the surface of the waves. Unable to accurately determine the depth of the vessel, Haggins and Ferr radioed the situation back to base and followed the enemy in hopes that it would rise to periscope depth. For three hours, the crew shadowed the submarine. Just as Haggins was about to return to base, the U-boat rose to periscope depth, and Haggins swung the aircraft around, aligned with the submarine and dove to . Farr released one of the two depth charges, blowing the submarine's front out of the water. As it left an oil slick, Farr made a second pass and released the other charge. Debris appeared on the ocean's surface, confirming the U-boat's demise and the CAP's first kill. Postwar operations After the war, Grumman redesigned the aircraft to make it more suitable for civilian operations. A new hull improved its water handling, and six seats were installed. In total, 76 of the new G-44As were built by Grumman, the last being delivered on January 13, 1949. Another 41 were produced under license by the (SCAN) in La Rochelle, France, as the SCAN 30. Most of these ended up in the United States. McKinnon Enterprises at Sandy, Oregon, converted over 70 Widgeons to "Super Widgeons". The conversion features replacing the engines with Avco Lycoming GO-480-B1D flat-six piston engines, and various other modifications, including modern avionics, three-bladed propellers, larger windows, improved soundproofing, emergency exits, and increased maximum takeoff weight. Retractable wingtip floats were optional. Variants G-44 Main production variant, 200 built (serial nos. 1201–1400) including J4F series military variants listed below. G-44A Improved postwar production variant with redesigned hull, 76 built (serial nos. 1401–1476.) J4F-1 G-44 for the United States Coast Guard with three seats, 25 built. J4F-2 United States Navy version of the J4F-1 with 5-seat interior, 131 built. OA-14 Fifteen G-44s impressed into wartime service with the United States Army Air Forces. OA-14A One new aircraft for the Corps of Engineers. Gosling I Fifteen J4F-2s transferred to the Royal Navy, later renamed Widgeon I SCAN 30 G-44A Licence-built in France using Metric standards and not Anodized as were original Grumman-built aircraft, 41 built (serial nos. 1–41.) PACE Gannet Pacific Aerospace Engineering Corporation conversions of S.C.A.N. 30s, powered by Lycoming R-680-13 radial engines. Later known as the Gannet Super Widgeon Operators Military operators Brazilian Air Force operated 14 from 1942 to 1958 Cuban Navy received four in 1952 Israeli