From 0c68b725dd5df05cbce2cb2575fc1d38704dbfb0 Mon Sep 17 00:00:00 2001 From: Kilian Hofmann Date: Fri, 14 Feb 2025 03:16:14 +0100 Subject: [PATCH] Ground contact tyre deformation --- .../TFDi_Design_MD-11F_GE/flight_model.cfg | 4 ++-- README.MD | 21 ++++++++++++------- ...didesign-md11-config-tweaks.code-workspace | 1 + 3 files changed, 17 insertions(+), 9 deletions(-) diff --git a/PackageSources/SimObjects/Airplanes/TFDi_Design_MD-11F_GE/flight_model.cfg b/PackageSources/SimObjects/Airplanes/TFDi_Design_MD-11F_GE/flight_model.cfg index 224fb4a..ba0f941 100644 --- a/PackageSources/SimObjects/Airplanes/TFDi_Design_MD-11F_GE/flight_model.cfg +++ b/PackageSources/SimObjects/Airplanes/TFDi_Design_MD-11F_GE/flight_model.cfg @@ -285,8 +285,8 @@ ground_crosswind_effect_max_speed=150 ground_high_speed_steeringwheel_static_friction_scalar=1.5 ground_high_speed_otherwheel_static_friction_scalar=1.2 //KH New ground physics -ground_new_contact_model_gear_flex=0.0035 -ground_new_contact_model_gear_flex_damping=12 +ground_new_contact_model_gear_flex=0.0044 +ground_new_contact_model_gear_flex_damping=7 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_steering=10000 diff --git a/README.MD b/README.MD index 6a2482d..e9acd13 100644 --- a/README.MD +++ b/README.MD @@ -19,7 +19,7 @@ limit - Used online references to achieve idle 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 - Affected by `max_n1_protection`, `max_n2_protection`, `max_egt_protection` - All set to zero @@ -31,6 +31,9 @@ - New ground contact model # 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 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. @@ -56,11 +59,15 @@ logarithmic relation of N2 to N1 would suggest. 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 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 -slowing down at 75 to 80 N1. +lead to a noticeable increase in spool rate past 90 N1, after first seemingly +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 -- EGT, try higher ITT with new tuning params -- New ground contact MTOW sponginess -- New ground contact high speed stickyness -- AND trim issue \ No newline at end of file +- AND trim issue +- Slat drag and pitch up moment upon retraction \ No newline at end of file diff --git a/xkhofmann-tfdidesign-md11-config-tweaks.code-workspace b/xkhofmann-tfdidesign-md11-config-tweaks.code-workspace index 9bb8b9f..8f75994 100644 --- a/xkhofmann-tfdidesign-md11-config-tweaks.code-workspace +++ b/xkhofmann-tfdidesign-md11-config-tweaks.code-workspace @@ -11,6 +11,7 @@ "daoa", "dboundary", "EASA", + "EHAM", "FADEC", "FCOM", "fuelflow",