This International Standard establishes requirements for design and test of petrol and diesel fuel tanks for internal
combustion engines that are intended to be permanently installed in small craft of up to 24 m length of hull.
For installation requirements, ISO 10088 applies.

Specifies requirements to prevent an outboard motor from being started in gear, when installed on small craft of up to 24 m length of hull.

Specifies requirements to prevent an outboard motor from being started in gear, when installed on small craft of up to 24 m length of hull.

This document establishes requirements for the design and installation of engine-mounted fuel, oil and
electrical components on diesel inboard-mounted engines for minimizing fuel leakage, risk of electric
shock and the risk of and/or the spread of fire on small craft of hull length up to 24 m.

This document establishes requirements for the design and installation of engine-mounted fuel, oil and electrical components on diesel inboard-mounted engines for minimizing fuel leakage, risk of electric shock and the risk of and/or the spread of fire on small craft of hull length up to 24 m.

ISO 20233-1:2018 specifies a model test method for propeller cavitation noise evaluation in ship design. The procedure comprises reproduction of noise source, noise measurements, post processing and scaling. The target noise source is propeller cavitation. Thus, this document describes the test set-up and conditions to reproduce the cavitation patterns of the ship based on the similarity laws between the model and the ship. The propeller noise is measured at three stages. The measurement targets...view more

Specifies requirements and test methods for remote push-pull cable steering systems and their major component items, used for small craft with a single outboard motor of 15 kW to 40 kW power. Includes definitions, installation, test requirements, as-installed tests, component tests and outboard motor requirements. Components and functional details are given in figures.

This International Standard specifies requirements for the design and installation of engine-mounted fuel and
electrical system components on inboard petrol engines for minimizing fuel leakage and protecting against ignition
of surrounding flammable gases on small craft of hull length up to 24 m.
The following types of engines are exempt from the application of this International Standard:

engines in personal watercraft as defined by ISO 13590 (see the bibliography);

outboard engines.

This International Standard specifies the requirements additional to ISO 15550 for determining the power of
marine propulsion reciprocating internal combustion (RIC) engines when presented for documenting and
checking of the declared (rated) power published by the manufacturer.
This International Standard applies to engines used for propulsion of recreational craft and other small craft of
up to 24 m hull length.
This International Standard is to be used in conjunction with ISO 15550.
NOTE...view more

Specifies requirements and test methods for remote push-pull cable steering systems and their major component items, used for small craft with a single outboard motor of 15 kW to 40 kW power. Includes definitions, installation, test requirements, as-installed tests, component tests and outboard motor requirements. Components and functional details are given in figures.

This International Standard specifies the requirements for the design, materials, construction, installation
and testing of permanently installed fuel systems as installed for internal combustion engines.
It applies to all parts of permanently installed diesel and petrol fuel systems as installed, from the
fuel fill opening to the point of connection with the propulsion or auxiliary engine(s) on inboard- and
outboard-powered small craft of up to 24 m hull length.
Requirements for the design...view more

ISO 484-1:2015 defines manufacturing tolerances of ship screw propellers of a diameter greater than 2,50 m. NOTE Some deviations for the tolerance are permitted in certain cases subject to the discretion of the customer or of the designer and the customer.

ISO 484-2:2015 defines manufacturing tolerances of ship screw propellers of a diameter between 0,80 m and 2,50 m. NOTE Some deviations for the tolerance are permitted in certain cases subject to the discretion of the customer or of the designer and the customer.

This International Standard specifies the measurement and evaluation methods for gaseous and
particulate exhaust emissions from reciprocating internal combustion (RIC) engines under steady-state
conditions on a test bed, necessary for determining one weighted value for each exhaust gas pollutant.
Various combinations of engine load and speed reflect different engine applications.
This International Standard is applicable to RIC marine engines intended to be installed in small craft
up to 24...view more

ISO 18854:2015 specifies the measurement and evaluation methods for gaseous and particulate exhaust emissions from reciprocating internal combustion (RIC) engines under steady-state conditions on a test bed, necessary for determining one weighted value for each exhaust gas pollutant. Various combinations of engine load and speed reflect different engine applications.
It is applicable to RIC marine engines intended to be installed in small craft up to 24 m length of hull.