The complete Mark - 12 bomb was 22 inches ( 560 mm ) in diameter , 155 inches ( 3.94 m ) long .
The complete Mark - 12 bomb weighed 1,100 to 1,200 pounds ( 500 to 540 kg ) .
The complete Mark - 12 bomb was 22 inches ( 560 mm ) in diameter , 155 inches ( 3.94 m ) long , and weighed 1,100 to 1,200 pounds ( 500 to 540 kg ) .