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krzysk1 / wilga

Wilga 80 for Aerofly FS4
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Wheel Shocks Seem A Bit Stiff #12

Closed jayeye2011 closed 1 year ago

jayeye2011 commented 1 year ago

I feel like the Kp and Kd values used make for a bouncy landing but maybe that's just me? Current Values [multibody_joint][JointFuselageLeftGear][] <[float64][Kp][20000.0]> <[float64][Kd][2000.0]> [multibody_joint][JointFuselageRightGear][] <[float64][Kp][20000.0]> <[float64][Kd][2000.0]> [multibody_joint][JointFuselageTailGearUpper][] <[float64][Kp][12000.0]> <[float64][Kd][1200.0]> These shock absorber settings don't seem to give much on a non-butter landing. How about using these settings instead? [multibody_joint][JointFuselageLeftGear][] <[float64][Kp][10000.0]> <[float64][Kd][750.0]> [multibody_joint][JointFuselageRightGear][] <[float64][Kp][10000.0]> <[float64][Kd][750.0]> [multibody_joint][JointFuselageTailGearUpper][] <[float64][Kp][10000.0]> <[float64][Kd][750.0]>

NACA 2415 version wilga_tmd_softer_shocks_NACA2415.zip

NACA 44412 version wilga_tmd_softer_shocks_NACA4412.zip

jayeye2011 commented 1 year ago

Maybe a softer tail shock absorber would also work [multibody_joint][JointFuselageTailGearUpper][] <[float64][Kp][9000.0]> <[float64][Kd][500.0]>

jayeye2011 commented 1 year ago

Here is an example of my a casual simmer version of the wilga.tmd file (not for incorporation in the github repository). I have softer shocks, neutral stick and rudder takeoff at 100% throttle, slower climb rate (800 to 900fpm) at 73 to 75 kias. Uses fuselage Cdx = 0.2 Probably not something for the purist who wants to have to apply rudder correction during takeoff though (actually I don't know if it is left or right rudder and how much for the real world Wilga - not a pilot). 20230109025852_1 wilga tmd NACA 4412 casual.zip

jayeye2011 commented 1 year ago

I am going to close this since softer shocks is more a personal preference an not a real bug issue. It was just something I was looking at to kill some time and of no real importance.