Films Available to Purchase

Hovercraft N4 (col, 19 min) tells a story of wide interest — the design, construction and testing of the world's largest hovercraft built to date. The tale of the first N4 dates back to 1962, only four years after Christopher Cockerell's original idea had been proved feasible. Design studies were started after a breakthrough led to the development of vastly improved flexible skirts. Detailed drawings and the successful testing of models culminated in orders for three craft and, by February last year, the first of these was undergoing sea trials. This British Petroleum Film is available from Petroleum Films Bureau, 4 Brook Street, London W1.