I think I didn't express very well what I meant to say. I'm sorry.
No, I don't expect it to be a full-fledge simulator, but I do expect the demo to show off the JSBSim's realistic flight handling characteristics. I didn't mean I expect the demo to include a full fledged helicopter with all systems, what I meant was that if you come out with a product, and you make it a simple switch between realistic and...lets say not so realistic, then this cannot simply include the flight handling. I don't think whoever wants to fly with mouse/keyboard will want to deal with fuel-pumps for instance. Most likey they will want to press the up key or whatever and climb away.
So what I meant was, if you want to do this, then you will essentially need two diff vehicles, yes, you can probably keep the same external model, but everything else will differ to such extend that its basically a different vehicle. I know its just an engine, but you or a partner of you will hopefully build a game out of it in the future. And if that game goes the direction of every vehicle is switchable between simple and realistic handling, then I don't see this working. I think you will need two diff. vehicle types/classes whatever you want to call them.
Also, I'm not offended :-)