No I am not good with photoshop!!
I don't have a clue what these can do or are ment to do. Maybe mr. Deboichet is trying to push limits, or he is just trying fooling some guys. A lot of work for a joke... This fin (beside the little foil) looks to me as a Deboichet SL4
Some short thoughts
- Maybe he is looking for more surface vs lenght?
- a better momentum?
- maybe like the mirrors of a f1-car... optimilisation of flow in extreme conditions
Still I think it is a 'late' 1 April joke, does anyone know more?