Original sentence: The first GAM-77 Hound Dog missile assigned to the Strategic Air Command was carried aloft for the first time on Friday, 29 January 1960, aboard a B-52G Stratofortress of 4135th Strategic Wing, commanded by Capt
Edited sentence: The first GAM-77 Hound Dog missile assigned to the Strategic Air Command was carried aloft for the first time on Friday, 29 January 1960, aboard a B-52G-75-BW Stratofortress, 57-6472, c/n 464177, of 4135th Strategic Wing, commanded by Capt