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Demonstration model for a self-pitching marine screw propeller with geared blades, designed and patented by John R. Coxon, Petworth, West Sussex, England and made by Woodcoxon Engineering Limited, Petworth, West Sussex, England, 1980. On teak display stand by Science Museum Workshops, South Kensington, London, England, 2002-2003. The propeller blade pitch was engineered so that if it would be impossible to replicate. This was in preparation for Woodcoxon to demonstrate to prospective national and international customers.

Demonstration Model, for Self-Pitching Marine Screw Propeller

1980
Self pitching three bladed propeller, first successful development, designed and patented by John R. Coxon, Petworth, West Sussex, England, 1977 and made by Woodcoxon Engineering Limited, Petworth, West Sussex, England, 1978-1979, tested and certified by Admiralty Marine Technology Establishment, Haslar, Gosport, Hampshire, England, 1978-1979. On teak display stand by Science Museum Workshops, South Kensington, London, England, 2000-2001.

Self-Pitching Three-Bladed Propeller, First Successful Development

1978-1979
Self pitching propeller, final two-bladed experimental development, designed and made by Christopher John Coxon and made by Woodcoxon Engineering Limited, Petworth, West Sussex, England and tested by Admiralty Marine Technology Establishment, Haslar, Gosport, Hampshire, England, 1982. On teak display stand by Science Museum Workshops, South Kensington, London, England, 2000-2001. This two-bladed self pitching propeller was originally designed by John R. Coxon, Petworth, West Sussex, England, 1977 and made by Woodcoxon Engineering Limited, Petworth, West Sussex, England, 1978-1979, tested and certified by Admiralty Marine Technology Establishment, Haslar, Gosport, Hampshire, England, 1978-1979.

Self-Pitching Propeller, Final Two-Bladed Experimental Development

1982