Blohm & Voss BV 141
Three prototypes and an evaluation batch of five BV 141As were produced, backed personally by Ernst Udet, but the RLM decided on 4 April 1940 that they were underpowered, although it was also noted they otherwise exceeded the requirements. By the time a batch of 12 BV 141Bs were built with the more powerful BMW 801 engines, they were too late to make an impression, as RLM already decided to put the Fw 189 into production. Indeed, an urgent need for BMW 801 engines for use in the Fw 190 fighter aircraft reduced the chance of the BV 141B being produced in quantity.
Vogt came up with several other asymmetric designs, including the piston-jet P.194.01, but none of those were actually built.
Model Scale 1:42