anoccasionalyachtsman
Well-Known Member
More like a small brass artillery shell - I have a cut-down one on my desk as a pencil-holder
As I understand it, though, the charge was much slower-burning than a firearm cartridge, giving something more like a rapid stream of gas, to turn a turbine, rather than an instantaneous detonation.
Pete
Those were for gas turbine engines, but for pistons it was the Coffman - which really is a bang.