Файл:RCN experimental hydrofoils.jpg

Three of the experimental predecessors of the FHE 400 are illustrated. At the upper left is the Massawippi, designed by naval architect Philip L. Rhodes, of New York, for Cdr. D. M. Hodgson, RCNR, of Montreal, who proposed an attempt on the world's water-speed record. The Massawippi project was taken over by Defense Research Board and the craft, built for the Naval Research Establishment, Dartmouth, attained speeds of up to 55 knots. The next craft, the Bras d'Or, built by Saunders-Roe in Britain and brought to Canada on board the Bonaventure in early 1957, is 75 feet long, compared to 45 feet for the Massawippi. Much useful knowledge has been gleaned from her operation. The Rx, shown at lower left, is more like a barge than a boat. She is used to test various foil designs.