Flight Crew
Probably not flight crew though.
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G-CPTN, Yes you are right, the Air Tanker flight crew are not military. They are a bit risk averse - like flying 4 hours in still air with seat belt light on and toilet doors locked, but trolley cart out every half hour with flagons of drinks to keep troops hydrated. (Elfin Safety!)
A Major seated in 1a said " for f***s sake, stop serving drinks to my men or unlock the bog door"