Translations:Rocket Ejection Charge Calculator/9/en

There are some rules of thumb that can be applied based on years of experience from multiple rocket builders. Of primary concern here is the force applied to the ejectable portion, typically the nose cone or electronics bay. Ejection forces at this interface should be between 150 and 200 lbf (~667 to 890 N). The pressure required can then be calculated based on the volume of the chamber. This pressure will be less for larger diameters and more for smaller diameters. There are presets in the calculator to set these forces (low and high settings in the combobox).