I must have been 7,8 and 9 years old when we, as a family, used the Carvair once and the Bristols twice. Seemed like first class to me at the time.
Dad (ex - Royces) took us on motoring holidays around Europe whilst he sold Elliot Autopilots to the various Embassies.
Thereafter he went back to Royces as chief eng on the RB211.