# Physics of spring airgun cylinder system?

by StrSpeed
Tags: airgun, cylinder, physics, spring
 P: 1 So recently I became more interested in CAD and i found myself drafting designs for spring airguns cylinders ect. All of-course meaningless given that I have zero understanding of the math behind the design. I am no Mechanical engineer, I am a business student so if im getting into advanced stuff here let me know but I still intend on giving it my best.. /end rant/ Essentially I would like to understand how to calculate the pressure in a system when a Force of 550 Newtons is applied to it. System volume: 37464 Piston(Right Cylinder) Volume: 24543 mm Barrel(Right Cylinder) Volume: 12921mm Change in Volume at piston peak: 24543 The gas inside the system is at sea level atmospheric pressure I have also attached an image for reference! if I am leaving anything out please let me know and Ill attempt to elaborate more!
 P: 2,861 If the 550N force is the force at the end of the stroke then the pressure is simply force divided by piston area.

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