Various variants are actually generated in excess of the fighter’s lifespan. These have incorporated the T-45A, which is a two-seat variant also utilized by the US Marines, as well as T-45C, an upgraded version with a glass cockpit and other augments, which currently serves as being a model for T-45s https://www.metooo.it/u/66ea9c43f2059b59ef3b19b1