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
Sikorsky Memorial Airport The airport was originally Avon Field, a racetrack where aircraft landed on the grass infield. It was the site of the country's first air show held in 1911, on the grounds of what is now St. Michaels Cemetery. It became known as Mollison Field after Captain Jim Mollison's crash landing there in 1933 during an attempt to fly across the Atlantic. The City of Bridgeport purchased the airport in 1937, after which it became Bridgeport Municipal Airport. In 1972 it was rededicated as the Igor I. Sikorsky Memorial Airport, honoring the airport's most famous tenant, Igor Sikorsky, who selected Stratford