Articles by Bob Stuart


Coroplast HPV Body Construction - How to use Coroplast material to form human-powered vehicle fairings and internal structures, with both simple and compound curves.

The Car-Cycle X-4, A Pioneer of Integrated Suspension - Covering the development of an innovative HPV design with both frame and suspension components made from carbon-fiber and kevlar, with detailed technical description and photos.

The Car-Cycle - General discussion of Car-Cycle design and features.

The Lambordinghy:  An Application for the SpinFin Pedal Drive - overview of a 19' Pygmy kayak modified for pedal power.

The SpinFin Drive Unit - discussion of Bob's innovative drive system for human powered boats.


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