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
The Girl Who Was Plugged In society, making her unable to form emotional connections or experience love until her disembodiment and re-embodiment as Delphi. Consequently, P. Burke feels more human in the beautiful vessel Delphi than in her own body, because society finally accepts and recognizes her existence. In other words, P. Burke is dependent on technology to be able to participate in society. While Hollinger reads "The Girl Who Was Plugged In" through the ideological lens of gender as a performance, Hicks believe Tiptree connects female disembodiment with women's relationship to technology. Delphi, made for the sole purpose of advertising, is the living example of