 <unk> air racing is open to any propeller @-@ driven aircraft capable of maintaining a minimum speed of 100 miles ( 160 km ) per hour in level flight . Races are a case of " fly low , fly fast , turn left " , consisting of 4 – 5 laps round a 20 – 25 mile ( 32 – 40 km ) circuit . <unk> aircraft are handicapped by starting after slower aircraft , the intention being that the race concludes with all aircraft diving for the finish line together . There are up to 16 races per year , conducted at airfields in the UK , France and the Channel Islands , for prizes that include the Schneider Trophy and King 's Cup , and the season culminates with the British Air Racing and European Air Racing Championships . 
