1. Default MSTS eng file produces power to the rail - Notch8 - in the normal 90% range and is proportionally correct at all other power notches.
2. Default MSTS eng file with ORTSDieselEngines block ( via OpenRails folder/eng include file/Common.inc folder ) also produces normal power to the rails at Run 8 and proportionally correct at all other notches.
3. Adding the ORTSMaxTractiveForceCurves in any file configuration results in reduced power to the rails at Notch8, in the range of 50% (observed as low as 42% and as high as 70%), also proportionally lower at all other notches.**
4. All diesel locomotives tested, all routes, no log warning or error is observed.
5. Tests in the screenshot were with the locomotive and curve given in the manual on page 118, Sec. 8.1.4.1 ( see files used inserted in post )
**Note: file configurations --- MSTS default eng file with ORTSMTFcurves added to it ( No OpenRails folder); ORTSMTFcurves added to ORTSDieselEng block ( as shown Below) + MSTS default eng file; and ORTSMTFcurves only ( OpenRails folder/Common.inc) + MSTS default eng file.
Re-reading what I posted (and postings in another thread), I don't believe one can conclusively state that the fault lies with the ORTSMTF curves, it could very well be a problem with the Advanced Adhesion model. I'm thinking how to test that? Anyone know the advanced adhesion code?...that's not something I could tackle.
Comment ( Standard ORTS Diesel Engine for GE_70Ton Locomotive ) Comment ( Performance Ratings == Gross HP 700 == Traction HP 600 == 23605lb CTE == 41590lb MTE ) Comment ( include ( "..\\..\\Common.inc\\Locomotives\\GE_70Ton.inc" ) ) ORTSDieselEngines ( 1 Diesel( IdleRPM ( 315 ) MaxRPM ( 800 ) StartingRPM ( 275 ) StartingConfirmRPM ( 350 ) ChangeUpRPMpS ( 65 ) ChangeDownRPMpS ( 35 ) RateOfChangeUpRPMpSS ( 25 ) RateOfChangeDownRPMpSS ( 15 ) MaximalPower ( 521.990kW ) IdleExhaust ( 1.2 ) MaxExhaust ( 2.3 ) ExhaustDynamics ( 2.2 ) ExhaustDynamicsDown ( 0.8 ) ExhaustColor ( 20161819 ) ExhaustTransientColor ( 40212324 ) DieselPowerTab ( 0 0 350 55928 415 111855 480 167783 545 223710 610 279638 675 335565 740 391493 800 447420 ) DieselConsumptionTab ( 0 0 315 37.9 800 151.4 ) ThrottleRPMTab ( 0 315 12.5 350 25 415 37.5 480 50 545 62.5 610 75 675 87.5 740 100 800 ) DieselTorqueTab ( 0 0 315 2951 800 23605 ) MinOilPressure ( 20 ) MaxOilPressure ( 50 ) MaxTemperature ( 120 ) Cooling ( 3 ) TempTimeConstant ( 720 ) OptTemperature ( 71 ) IdleTemperature ( 55 ) ) ) ORTS ( ORTSEmergencyCausesThrottleDown ( 1 ) ORTSWheelSlipCausesThrottleDown ( 1 ) ORTSMainResChargingRate ( 0.237 ) ORTSBrakePipeChargingRate ( 40 ) TrainPipeLeakRate ( 0.0833 ) ORTSEngineBrakeReleaseRate ( 38 ) ORTSEngineBrakeApplicationRate ( 34 ) ORTSBrakePipeTimeFactor ( 0.003 ) ORTSBrakeEmergencyTimeFactor ( 0.1 ) ORTSBrakeServiceTimeFactor ( 1.009 ) ) ORTSMaxTractiveForceCurves ( 0 ( 0 0 50 0 ) .125 ( 0 23125 0.3 23125 1 6984 2 3492 5 1397 10 698 20 349 50 140 ) .25 ( 0 46250 0.61 46250 1 27940 2 13969 5 5588 10 2794 20 1397 50 559 ) .375 ( 0 69375 0.91 69375 2 31430 5 12572 10 6287 20 3143 50 1257 ) .5 ( 0 92500 1.21 92500 5 22350 10 11175 20 5588 50 2235 ) .625 ( 0 115625 1.51 115625 5 34922 10 17461 20 8730 50 3492 ) .75 ( 0 138750 1.82 138750 5 50288 10 25144 20 12572 50 5029 ) .875 ( 0 161875 2.12 161875 5 68447 10 34223 20 17112 50 6845 ) 1 ( 0 185000 2.42 185000 5 89400 10 44700 20 22350 50 8940 ) )
include ( "..\\bc13ge70tonner.eng" ) Wagon ( include ( "..\\..\\Common.inc\\Locomotives\\Std_TypeF_Coupler.inc" ) include ( "..\\..\\Common.inc\\Locomotives\\Std_Loco_Brakes.inc" ) ORTSAdhesion ( ORTSCurtius_Kniffler ( 7.5 44 0.161 0.7 ) ) ORTSAdhesion ( ORTSSlipWarningThreshold ( 70 ) ) ORTSBearingType ( Roller ) ORTSDavis_A ( 920.72 ) ORTSDavis_B ( 20.8947 ) ORTSDavis_C ( 5.485595 ) Comment ( == Assumptions -Locomotive diesel/electric - speed - 55mph (89km/h), Roller Bearing, 4 axles, frontal area - 10.6m2, WagonWeight - 63.5 ton (metric), Drag 0.90 == ) ) Engine ( Effects ( DieselSpecialEffects ( Exhaust1 ( -0.405 4.3 -0.417 0 1 0 0.13 ) ) ) include ( "..\\..\\Common.inc\\Locomotives\\GE_70Ton_TEST.inc" ) )