Fastest human powered propeller-driven submarine

In June 2007, the two person propeller-driven submarine OMER 5, piloted by Sebastien Brisebois and Joel Brunet (both Canada) of the Ecole de Technologie Superieure at the University of Quebec, Canada, broke the human-powered submarine world speed record with a top speed of 8.035 knots (14.9km/hr; 9.2mph). Many human-powered submarine enthusiasts believed the 8-knot barrier to be unbreakable. The previous record of 7.192 knots, set by OMER 4, had stood since 2001. The record was set during the 9th International Submarine Races (ISR) hosted by the Naval Surface Warfare Center’s Carderock Division at the David Taylor Model Basin in Bethesda, Md, USA, from 25 to 29 June 2007 . The Races, held biannually, feature teams competing in several categories of human-powered submarines including Two Person Propeller, One Person Propeller, and One Person Non-Propeller.