Intent on en-couraging British aviation progress, the Daily Mail offered a prize of £1,000 in 1923 for a ‘motor glider’ competition. The Duke of Sutherland offered £500 for the longest flight on one gallon of petrol in an aero-plane with an engine of not more than 750cc capacity. So the Royal Aero Club organised a Light Aeroplane Competition at Lympne in Kent.
The ANEC l, G-EBIL, was designed by W. S. Shackleton and was one of Britain's first ultra-light aircraft. It was entered in the 1923 Lympne Trials, and in the hands of J. H. James reached a height of 14,000ft after earlier flying 871 miles on a single gallon of petrol, powered with the 698cc Blackburne Tomtit.
Later it went to Martlesham for test-ing and acquired service number J7506. It was re-engined with a 1000cc Anzani, becoming the ANEC 1A, and was re-turned for civilian use. With shortened wings it won the high-speed prize at the 1925 Lympne Trials at 83.76 mph. Registration marks were cancelled on January 22, 1926.