Knowing the scale of ships can be crucial in judging their range in combat. Below, you will find an image of exact scale ships, engines, and the male player character for reference. There are also individual ship features.
The images are quite large. They are grayscale png format to reduce file size while retaining the crisp lines needed for measuring. In order to measure individual ships, import the image into any program that allows you to measure pixels. I use GIMP with the selection tool (which tells you how large the selection is) or the measure tool. Once you have the pixel count, divide by 20. This will give you the dimension in meters.
You are free to use the silhouettes or images in your own projects.