The Gossamer Penguin was a solar-powered experimental aircraft created by Paul MacCready's AeroVironment. MacCready had built the Gossamer Condor in 1977 which won the Kremer prize for the first human-powered flight, and the Gossamer Albatross, a similar but larger aircraft. The Gossamer Penguin was developed from the Albatross and used that ultralight design to demonstrate solar flight at testing ground at Minter Field, outside of Shafter, California. The Gossamer Penguin was the third solar-powered aircraft to fly, and the second crewed solar-powered aircraft.