Thank you for your interest!
I like the prototypes, and planes strangely shaped in general!
These are often largely neglected of the development of aviation in the First World War. There have been so many, often very interesting! What effervescence of engineers!
jamieg: Your comment is interesting for me because I would like to close today.
Des: I have read and watched the subject by Ratio. It is in my favorite pages because its mounting responds to many of my questions, and is very pretty. My understanding is that ratio had set too low cockpit. He rectified, but does not mention that the location of the seat is too low.

. Maybe he will know tell me if he reads this interrogation

.
Xan: This prototype was designed in 1915 as a competitor of the Fokker monoplane! (hahaha). It was to be a high-speed fighter. The design had to meet a desire for dynamic drag to a bare minimum. The speed could reach 180 km / h, but it was too high take-off and landing.
I'm sorry I master English with difficulty!!
Best Regards
Arnaud