The e-Go Aeroplanes e-Go, originally known as the E-Plane, is a British ultralight and light-sport aircraft that was designed by Giotto Castelli, that was being developed by of Cambridge and since May 2017, by GioCAS Aeronautical Consultancy, also located in Cambridge. The aircraft won the Light Aircraft Association's design competition in 2007. It was first flown on 24 October 2013, with the first public flight-test and demonstration on 30 October 2013. The aircraft was initially to be supplied as a complete ready-to-fly-aircraft.