Next Siddeley took advantage of parent companies Armstrong's and Vickers' financial difficulties of the mid 1920s[8] and by 1927 he had gained control of all three Siddeley businesses.[2][7] He remained their chairman until 1935 when, at the age of 70, he arranged his last takeover with Hawker Aircraft who formed Hawker Siddeley though the Siddeley businesses kept their identities. From this arrangement he received "£1 million and numerous benefits".[1]