RE: Northrup N9MB Flying Wing RC model?
Bill Young did one for two Astro cobalt 05s and extension shafts in the late lamented Model Builder magazine about 15 years ago. The plans were pretty sketchy. This one has been on my someday list for a very long time and now that I have a Multiplex Evo I could easily define servo motions to do the drag rudders properly without resorting to a bunch of mechanical complication..... I need to revisit this idea.
Bill Northrop's plan service should have the plan as he still sells the entire catalog of plans from Model Builder, as I understand it.
It's Northrop, by the way.......for the maker of the plane as well.