[Juha]

Hello George
the gunner seat had very low back only up to the lumbar region, or what ever in English, and he was able to stand up if he wanted to fire downwards and for this he had a free standing belt attached to the floorboard. He well might also had a lap strap, at least for use during take offs and landings, but I'm not sure of that but probably he had. John surely knows the answer. Anyway he was not strapped onto his seat as tightly as pilot.

Juha