June 29, 2025, marks the 70th anniversary of the first operational Strategic Air Command (SAC) B-52 Stratofortress delivery to the 93rd Bombardment Wing (Heavy) at Castle Air Force Base, Calif. The aircraft, RB-52B (52-8711), departed the Boeing Moses Lake testing facility at Larson AFB, Wash., and performed a seven-hour training mission prior to the delivery to Castle AFB.