Summary: Ground power units are versatile tools that are worth the investment. Many aviation enthusiasts have all the basic maintenance tools on hand like wrenches and a trusty tool box. However, if you’re looking to perform tasks on your own without having to have a mechanic take a look at your plane every week, it’s recommended that you purchase one of the most important tools that you can have in your arsenal – a ground power unit. What’s So Important About a GPU? Ground power units are designed to supply power to your aircraft without you having to rely on your onboard auxiliary power unit. So, when you’re parked and…