Sorry to come back to this topic, but the way the drag is calculated is so wrong.
I have the following parameters set in the flight_model.cfg:
drag_coef_zero_lift = 0.029
lift_coef_at_drag_zero = 0.5084
induced_drag_scalar = 4.5 (this is on purpose and based on real world data
oswald_efficiency_factor = 0.813
AR of the wing is 7.95
According to this, the expect drag is:
Cd = 0.029 + 4.5 * 0.049 * (Cl - 0.5084)²
However, when in the simulator, here is the obtained drag: Cd = 0.09238
It should be, for the Cl of 0.60028 visible in the screenshot: Cd = 0.03086
Please, don't say this is because of the scalar. It is because the other_drag is adding 0.0615, on top of the correct calculation.
This is roughly equal to the NEW FM zero alpha drag value, visible on the screenshot below:
Could this get fixed ASAP? It really hinders the development of quality and real life data based FM...