I can confirm that Bristow maintained Douglas Bader's Beechcraft Baron reg G-APUB as it was serviced by the BHL Flying Training School at Redhill when I was the Chief Engineer. The aircraft was hangared at White Waltham however and I often went there to sort out some problem or other. The first occasion that the aircraft came to me I had to tell Jack Woolley that the aircraft was ready for Sir Douglas, Jack asked me to his office and said that he had to go to a meeting and would I drive Douglas to the FTS and he gave me the keys to his Daimler. When we were settled in I realised that the car was an automatic which I had never driven before. Sir Douglas came to the rescue and instructed me on what to do and saved me a lot of embarrassment.