The Low Altitude Bombing System ( LABS ), or toss bombing, tactic was first made public in front of a crowd of 3, 000 including 11 state governors on 7 May 1957 at Eglin AFB, when a B 47 Stratojet entered its bombing run at low altitude, pulled up sharply ( 3.5 g ) into a half loop, releasing its bomb under computer control at a predetermined point in its climb, then executed a half roll, completing a maneuver similar to an Immelmann turn or Half Cuban Eight.