Calculate the Area of a Circle
Area = pi x r ²	Pi (already entered by default)	Enter the Radius
The Area =
Caclulate the Volume of a Cylinder Note: This uses the area from the above calculation
Volume = pi x r² x L	Enter the Length -->
The Volume =

Calculate the Real Volume of the Pressure Chamber
Chamber Volume - Nested Barrel Volume = Factored Volume	Enter Chamber Volume	Enter Nested Barrel Volume
Factored Volume of Chamber =

Calculate the Chamber to Barrel Ratio
Ratio = Chamber Volume / Barrel Volume	Enter the Chamber Volume	Enter the Barrel Volume
The Ratio =

Calculate the Muzzle Pressure of the Gun
Set Values: Chamber Presure : P_c Barrel Pressure : P_b (@ the muzzle) Average Pressure : P_a Chamber Volume : V_c Barrel Volume : V_b Chamber Pressure : 100 psi	P_b = (P_c x V_c) /(V_b + V_c)
	Enter the Chamber Volume	Enter the Barrel Volume
	Enter the Chamber Pressure
Muzzle Pressure =

Calculate the Average Pressure of the Gun
Average Pressure = (Chamber Pressure + Muzzle Pressure)/2	Enter the Chamber Pressure	Enter the Muzzle Pressure
The Average Pressure =

Calculate the Average Force on the Projectile
*Average Force = Average Pressure Area of End of Projectile**	Enter the Average Pressure =	Enter the Area of Projectile
Average Pressure =

Highly Modified from
Free JavaScripts provided
by The JavaScript Source

This page, the JavaScript, page, and its' source code, the PyroCookbook, and the PyroCookbook logo are all Copyright Rusty Tracey 2002