I've mentioned this a few times recently, but although it's something old, I don't believe I've ever really introduced it properly. VCT was something I started almost 20 years ago, but when the VB6 programming tools became obsolete, it languished and was never finished. I always meant to move it to another language, but that never happened. For many years I believed that the VCT program didn't run on later Windows systems. However, it seems that it does run at least on Win7 and Win10 (haven't tried others), and the parts of VCT that were finished are pretty useful. So I'm going to take this thread to introduce the tools of VCT. The VCT splash screen - I was surprised to see that this dated back to 2001. The VCT main screen: Here you can see the tools that are available and the unfinished grayed-out tools that I had intended to include. Many of the unfinished tools actually had a lot of work done on them, and the code for those tools may still exist in the source, but they were never finished in a ready-to-use state. The finished tools that are available are: Fin Radial Position - AKA Fin Alignment Guide. Tube Miter Template - template guide to cut a tube at an angle. Tube Coupler - a silly little guide to tell you how much to slice out of a tube to make a coupler to fit inside that tube. Shroud - usual tube-to-tube shroud template generator. Altitude Tracking - remember trackers? Static Port Sizing - calculator for number and size of altimeter port holes. Ejection Charge - ejection charge and seperation velocity calculator. The installation file for VCT is attached to this post, and each tool will be detailed in the following posts.