I would like a Kerbal Space Program esque aircraft design + fly game. We already have very sophisticated dynamical models for how airplanes fly (which are deft

I would like a Kerbal Space Program esque aircraft design + fly game. We already have very sophisticated dynamical models for how airplanes fly (which are deftly integrated into flight simulators) but no way of designing custom airframes. I'm thinking that you design an aircraft: choose wing cross section shape, taper, sweep, position, control surfaces, etc. You could choose materials (ok maybe no aeroelastic stuff, just weight and failure from stress). Then you can fly it around for fun in a realistic simulator, combat with other players, or some other mission (range? transportation aircraft? etc.)