Tricycle type amphibious vehicle - has propeller and retracting front wheels driven by pedals

摘要

The amphibious tricycle has two front wheels and one rear one, together with two foam rubber floats fixed under the frame, and is driven by foot pedals. The front wheels are retractable, and the rear one is mounted in the tubular frame, and is used for steering, being actuated via a chain from the handlebars. The front wheels are driven from the pedals, as is the propeller. Virtually no energy is consumed by whichever of them is not actually propelling the tricycle. The floats fold upwards at front and rear, to aid storage.FL.