Michel

Thank you Tom and Morten for your time to answer! Insightful answers, very much answers my question. So does that mean that geometry the user sees in the sim is not the same geometry that X-Plane runs the calculations on? Morten, what you write makes we wonder: If you have to create some "strange" airfoils and models in order to get it right, isn't that in a way against the philosophy of X-Plane? Don't get me wrong, I'm a huge fan of the approach X-Plane takes, I'm just interested in how things work and why things are done in a certain way. My own guess would be that the approach X-Plane takes (i.e. give it a model and get the result "for free") works reasonably well for standard aircraft configurations and flight regimes. While that is a major strength of X-Plane (anyone can create aircraft or you could even use it as a priliminary design tool) it doesn't really cut it anymore for the precision that IXEG is looking for.

As far as I understand the deeper workings of X-Plane, the sim computes forces and moments based on the geometry of the aircraft, right? My question is: do you guys as developers "only" have to create a highly accurate model of the aircraft and then give it to X-Plane? As in, the sim will take care of the rest and create an accurate dynamic behavior of the aircraft? I find it hard to believe that X-Plane is THAT accurate. After all, CFD software used in the aerospace industry needs hours to complete computations on one flow condition, while X-Plane does it 30 times per second. I understand that the desired accuracy is a lot lower but still... It would be awesome if you could give us some insight into that! How do your tune your model to behave like the real thing?

I'm going to buy X-Plane JUST for this aircraft. Guys, keep up the work and all the best.