RockSim - Apogee Components' design and simulation software for Windows 95 and higher. Free demo version available for download. This software also comes with EngEdit, a program for creating ".eng" thrust curve motor files. Teachers: Click Here to find out the benefits of using RockSim in your classroom, and 30 topics that can be taught using this awesome tool.

Motor Definer Program for RockSim A program to create thrust curves for clustered motors, or for delayed staging. (Freeware)

http://members.aol.com/BULLPUPP/PROGRAMS.html program for calculating and printing shroud patterns.

http://www.42nd-dimension.com/Rocketry/postscript.html Contains a couple of programs for Windows. Transition Template -- TRANSITION.PS will draw  templates to create transition cones from one diameter to another.  Sizes can be specified in inches, millimeters, or even part numbers such as BT20. Mitered Tube / Fin Alignment Template -- WRAP.PS will draw templates designed to be temporarily wrapped around body tubes for marking purposes.  You can specify a number of fins and the wrap will contains evenly distributed marks similar to the Estes guides.

http://members.aol.com/_ht_a/rocketweb/resource/programs/archives.htm Site that contains more rocketry software you can download.

http://aero.stanford.edu/WingCalc.html This Java application computes the lift and Cl distribution over a wing with sweep and twist.

Article in three parts in this newsletter will give you the theory and application of how rocket simulation programs work. Part 1, Part 2, Part 3