 In early 1910 he began to fly his designs and in late September 1910 he became the first occupant of Hendon Aerodrome, newly established by the London Aerodrome Co, where he leased three hangars.His ASL Valkyrie design started test flying from there in October 1910, Barber using the aircraft to gain his Aero Club Certificate (No.30) in November of that year.