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Good evening everyone, Since I am working on a big collection of different MiG-15s and MiG-17s for different nations. I found MiG-17 realistic flight model tweak which limits the maneuverability of the MiG-17s at high subsonic speeds, especially above .8M. According to them, I have to look at CLa= and Cmq= tables for the stabs at values .8M and above. This part still confuses me. So I am asking for someone to point me at where to look at. That way, I can understand which codes to tweak for another MiG-15 and 17 that still doesn't have the maneuverability limitation at subsonic speeds. I opened MiG-17's data file and went to [AircraftData]: [LeftStab] ParentComponentName=VertTail ModelNodeName=Left_Stab ShowFromCockpit=TRUE DetachWhenDestroyed=TRUE DamageRating=DISABLED MassFraction=0.012 HasAeroCoefficients=TRUE LiftSurface=TRUE CL0=-0.0024 CLa=0.1946 CD0=0.0005 CDL=0.0003 Cmq=-2.4830 Cmad=-1.1754 Cyb=-0.0753 Clp=-0.0011 Cnb=0.0421 CL0MachTableNumData=13 CL0MachTableDeltaX=0.10 CL0MachTableStartX=0.00 CL0MachTableData=3.256,3.262,3.278,2.462,1.000,0.217,-0.231,-0.523,-0.614,-0.614,-0.738,-0.716,0.481 CLaMachTableNumData=13 CLaMachTableDeltaX=0.10 CLaMachTableStartX=0.00 CLaMachTableData=0.973,0.975,0.979,0.988,1.000,1.016,1.038,1.066,0.201,0.001,0.001,0.001,0.001 CD0MachTableNumData=13 CD0MachTableDeltaX=0.10 CD0MachTableStartX=0.00 CD0MachTableData=2.082,1.249,1.104,1.036,1.000,0.981,0.971,0.986,0.994,0.994,11.881,11.945,12.036 CDLAlphaTableNumData=15 CDLAlphaTableDeltaX=4.00 CDLAlphaTableStartX=-28.00 CDLAlphaTableData=93.444,69.444,49.000,32.111,18.778,9.000,2.778,0.111,1.000,5.444,13.444,25.000,40.111,58.778,81.000 CmqMachTableNumData=13 CmqMachTableDeltaX=0.10 CmqMachTableStartX=0.00 CmqMachTableData=0.971,0.973,0.978,0.987,1.000,1.017,1.040,2.069,10.107,100.107,100.364,100.332,100.199 XacMachTableNumData=13 XacMachTableDeltaX=0.10 XacMachTableStartX=0.00 XacMachTableData=-5.346,-5.346,-5.347,-5.348,-5.350,-5.352,-5.356,-5.359,-5.364,-5.364,-5.438,-5.459,-5.472 CheckStall=TRUE CLmax=0.0708 AlphaStall=17.68 AlphaMax=23.72 AlphaDepart=28.23 StallLiftTableNumData=37 StallLiftTableDeltaX=10.00 StallLiftTableStartX=-180.00 StallLiftTableData=0.000,-0.013,-0.026,-0.042,-0.058,-0.054,-0.047,-0.032,-0.014,0.000,0.017,0.050,0.094,0.140,0.202,0.245,0.340,0.531,0.903,0.586,0.362,0.265,0.210,0.167,0.118,0.074,0.038,0.000,-0.014,-0.032,-0.047,-0.054,-0.058,-0.042,-0.026,-0.013,0.000 StallDragTableNumData=37 StallDragTableDeltaX=10.00 StallDragTableStartX=-180.00 StallDragTableData=0.001,0.008,0.021,0.043,0.082,0.123,0.171,0.227,0.292,0.367,0.451,0.562,0.689,0.825,0.937,1.018,1.142,1.122,1.000,1.122,1.142,1.018,0.937,0.825,0.689,0.562,0.451,0.367,0.292,0.227,0.171,0.123,0.082,0.043,0.021,0.008,0.001 StallXacShiftTableNumData=37 StallXacShiftTableDeltaX=10.00 StallXacShiftTableStartX=-180.00 StallXacShiftTableData=-0.359,-0.359,-0.307,-0.276,-0.273,-0.262,-0.244,-0.225,-0.199,-0.179,-0.160,-0.134,-0.115,-0.097,-0.086,-0.083,-0.052,0.000,0.000,0.000,-0.052,-0.083,-0.086,-0.097,-0.115,-0.134,-0.160,-0.179,-0.199,-0.225,-0.244,-0.262,-0.273,-0.276,-0.307,-0.359,-0.359 DownwashAlphaTableNumData=37 DownwashAlphaTableDeltaX=10.00 DownwashAlphaTableStartX=-180.00 DownwashAlphaTableData=0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,-0.000,-0.141,-0.153,-0.076,-0.002,-0.095,-0.607,-1.666,-2.187,0.407,4.536,8.397,7.739,0.864,0.103,0.678,0.913,0.668,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000 