Tony Bishop reports on The Royal Aeronautical Society’s International Light Aircraft Design Competition, which provided stimulating simulations for on-screen air racing. The 2019 RAeS competition was to design an electric air-racer, inspired by Air Race E’s new competition starting up in 2020. With a single pilot and short duration, this is an excellent proving ground for new electric power train technologies. According to the RAES, “The design rules were based on Air Race E, but widened to encourage a broader range of configurations. Air Race E rules include a minimum empty weight of 227 kg, a maximum motor power of 150 kW, fixed pitch propellers, a minimum wing area of 6.132 square meters and a fixed main undercarriage. Air Race E also demands that all motors have the same thrust line. This limitation was removed from the RAeS competition to encourage wider innovation.” According to Flyer magazine, racers had to fly around a five-kilometer (3.1 miles) course, staying within high …