10:01 a.m. While a search was made for the track of the torpedo and for signs of the wake of the submarine, nothing was seen. The convoy, in the meantime, under the direction of the commodore, had zigzagged to the left by using starboard helm and was already some distance away. "Secure" was sounded at 10:20 a.m., and Ossipee and the danger zone escort vessels that had been searching for the enemy U-boat proceeded at full speed to rejoin the convoy. Torpedo near miss The same day, at about 5:06 p.m., another attack was made on this convoy, the wake of the torpedo being seen in the midst of the ships in convoy about distant. The torpedo, continuing its course, passed almost directly under the stern of Ossipee. It passed about astern of the commodore's ship and harmlessly through the convoy. The general alarm having been sounded, Ossipees crew stood to general quarters at the first sign of the enemy torpedo. A slick, apparently that of the submarine, was seen about off the starboard beam of the cutter. The ship was turned rapidly and, running over the spot, two depth charges were dropped. At no time did the submarine make an appearance. The search was continued until 5:45 p.m. Full speed was ordered and Ossipee overtook the convoy, and the course was continued to Gibraltar without further incident. The danger zone escort joined with the convoy on 21–22 December and the whole fleet arrived at the base on the latter date. Refit at Gibraltar During the stay at Gibraltar, new and improved releasing gear was installed on the cutter. This was intended to make the cutter more effective in combating U-boats with depth charges. A few weeks prior, Lewis guns had been supplied. Ships in convoy sunkOssipee continued cruising between Gibraltar and British ports until 10 March 1918, when she was sent with a convoy from Gibraltar to Bizerte. The squadron arrived on 16 March. Leaving on 16 March with her nineteenth convoy bound for Gibraltar, the convoy was attacked at 6:30 p.m. the next day. The steamer Ivydene was torpedoed and sunk. At 1:25 a.m. on 18 March, the steamer John H. Barry was also torpedoed and sunk. Ossipee, being with the convoy, but some distance from the ships attacked, did not see either of these. It was learned, however, that these two ships bad been sunk and that