Chord=1.00 Ymac=-0.71 MinExtentPosition=-0.02,-6.13, 1.35 MaxExtentPosition=-1.75,-4.96, 1.43 CollisionPoint[001]=-1.67,-5.90,1.38 CollisionPoint[002]=-1.67,-6.39,1.38 SystemName[001]=LeftElevator [RightStab] ParentComponentName=VertTail ModelNodeName=Right_Stab ShowFromCockpit=TRUE DetachWhenDestroyed=TRUE DamageRating=DISABLED MassFraction=0.012 HasAeroCoefficients=TRUE LiftSurface=TRUE CL0=-0.0024 CLa=0.1946 CD0=0.0005 CDL=0.0003 Cmq=-2.4830 Cmad=-1.1754 Cyb=-0.0753 Clp=-0.0011 Cnb=0.0421 CL0MachTableNumData=13 CL0MachTableDeltaX=0.10 CL0MachTableStartX=0.00 CL0MachTableData=3.256,3.262,3.278,2.462,1.000,0.217,-0.231,-0.523,-0.614,-0.614,-0.738,-0.716,0.481 CLaMachTableNumData=13 CLaMachTableDeltaX=0.10 CLaMachTableStartX=0.00 CLaMachTableData=0.973,0.975,0.979,0.988,1.000,1.016,1.038,1.066,0.201,0.001,0.001,0.001,0.001 CD0MachTableNumData=13 CD0MachTableDeltaX=0.10 CD0MachTableStartX=0.00 CD0MachTableData=2.082,1.249,1.104,1.036,1.000,0.981,0.971,0.986,0.994,0.994,11.881,11.945,12.036 CDLAlphaTableNumData=15 CDLAlphaTableDeltaX=4.00 CDLAlphaTableStartX=-28.00 CDLAlphaTableData=93.444,69.444,49.000,32.111,18.778,9.000,2.778,0.111,1.000,5.444,13.444,25.000,40.111,58.778,81.000 CmqMachTableNumData=13 CmqMachTableDeltaX=0.10 CmqMachTableStartX=0.00 CmqMachTableData=0.971,0.973,0.978,0.987,1.000,1.017,1.040,2.069,10.107,100.107,100.364,100.332,100.199 XacMachTableNumData=13 XacMachTableDeltaX=0.10 XacMachTableStartX=0.00 XacMachTableData=-5.346,-5.346,-5.347,-5.348,-5.350,-5.352,-5.356,-5.359,-5.364,-5.364,-5.438,-5.459,-5.472 CheckStall=TRUE CLmax=0.0708 AlphaStall=17.68 AlphaMax=23.72 AlphaDepart=28.23 StallLiftTableNumData=37 StallLiftTableDeltaX=10.00 StallLiftTableStartX=-180.00 StallLiftTableData=0.000,-0.013,-0.026,-0.042,-0.058,-0.054,-0.047,-0.032,-0.014,0.000,0.017,0.050,0.094,0.140,0.202,0.245,0.340,0.531,0.903,0.586,0.362,0.265,0.210,0.167,0.118,0.074,0.038,0.000,-0.014,-0.032,-0.047,-0.054,-0.058,-0.042,-0.026,-0.013,0.000 StallDragTableNumData=37 StallDragTableDeltaX=10.00 StallDragTableStartX=-180.00 StallDragTableData=0.001,0.008,0.021,0.043,0.082,0.123,0.171,0.227,0.292,0.367,0.451,0.562,0.689,0.825,0.937,1.018,1.142,1.122,1.000,1.122,1.142,1.018,0.937,0.825,0.689,0.562,0.451,0.367,0.292,0.227,0.171,0.123,0.082,0.043,0.021,0.008,0.001 StallXacShiftTableNumData=37 StallXacShiftTableDeltaX=10.00 StallXacShiftTableStartX=-180.00 StallXacShiftTableData=-0.359,-0.359,-0.307,-0.276,-0.273,-0.262,-0.244,-0.225,-0.199,-0.179,-0.160,-0.134,-0.115,-0.097,-0.086,-0.083,-0.052,0.000,0.000,0.000,-0.052,-0.083,-0.086,-0.097,-0.115,-0.134,-0.160,-0.179,-0.199,-0.225,-0.244,-0.262,-0.273,-0.276,-0.307,-0.359,-0.359 DownwashAlphaTableNumData=37 DownwashAlphaTableDeltaX=10.00 DownwashAlphaTableStartX=-180.00 DownwashAlphaTableData=0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,-0.000,-0.141,-0.153,-0.076,-0.002,-0.095,-0.607,-1.666,-2.187,0.407,4.536,8.397,7.739,0.864,0.103,0.678,0.913,0.668,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000 Chord=1.00 Ymac=0.71 MinExtentPosition= 0.02,-6.13, 1.35 MaxExtentPosition= 1.75,-4.96, 1.43 CollisionPoint[001]=1.67,-5.90,1.38 CollisionPoint[002]=1.67,-6.39,1.38 SystemName[001]=RightElevator May I ask, which codes limit the Elevator responses at certain airspeed (Mach 0.8 and above)?