Without flaps, at 6 and 10 degrees of AoA the gliding ratio is 9.1 and 6.2, respectively. Without CAS, plane is hard to fly because there is not much yaw-related stability. Roll can cause enormous sideslip and plane is prone to enter spins. However, flying or even landing is not impossible. Some more details about the model 6 DOF, quite high-fidelity flight model.
Flaps work as a function of alpha and airspeed.
Landing gears modeled. The effectiveness of speed brake depends on alpha. Engine model Engine is modelled as parts. The variables affecting the behavior of the engine are Mach number, ambient temperature and pressure, and throttle ratio. In addition to these 'control' variables the result depends on many engine specific design constants.