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.
Thank you very much for your great work !!
ReplyDeleteIt goes fine as silk.
And the view of the spectacular Alt + 1 pilot the sensation is 100%
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