 In the days following the attack on Pearl Harbor , Roddenberry received a telegram with orders to attend Kelly Air Force Base , enlisting on December 18 , 1941 . Following the completion of boot camp , he was sent to Corsicana , Texas for pilot training by civilian instructors . He completed sixty hours of flight time there , including thirty @-@ two solo hours . In March 1942 , he moved to Goodfellow Field ( now Goodfellow Air Force Base ) in San Angelo , Texas for basic flight training where he flew a Vultee BT @-@ 13 Valiant . Roddenberry graduated on August 5 , and was commissioned as a second lieutenant . 
