Rocket Design Software

Rocket design software uses the aid of a computer to determine the design of a rocket, static and dynamic stability, altitude, drag coefficient, and more.

While it is possible (and probably good) to do all the calculations with paper, pencil and calculator, if you deside you want to make one small change to see what effect it would have, your going to have to do it all over again by hand. There are many benefits to rocket design software, but that is probably the best.

Which program is the best? There are two main competetors that I know of:


Comparison of RockSim and SpaceCAD

What I'll do is design and run a simulation of the same rocket using RockSim and SpaceCAD to compare features.

First let's take a look at the overall interface of each program.


The interface of RockSim is very user-friendly and intuitive. The user inputs the rocket specs in the upper portion of the window, and the program draws it in the graphic box below. It is very easy to run simulations by loading a motor file and clicking the launch button. That's all you have to do, and the program does everything else.

There are many controls on the main screen of SpaceCAD. At a first glance it is harder to assess how to use the program, but with a little bit of tinkering it becomes apparent.

I have come to think that SpaceCAD's interface is a little more complicated than RockSim's, and it isn't even as powerful. (I may be biased: I really like RockSim). But SpaceCAD is much cheaper than RockSim, and so still might be just as good a deal as - if not better than - RockSim.

SpaceCAD design file

RockSim design file

Also, the simulation results aren't as easy to read in SpaceCAD, but you can do it. RockSim even goes as far as to provide the user with an animation of their rocket's flight profile!

In short, I suggest that SpaceCAD can do most of the things RockSim can do, but RockSim does them better.


-SpaceCAD - $59.90

-RockSim - $108.95


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DTH said...

Hey buddy ..Great show...i use blender for the purpose..and it works great for 3D that any differnt from this Porgram

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