The "home-built" N-75 was a conventional high-wing monoplane design with a welded-steel fuselage and tail surfaces with fabric covering, looking not unlike a Piper Cub.

[1] Fleet undertook some minor design changes, principally relocating the fuel tank, adding a skylight above the cabin, lowering the front fuselage profile and replacing the original Continental C-75 with a slightly more powerful C-85 engine.

Following modifications to the fin to increase its size, the prototype, newly renamed, emerged as the Fleet Model 80 Canuck, and entered production.

Although the aircraft were well built, strong performers[2] and versatile; able to be flown with floats or skis to increase its utility, after a spurt in sales, they did not sell well.

Over the next ten years a number of aircraft were built up from components by Leavens Brothers in Toronto with total series production finishing at 224 in 1958.