The Focke Wulf 187 Falke (Falcon) was a single seat heavy fighter that on paper had a lot going for it but which lacked a role in the Luftwaffe’s doctrine.
Playlist - heavy fighter

The Fokker G.I Heavy Fighter; Dutch Grim Reaper
The Fokker G.I heavy fighter is one of those aircraft that despite huge amounts of promise was never able to fulfil its potential.