James Wharram Designs are designers of unique double-canoe style sailing catamarans inspired by the canoe craft of the Pacific. They have their headquarters on the shore of Restronguet creek in Devoran, Cornwall.
James Wharram is the pioneer of offshore multihulls, making his first Atlantic crossing by catamaran in 1956 and the first ever North Atlantic West-to-East crossing by multihull in 1959. He started designing for self-builders in 1965.
Wharram designs are based on years of practical, hands-on experience of building and ocean sailing catamarans.