What is ISO 20083-2 - Shaft power of ship propulsion systems about?
ISO 20083-2 is the second part of the ISO 20083 series of standards that specifies a procedure to determine the shaft power of engine ships, by measuring the shaft distortion using an optical reflection type device.
ISO 20083-2 gives the principles of the measurement, the components of the device, and the calculation method. ISO 20083-2 also describes the factors for determining the measuring accuracy, including the calibration procedure, and specifies the on-board documentation for the device.