Human-powered watercraft arewatercraft propelled only byhuman power, instead of being propelled bywind power (via one or moresails) or anengine.
The three main methods of exerting human power are:
While most human-powered watercraft usebuoyancy to maintain their position relative to the surface of the water, a few, such ashuman-powered hydrofoils and human-poweredsubmarines, usehydrofoils, either alone or in addition to buoyancy.
Oars are held at one end, have a blade on the other end, andpivot in between inoarlocks.
Oared craft include:
Using oars in pairs, with one hand on each oar, istwo-oar sculling. The oars may also be called sculls.[2]
Two-oared sculled craft include:
Using oars individually, with both hands on a single oar, issweep or sweep-oar rowing.[2] In this case the rowers are usually paired so that there is an oar on each side of the boat.
Sweep-oared craft include:
Moving a single stern-mounted oar from side to side, while changing the angle of the blade so as to generate forward thrust on both strokes, issingle-oar sculling.[4]
Single-oar sculled craft include:
Paddled watercraft, or paddlecraft, uses one or more handheldpaddles, each with a widened blade on one or both ends, to push water and propel the watercraft.. Commonly seen paddlecrafts include:
Pedals are attached to a crank and propelled in circles, or to atreadle andreciprocated,[citation needed] with the feet. The collected power is then transferred to the water with apaddle wheel,flippers,[8][9][10] or to the air or water with apropeller.
Pedaled craft include:
A pole is held with both hands and used to push against the bottom.
Poled craft include:
Other types of human-powered watercraft include:
They row with their feet. As Mrs. Gấm puts it: "Rowing boat by feet is much quicker and less exhausting than by hands."
The sturdily constructed pedal/flipper mechanism operates like a penguin's fins - swinging laterally underneath the hull as you pedal.
It's outfitted with the MirageDrive propulsion system, a pedal-powered pair of flexible fins that function as oscillating foils—much like penguin and sea-turtle flippers.
Instead of a conventional paddle, these kayaks can be powered by a foot-pedal system which drives two under-keel fins. Inspired by penguin flippers, the fins swing side to side.
The Scubster is an underwater bike, a pedal powered submarine with twin propellors [sic] that push it through the water at a speedy 5mph.
First there was the bicycle, then the pedalo boat, then the pedal-powered aircraft — and now, thanks to a team of French engineers, the world has the pedal-powered submarine.
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