[Marc-André Haldimann]

Hi there Franck, Roland, mermet and The_Ivan,

Back from a field trip in the Alps, I read all your comments and thank you for them. As a matter of synthesis, I feel now pretty safe thinking this fuselage is a WNF Bf 109 G-6 with those layout prototype "Beulen" and other improvements like the rear fuselage access and fuel filler point similar to the future Bf 109 K-4 model.

It can't be an Erla fuselage with the flat lateral panel under the left windshield mating up with the bigger bulge, mermet, as clearly shown on all exterior pictures. So back to basics, alias Bf 109 G-6;-))

Thanks for all your inputs
Marc