The precursor to CAD: Paper Aided Design (PAD). Some people like yellow. I used white with lines here:

Before buying any materials I launched Apogee's Rocket Sim 4.0 and started some CAD and launch simulations. Here is VidRoc Modeled:

VidRoc w/M1419
(RocSim 4.0)

Once again, you can see how similiar the Tomahawk missle is to Vidroc. I didn't plan it this way. I just started building and ended up that way.

Thiokol's TE416-Tomahawk

It is exhilarating to model and simulate in RocSim. I find the program to be very useful in designing rockets. You can find out more about the program here: www.apogeerockets.com.