On Sat, Mar 20, 2010 at 8:52 AM, Peter Davis <peterbdavis@xxxxxxxxx> wrote: > Gentlemen > > I have a brother who is has limited use of his legs, So why am i posting? I > am bouncing around the idea of building a hand cranked version of the > python. as there is no need to steer per se. the crank arm could be used as > a kind of a tiller. as i have not as of yet built or even riden a python I > am tossing out the idea to you all in an attempt to gauge the feasibility. > first off i was thinking synchronized cranks so as to avoid "wobble" while > pedaling, more of a rowing motion than a pedaling. anyways what do you all > think? is it do able? will it be ride able? > If the main thing is the rowing propulsion you should have a look at http://rowingbike.com/site/EN/ . I know there is somebody who can only use one leg who is riding a rowingbike. There is also a three wheel (tadpole) version. They are pretty easy to ride, in 10 to 15 minutes you should be able to ride a way. Cheers, Uipko