Optimist Posted May 7, 2017 Share Posted May 7, 2017 Column of gas under pressure acts like a spring. Math says it's a spring. That's what didn't get discussed in the earlier examination of the problem. The nature of the springiness of the gas column (?) (my old English teacher would not like that construction, I 'spect....) in the short pistol length systems is much stiffer, at 20Kpsi gas in the column than the longer rifle length tube at 5Kpsi pressure at the tap. Short, stiff spring is going to give a mechanical system a totally different 'feel' than a longer, more limber one. Link to comment Share on other sites More sharing options...
MotorMouth Posted June 16, 2017 Share Posted June 16, 2017 excellent post Link to comment Share on other sites More sharing options...
PRanta Posted June 24, 2017 Share Posted June 24, 2017 On 7.5.2017 at 8:38 PM, Optimist said: Column of gas under pressure acts like a spring. Math says it's a spring. That's what didn't get discussed in the earlier examination of the problem. The nature of the springiness of the gas column (?) (my old English teacher would not like that construction, I 'spect....) in the short pistol length systems is much stiffer, at 20Kpsi gas in the column than the longer rifle length tube at 5Kpsi pressure at the tap. Short, stiff spring is going to give a mechanical system a totally different 'feel' than a longer, more limber one. Would be true if not connected to much bigger vessel i.e. the barrel. Link to comment Share on other sites More sharing options...
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