Sikorsky Aircraft and soon increased prize money to US$25,000. In 2010, Sikorsky Aircraft pledged to increase the prize sponsorship to US$250,000. The Canadian engineers Dr. Todd Reichert and Cameron Robertson developed the world's largest ever human powered helicopter with a team from the [[University of Toronto]]. The first flight of AeroVelo Atlas was achieved in August 2012, the 64-second, 3.3-m-flight that won the prize on June 13, 2013. Sikorsky designates nearly all of its models with S-numbers; numbers S-1 through S-27 were designed by [[Igor Sikorsky]] in the Russian Empire. Later models, especially helicopters, received multiple designations by the military services using
Igor I. Sikorsky Memorial Bridge of the Igor I. Sikorsky Memorial Bridge opened in 2003; the Sikorsky Bridge was demolished in 2004. In February 2004, the load unexpectedly shifted on a crane that was removing structural steel from the old bridge. The crane overturned and fell into the partially frozen Housatonic River, killing its operator. The remaining half of the Igor I. Sikorsky Memorial Bridge was completed in 2006, two years behind schedule. The new bridge has a concrete deck, with an asphalt surface, three lanes in each direction, full left and right shoulders, a sidewalk for pedestrians, wrought-iron railing, and aesthetic lighting. The bridge