Category: EMS

Building the faceplate for the EMS was more challenging than just a basic control panel. Not only did it have several dimensional aspects to it, I also had to mount the four circuit boards to it. Like the other control panels, this started with a base of hardboard overlayed with

Now that the circuit design was complete, I needed to translate it from the breadboard to a permanent circuit board. Prototyping circuit boards are usually pretty expensive, but I got a stack of them from an eBay seller for a decent price. Good thing, too, because it looked like the

Now that I had the countdown displays working, I really wan’t content with not simulating any other aspect of the EMS. I could simulate the orientation lights fairly easily, but how could I simulate the scrolling graph? I really didn’t want to create a motorized assembly that would really scroll

Aside from the AGC (Apollo Guidance Computer), one of the key pieces of equipment in the Apollo Command Module was the Entry Monitor System, or EMS. This device had a few specialized functions, but arguably the most important was to monitor the speed and position of the CM during reentry