Heavy bomber version of the bouncing bomb, was used to destroy the Mohne and Eder dams by Lancasters from the specially recruited and trained 617 Squadron, often known as the Dambusters, under Wing Commander Guy Gibson. In March and April 1945, as the war in Europe was ending, Lancasters dropped Grand Slams and Tallboys on U-boat pens and railway viaducts across north Germany. At Bielefeld more than of railway viaduct was destroyed by Grand Slams creating an earthquake effect, which shook the foundations. The Boeing B-29 Superfortress was a development of the Fortress, but a larger design with four Wright R-3350 Duplex-Cyclone
Wing Commander II: Vengeance of the Kilrathi and "2", were released in 1991 and 1992, respectively, and a stand-alone spin-off, "Wing Commander Academy", in 1993. Origin also released a "Speech Accessory Pack", which upgraded "WCII" with pre-recorded voice acting. A port for the SNES by Fujisankei Communications International was announced for May 1995, but never released. The year 2656. The TCS "Tiger's Claw", pride of the Terran Confederation's fleet, is on campaign in the Enigma sector, near the Kilrathi sector headquarters, the "K'tithrak Mang" starbase. In a sudden attack, it is lost with all hands, save a few pilots who had been transferred off, and one who