Abstract

In recent years, there has been a concerted effort to produce a laboratory standard to test and quantify the performance of shock mitigating seats in high-speed boats. Despite significant progress towards international agreement on the terms of an ISO standard, it was eventually abandoned in favour of varying national-level standards. Some prior publications may lead to misinterpretation, so an overview of the standard is presented to aid the reader in understanding the tenets of the standard, including its objectives and purpose. The remainder of the paper is concerned with rebutting broad categories of objections. Definition of the test waveform, vulnerability of human occupants, effects of filtering on signals, types and suitability of drop test rigs, and the rejection of “brace” type seats. In each instance, examples are provided of where concerns with the test method are unfounded or based on a misinterpretation of the test method.

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