Fig 4: John Chadwick Rnli District Surveyor of Lifeboats South West Checks With Plumb Line the Distance of Centre of Air Bag End from Centreline of Cabin Top the Bag Like
Fig. 4: John Chadwick, RNLI district surveyor of lifeboats, south west, checks with plumb line the distance of centre of air bag end from centreline of cabin top.
The bag, like hovercraft skirts, is made of two layers of neoprene sandwiching a reinforcing layer of nylon..
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