Flying From Bergstrom Air Force Base In Austin, Texas, To Carswell Air Force Base In Fort Worth, Texas One Bright Moonlight Night, I Was Taken With The Jewel-Like Quality Of The Small Towns Over Which We Were Flying. One Night I Saw A B-47 Make A Perfect Arc Around The Moon, And Another One Was Coming In On The Moon At 4 Oclock. The Contrails Were Perfect. Thus, Night Mission For Sac Had Its Inspiration.