The very first simulation book I bought had real-time physical airplane Matlab SimuLink models, about 20 years ago. These are the hard models with 6 degrees of

The very first simulation book I bought had real-time physical airplane Matlab SimuLink models, about 20 years ago. These are the hard models with 6 degrees of freedom. Engine simulation was much easier, gearbox a bit harder. But these kind of engine, vehicle, airflow simulations are bread and butter in the industry. Everyone has them.