Note 156 — Chapter IX · PROPELLING MACHINERY
Reading edition
A similar paradox was accidentally revealed in the case of the paddlewheel. It was at first thought that, the broader the floats the greater would be the pull. A certain steam vessel, however, being found to have too much beam to allow her to pass into a lock, was altered by having her floats and paddle-boxes made narrower. It was found that her speed had thereby been improved (Otway).