TFDi_MD-11_QA/xkhofmann-tfdidesign-md11-config-tweaks
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Ground contact tyre deformation

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This commit is contained in:
Kilian Hofmann 2025-02-14 03:16:14 +01:00
parent 5231e176be
commit 0c68b725dd
3 changed files with 17 additions and 9 deletions
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4
PackageSources/SimObjects/Airplanes/TFDi_Design_MD-11F_GE/flight_model.cfg
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@ -285,8 +285,8 @@ ground_crosswind_effect_max_speed=150
ground_high_speed_steeringwheel_static_friction_scalar=1.5 ground_high_speed_steeringwheel_static_friction_scalar=1.5
ground_high_speed_otherwheel_static_friction_scalar=1.2 ground_high_speed_otherwheel_static_friction_scalar=1.2
//KH New ground physics //KH New ground physics
ground_new_contact_model_gear_flex=0.0035 ground_new_contact_model_gear_flex=0.0044
ground_new_contact_model_gear_flex_damping=12 ground_new_contact_model_gear_flex_damping=7
ground_new_contact_model_rolling_stickyness=0.25 ground_new_contact_model_rolling_stickyness=0.25
ground_new_contact_model_up_to_speed_lateral=10000 ground_new_contact_model_up_to_speed_lateral=10000
ground_new_contact_model_up_to_speed_lateral_steering=10000 ground_new_contact_model_up_to_speed_lateral_steering=10000

21
README.MD
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@ -19,7 +19,7 @@
limit limit
- Used online references to achieve idle EGT - Used online references to achieve idle EGT
- Used Saudi FCOM for high altitude EGT - Used Saudi FCOM for high altitude EGT
- This may be unachievable due to the non changeable cooling of the game - This may be unachievable
- Disabled sim protections - Disabled sim protections
- Affected by `max_n1_protection`, `max_n2_protection`, `max_egt_protection` - Affected by `max_n1_protection`, `max_n2_protection`, `max_egt_protection`
- All set to zero - All set to zero
@ -31,6 +31,9 @@
- New ground contact model - New ground contact model
# Observations # Observations
All test are done at SL (EHAM) and ISA (15C, 1013.25 hPa) unless otherwise
noted.
The defined N1 and N2 max values are too low. as per EASA TCDS, the CF6-80C2D1F The defined N1 and N2 max values are too low. as per EASA TCDS, the CF6-80C2D1F
has a N1 max of 117.5 and a N2 max of 112.5. I do not know why the lower limits has a N1 max of 117.5 and a N2 max of 112.5. I do not know why the lower limits
were chosen, it may be in our interest to adjust this to the actual limits. were chosen, it may be in our interest to adjust this to the actual limits.
@ -56,11 +59,15 @@ logarithmic relation of N2 to N1 would suggest.
table, a default logarithmic curve is used instead. The modifications done here table, a default logarithmic curve is used instead. The modifications done here
do not follow this due to the WASM FADEC imposing a non linear spool behaviour do not follow this due to the WASM FADEC imposing a non linear spool behaviour
itself. It is to note however, that the sharp upturn at the end of the original itself. It is to note however, that the sharp upturn at the end of the original
lead to a noticeable increase in spool past 90 N1, after first seemingly lead to a noticeable increase in spool rate past 90 N1, after first seemingly
slowing down at 75 to 80 N1. slowing down at 75 to 80 N1.
The way the game does EGT is odd to say the least. Take the values with a hefty
dose of salt. I could get SL static to look reasonable, but the EGT at high
altitude remains to low. Adjusting to where high altitude looks reasonable
will produce far too high SL temperatures, going so far as to reach above 1100
degrees Celsius.
# TODO # TODO
- EGT, try higher ITT with new tuning params - AND trim issue
- New ground contact MTOW sponginess - Slat drag and pitch up moment upon retraction
- New ground contact high speed stickyness
- AND trim issue

1
xkhofmann-tfdidesign-md11-config-tweaks.code-workspace
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@ -11,6 +11,7 @@
"daoa", "daoa",
"dboundary", "dboundary",
"EASA", "EASA",
"EHAM",
"FADEC", "FADEC",
"FCOM", "FCOM",
"fuelflow", "fuelflow",