An alternative was the Messerschmitt Me 155B, a long-winged development of the Bf 109 which had already undergone several stages of design and would ultimately be built in prototype form by Blohm & Voss.
Ďalšou alternatívou bol Messerschmitt Me 155B, čo bol upravený Bf 109 s dlhšími krídlami, ktorý už v tom čase prešiel viacerými skúškami a bol ako prototyp postavený firmou Blohm & Voss.