This sounds like an interesting idea, organized by a Spanish modeling group.  Flying Lines has the links to the web site and info. The idea is to send photos of the model and details, plus a video of it flying.  These materials will be judged to determine the winner.

http://flyinglines.org/Action.html

John

You are right, I think. I always have those FAI classes confused.  More or less equivalent to AMA Precision (Designer) Scale, or whatever that's called now.

I have not had a chance to read through the materials yet, just saw this late last night while being kept awake by an ongoing sinus infection.

John