Do any of you know if a group might have started developing this? http://www.scaled.com/projects/tierone/index.htmSure would be a great payware project...

I've heard of at least two working on them. One of the "trade" magazines had decent 3-views and reasonable information.I don't know the status of it.The problem is that not too much "hard" information has come out so flight dynamics, etc. would be a "guesstimate".Felix/FFDSPegasus Aviation Design