Focke-Wulf Project VIII
Focke-Wulf Project VIII was a design study for a turboprop-powered fighter-bomber, undertaken in Germany during World War II.Development
It was based on the work previously done on Project VII, nicknamed the Flitzer. Project VIII was for an aircraft very similar in shape. The performance was calculated to be much better, but the unswept tail surfaces were predicted to cause problems at high speed, and the project was abandoned.
Some sources refer to this design as the Fw 281, but this is unconfirmed.