Renowned German aviation specialist Manfred Griehl has collected a unique and valuable selection of photographs of Luftwaffe projects that never made it into battle. They remained on the drawing board or at prototype stage because either they were deemed unsuitable or, as is the case with most of those in this selection, the developers simply ran out of time and the projects never went into production. This fascinating insight into the aviation science of the Third Reich includes rare photographs of Germany?s secret planes.