[joegertler]

Hi Kees;
I am thinking that mentioning the distinguishing feature that helped ID the aircraft would be very important in distinguishing one Sopwith (or others) from another. But I assumed it is fairly obvious that the distinguishing features here-the wing shape and the open fuselage helped to ID the Dorner so quickly.
But a point to be observed in future challenges is now emphasized.. Up to Breguet, of course.