Enhanced structural design and operation of search and rescue craft

Federico Prini, Richard Birmingham, Simon Benson, Robert Dow, Philip Sheppard, H. J. Phillips, Michael Johnson, Jesus Mediavilla Varas, Spyros Hirdaris

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


This paper is a conceptual overview of the approach adopted to enhance the structural design and operation of high-speed craft through a set of design curves. It outlines how to construct a structural limit curve as a function of speed and sea state severity. The curve contributes to defining the ‘operational envelope’ of the craft, which informs design teams and crews on the limits to speed for the safe operation in waves. The construction of a structural limit curve requires an understanding of the loads that the structure sustains in operation and how it responds. This is achieved through a combination of numerical hydrodynamic and structural simulations, towing tank tests and sea trials. The study, which is conducted on the Severn Class lifeboat of the Royal National Lifeboat Institution (RNLI), has wider applicability in the design of future lifeboats and small high-speed craft. Explicit results, not presented here, are referenced throughout the paper.

Original languageEnglish
Title of host publicationProceedings of the 13th International Marine Design Conference (IMDC 2018)
EditorsPentti Kujala, Liangliang Lu
Number of pages14
ISBN (Electronic)978-1-351-01004-7, 978-0-429-44053-3
Publication statusPublished - 1 Jan 2018
MoE publication typeA4 Article in a conference publication
EventInternational Marine Design Conference - Otaniemi, Espoo, Finland
Duration: 10 Jun 201814 Jun 2018
Conference number: 13


ConferenceInternational Marine Design Conference
Abbreviated titleIMDC
Internet address


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