sentences:  By then, the Airwork Flying School had become well established, many privately owned aircraft had moved in, and the Household Brigade Flying Club, also known as the Guards flying club, had moved from Brooklands.Frequent public events helped promote Heston as a major centre of private flying, air displays, public demonstrations of new aircraft types, 'garden parties', air races, and as the starting point for long-distance flight record attempts.The King's Cup race was again staged at Heston in 1931.