VAK stands for the German equivalent of VTOL/reconaisannce/strike fighter and the 191B was intended to operate after a Soviet first strike on West German airfields. The type was intended to eventually serve as a replacement for the Fiat G.91 but, after suffering from a protracted development cycle, the focus of programme development was changed to test-fly a limited number of prototypes, using the VAK 191B effectively as a technology demonstrator and experimental aircraft for VFW. A total of 91 flights were performed prior to the retirement of all three prototypes in 1975.

The VAK-191B is an experimental German vertical take-off and landing (VTOL) strike fighter from the early 1970s that was developed to eventually replace the Italian Fiat G.91 in GAF service. However, development was extremely protracted and difficult so VFW took the decision for the VAK-191B to effectively become a technology demonstrator and experimental aircraft to support the company's other activities and future programmes. A total of 91 flights were performed prior to the retirement of all three prototypes in 1975.

[Nikon D300 + Tokina 12-24mm/4]