Graeme
If this was an Olympic sport, do you think the "difficulty factor" is killing participation?
I personally think that has been the case. As I said before I found the production of the silhouette too much of a hassle and therefore my involvement has been minimal over the years. It has not always been possible to find three view diagrams of interesting subjects.
This one has a Mexican involvement but the aircraft was not built in Mexico. But not the Curtiss Robin.