The TR-3B is Code named Astra. The tactical reconnaissance TR-3B first operational flight was in the early 90s. The triangular-shaped nuclear-powered aerospace platform was developed under the Top Secret, Aurora Program with SDI and black budget monies. At least 3 of the billion-dollar-plus TR-3Bs were flying by 1994. Aurora is the most classified aerospace development … Continue reading The USAs Most Secret Plane — TR-3B Patent is Now in the Public Domain