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Summary: Naval film describing the Bombardon, a floating breakwater designed to provide a sheltered anchorage for a landing operation.
Description: Graphic sequences and film from a test tank demonstrate the mechanics of wave motion and the effect of the Bombardon. Diagrams illustrate internal construction and dimensions, and explain the principles of operation deployment. A length of breakwater is shown under construction in King George V docks, London, and the film reviews the various features of the design. The completed section is then seen being towed, in company with others, to be moored near Portland. An aerial view of a trial Bombardon barrier in Weymouth Bay, demonstrates its ability to restrain surface wave motion, and this is further emphasised by film taken during a Force 7 storm. The film concludes with some statistics concerning assembly time, the maximum depth in which the breakwater may be moored, and the production figures up to the date, 15 May 1944.