Boeing XB-38 Flying Fortress Boeing XB-38 Flying Fortress The XB-38 Flying Fortress was a single example conversion of a production B-17E Flying Fortress, testing whether the Allison V-1710 V type engine could be substituted for the standard Wright R-1820 radial engine during early World War II. The XB-38 was the result of a modification project undertaken by Boeing and Vega (a subsidiary of Lockheed) on a B-17 Flying Fortress to fit it with liquid-cooled Allison V-1710-89 Vee engine. It was meant as an improved version of the B-17, and a variant that could be used if air-cooled Wright R-1820 radial engines became scarce. Completing
The Kingdom of the Netherlands During World War II volume 7 how his family fared during the war, and reflected on his family's history in volume 12. The Kingdom of the Netherlands During World War II The Kingdom of the Netherlands During World War II () is the standard reference on the history of the Netherlands during World War II. The series was written by Loe de Jong (1914–2005), director of the Dutch Institute for War Documentation ("Nederlands Instituut voor Oorlogsdocumentatie", or NIOD), and was published between 1969 and 1991. The series contains 14 volumes, published in 29 parts. De Jong was commissioned to write the work in 1955