The J.T.1 Monoplane was designed by John Taylor in 1956 and the prototype (registered G-APRT) was built by him at Ilford, Essex between 1958-1959. It flew for the first time on 4 July 1959 at White Waltham. At that time it represented the first post war homebuilt design to come from England. It was designed to be constructed in small spaces with the minimum of tools and material cost, requiring only average building skills from the constructor. It is aimed exclusively at the lower power range such as the 40 hp (30 kW) Volkswagen air-cooled engine, therefore giving economy with an acceptable cruise speed. It is semi- aerobatic. The airframe of the J.T.1 Monoplane was proof loaded to verify the stress calculations and no modification has ever been introduced since the prototype was approved. The total number flying to date is over 110 examples.