Letter | Published:

Size Versus Colour in Air-Sea Rescue

Nature volume 159, pages 612613 (03 May 1947) | Download Citation



I AM indebted to the Air Ministry and especially to the civilian staff of the Air-Sea Warfare Development Unit for a copy of the valuable report on “The Optimum Dinghy Colour for Air-Sea Rescue”. Colours were tried from a yellow close to the Schott glass O.G.1, through orange and fire orange, near Schott O.G.2, onwards to traffic red and post-office red, like Schott R.G.1. The overall average visual range of the five coloured M-type dinghies for all-round weather conditions around the British Isles was approximately 1.7 nautical miles (3.15 km.). The waters were mostly greenish, but this is not always so on our coasts.

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    , "Physics and Chemistry of Surfaces", 213 (1941).

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  1. Department of General Physiology, Marine Biological Laboratory, Plymouth. March 10.

    • W. R. G. ATKINS


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