Update! MSFS2020 - Salty 747-8 + Flight Dynamics Bug Workaround Mod - V.1.14.6.2

Flight model modification version  V.1.14.6.2

MSFS 2020 version 1.14.6.0 aka WU3 "tuned" the Asobo flight models from non-realistic to even more non-realistic. I think it was a side effect of "Improved flaps system of aircraft : Aircraft creators can now move the wing surface’s position and camber with each flap system at each flap level"

The workaround for the "flaps bug" is "go into the flight_model.cfg and divide the flap lift by 2x (there are several possible scalars for that purpose: lift_coef_flaps or lift_scalar)". I apply the "flaps bug workaround" to the airliners because Asobo made it clear that there will be no hotfix: "if we should address this via a hot fix as quickly as possible, but ultimately believe that the better approach is to implement the fix ... (coming early March)".

Additionally I corrected the 747-8 maximum lift-drag ratio (L/D)max to a more realistic value of 15.5 at level flight without elevator input. The (L/D)max change makes other changes necessary.

To all critics of my work: I am an armchair pilot. If you only accept flight model mods from real life 4-stripes pilots, don't install my mod (Yes, I got a comment from somebody requesting such a disclaimer). Everybody else: Stay happy and healthy!

lift_coef_flaps = 0.5581 ; 1.11620

See above.

drag_coef_zero_lift = 0.0265 ; 0.02300

Bring (L/D)max to a realistic 15.5.

induced_drag_scalar = 1.5 ; 1

flap_induced_drag_scalar = 1.5 ; 1

"a value between 1.2 and 1.5 is usually fine. If this value is above 1.5, the plane will generate a lot of drag a slow speed. If the value is closer to 1, it will glide very easily at slow speeds." from MSFS SDK/Documentation/01-Getting_Started/Tutorials/02-Flight_model_definition/

cruise_speed = 504 ; 493 ; Knots True (KTAS)

thrust_scalar = 0.70 ; 0.85

Bring sea level level flight maximum airspeed to cruise_speed.

wing_incidence = 2 ; Wing incidence (DEGREES)

htail_incidence = -3.5 ; 0 ; Horizontal tail incidence (DEGREES)

Have no trim for design cruise speed Vc level flight.

point.0 = 1,    -5,      0,   -15.7,  720, 0, 2,  90, 0.9,  2,   0.5,  9, 8, 0, 220, 250, 2 ; 1,    -5,      0,   -15.7,  720, 0, 2, 60,   0.9,  2,   0.5,  9, 8, 0, 220, 250, 2

point.1 = 1,  -102.5,  -17,   -16.9, 1500, 1, 2,   0, 1.36, 3,   0.5, 11, 9, 2, 220, 250, 2 ; 1,  -102.5,  -17,   -16.9, 1500, 1, 2,  6.5, 1.36, 3,   0.5, 11, 9, 2, 220, 250, 2

point.2 = 1,  -102.5,   17,   -16.9, 1500, 2, 2,   0, 1.36, 3,   0.5, 11, 9, 3, 220, 250, 2 ; 1,  -102.5,   17,   -16.9, 1500, 2, 2,  6.5, 1.36, 3,   0.5, 11, 9, 3, 220, 250, 2

point.3 = 1,  -102.5,    0,   -16.9, 1500, 0, 2,   0, 1.36, 3.5, 0.8, 11, 9, 3, 220, 250, 2 ; 1,  -113,      0,   -16.9, 1500, 2, 2,  0,   1.36, 3.5, 0.8, 11, 9, 3, 220, 250, 2

Increase steering wheel angle for better on ground slow speed maneuvering. Make it tricycle gear for the flight model.

fuselage_length = -1 ; 250 ; Nose to tail (FEET)

Automatic fuselage_length.

drag_coef_flaps = 0.1 ; 0.11860

[FLAPS.0]

flaps-position.1 = 1, 285, 1, 1, 1, 0, 0.15 ; 1, 285, 0.1, 1, 1, 0, 0.15

flaps-position.2 = 5, 265, 1, 1, 1, 0, 0.11 ; 5, 265, 0.2, 1, 1, 0, 0.11

flaps-position.3 = 10, 245, 1, 1, 1, 0, 0.065 ; 10, 245, 0.4, 1, 1, 0, 0.065

flaps-position.4 = 20, 235, 1, 1, 1, 0, -0.035 ; 20, 235, 0.6, 1, 1, 0, -0.035

flaps-position.5 = 25, 210, 1, 1, 1, 0, -0.085 ; 25, 210, 0.8, 1, 1, 0, -0.085

[FLAPS.1]

flaps-position.1 = 21, 285, 1 ; 21, 285, 0.1 ; 

flaps-position.2 = 21, 265, 1 ; 21, 265, 0.2 ; 

flaps-position.3 = 21, 245, 1 ; 21, 245, 0.4 ; 

flaps-position.4 = 21, 235, 1 ; 21, 235, 0.6 ; 

flaps-position.5 = 21, 215, 1 ; 21, 215, 0.8 ; 

Redesign flaps drag to have more flaps drag a intermediate flaps settings and less flaps drag in final position.

Version 1.14.6.2

Completly switch off "fake" inertia. Please use this flight level mod ONLY with flight model modern.