Complex sentence: One Handley Page dropped out for mechanical reasons, but the NBS-1s dropped six bombs in quick succession between 12:18 pm and 12:31 pm, bomb aiming points were for the water near the ship.
Split into simpler sentences: One Handley Page dropped out for mechanical reasons, but the NBS-1s dropped six bombs in quick succession between 12:18 pm and 12:31 pm. Bomb aiming points were for the water near the ship.