Version: *1.36.2.0
Frequency: Consistently
Severity: Low
Context: SDK description incorrect
Bug description: The SDK says that the wing_winglets_flag parameter in the [Airplane Geometry] section of the flight_model.cfg file is a legacy FSX parameter not used in the modern flight model. However, as shown in the attached screenshots, this is incorrect. The only difference in the flight_model.cfg file used in the attached screenshots is whether the wing_winglets_flag is set equal to zero or one.
As can be seen in the drag debug window, there is a term in the “target cd” equation for “wingledcd.” I assume this is supposed to be “wingletcd.” Note that it’s value is zero when the wing_winglet-flag is set to zero, and it is non-zero when the wing_winglet_flag is set to 1.
Also, note that the total drag is actually lower for the non-winglet case than for the winglet case, which is a bit paradoxical.
Repro steps: Establish a steady-state unaccelerated, level, straight flight cruise condition. For the same conditions (weight, speed, altitude, cg, atmospheric parameters, etc.) compare the drag with the wing_winglets_flag set to zero to the drag with the wing_winglets_flag set to 1.
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