 The first truly successful human powered airplane, the Gossamer Condor, piloted by Bryan Allen won the Kremer prize on August 23, 1977 at Shafter's Minter Field.Allen piloted, and powered, the Paul MacCready designed airplane along the one mile long figure '8' course with two 10 foot high obstacles as specified by the Royal Aeronautical Society to claim the £50,000 prize.A California State Monument is located at the field for this event.