Quite a few variants have been produced around the fighter’s lifespan. These have involved the T-45A, that is a two-seat variant also utilized by the US Marines, and also the T-45C, an upgraded Model with a glass cockpit and other augments, which currently serves to be a model for T-45s https://nikolajsen-acevedo.mdwrite.net/an-unbiased-view-of-when-fighting-in-vietnam-american-soldiers-1726652114