 Schreder and his crew were initially disappointed when the depth charge did not explode on impact, and that it merely lodged itself into the teak planking of the deck.However, they continued to circle the site after the U-boat submerged, and observed that the charge detonated after the sub carried it down to its pre-set trigger depth.After leaving the Navy, Schreder founded a successful drafting supplies business in Toledo, Ohio, and later moved it to Bryan, Ohio.