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 Academy" that "if you enjoy space combat simulations, you must have this game. Period". The magazine approved of the "absolute ball to play" game's improved graphics, and the mission builder, and concluded that ""Academy" is a tremendously exciting game, one which provides many, many hours of play and replay". The 1994 survey gave the game three stars out of five, stating that it was "For those who don't need a plot". Wing Commander II: Vengeance of the Kilrathi Wing Commander II: Vengeance of the Kilrathi is the first sequel in Chris Roberts' "Wing Commander" science fiction space combat simulator franchise