good day,i am a very happy flyer with ivao, everythin is running smoothly, but there is one small but getting bigger problem.i am trying for the last couple of days to get contrails on the other aircraft. I just Gridley's Guide to Contrails here available on the avsom forum, and added the effects , engine temp. etc etc to the ivap aircrafts but i can't get it to work. Is there anybody out there trying this also, or maybe has it running??I tghink it's in the way micropose designed fs9, but i don't understand that because the aircraft is from the aircraft libraryrickklm027

I'm happy to try and help out - what specifically seems to be the trouble? Even after running markus' utility, your other planes, AI or user flyable, don't have contrails?Look forward to hearing back!Best,sg

Scott,The planes i fly have contrails, even the ai ones, and here it comes, the planes from ivao are from aardvark etc when i fly them they have contrails. That's the strange thing about it. I now the installation of the effects went all oke because i can see the contrails, thats why i am confused about this.hope you can help out here, because it would be fantastic on my favorite flight with the pmdg from tripoli to eham (lots of trafic and nice scenery/ real world weather, to see the planes cruising by with long contrails.rick

Just to restate then: your planes all seem to have contrails installed because when you fly them as non-AI, you see contrails but when the AI flies them, no contrails?I'm going to make a guess. Your AI planes don't actually have contrails properly installed, or the temperature at which they form is set very low so you'll never see them.What happens when you run markus' AI-contrail utility is that the aircraft.cfg is edited for each type of aircraft you select. If you want to add contrails to only AI planes, uncheck the "flyable planes" checkbox. Also, for testing, set the MIN Contrail temp to something absurd like +50 - you should have every single plane spewing contrails. One final tip - make certain that you enter the file name of the effect correctly! If it doesn't seem to be working, leave off the .fx extension - I can't recall if markus hard coded the extension in.To check, open the aircraft.cfg of one of your AI aircraft, then use the find function in your editor to search for "contrail" and you should find two entries, one with the file name of the effect used for contrails by that aircraft, and one for the temperature below which the contrail should form.If the names and numbers don't match, then there's something going wrong with the util. If they do match, and you're still not seeing contrails...email me!Best,sg

Scott,thanks for your answer, i looked in my aircraft.cfg and there were no effects (anymore, at all???),has probaly something to do with flyable and non flyable aircraft, i will set things up tomorrow morning urly up again, and do my favourite flight again. I have no time anymore i have to go to my first hobby ( my lovely wife).by the way i am using your asynchrios strobes also, thanks for that.i will post or e-mail about this tomorrow that's for sure, because when it works, we can put it in the ivao airplane package, and then there are plenty happy pilots.regardsrick

In FS9, you will only see any con-trails if the aircraft is above FL300.All the best,Dave.'Three greens and soft landings'

this is what the ivao.cfg is in the fs9/aircraft/ivao_b737 folder:[General][pitot_static]vertical_speed_time_constant=1 //Increasing this value will cause a more instantaneous reaction in the VSI[WEIGHT_AND_BALANCE]max_gross_weight=138500 // (pounds)empty_weight=100792 // (pounds)reference_datum_position=0, 0, 0 // (feet) distance from FlightSim Reference position: (1/4 chord, centerline, waterline)empty_weight_CG_position=0, 0, 0 // (feet) longitudinal, lateral, vertical distance from specified datummax_number_of_stations=50station_load.0=0.000000,0.000000,0.000000,0.000000;Moments of Inertiaempty_weight_pitch_MOI=3172439empty_weight_roll_MOI=2262183empty_weight_yaw_MOI=3337024empty_weight_coupled_MOI=0[flight_tuning]cruise_lift_scalar=1.0parasite_drag_scalar=1.0induced_drag_scalar=1.0elevator_effectiveness=1.0aileron_effectiveness=1.0rudder_effectiveness=1.0pitch_stability=1.0roll_stability=1.0yaw_stability=1.0elevator_trim_effectiveness=1.0aileron_trim_effectiveness=1.0rudder_trim_effectiveness=1.0[GeneralEngineData]engine_type=1 //0=Piston, 1=Jet, 2=None, 3=Helo-Turbine, 4=Rocket, 5=TurbopropEngine.0=4.75, -16.1, -2.5 //(feet) longitudinal, lateral, vertical distance from reference datumEngine.1=4.75, 16.1, -2.5 //(feet) longitudinal, lateral, vertical distance from reference datumfuel_flow_scalar=1 //Scalar for fuel flow efficiencymin_throttle_limit=-0.250000[TurbineEngineData]fuel_flow_gain=0.002 //Gain on fuel flowinlet_area=10.6 //Square Feet, engine nacelle inlet arearated_N2_rpm=29920 //RPM, second stage compressor rated valuestatic_thrust=23500 //Lbs, max rated static thrust at Sea Levelafterburner_available=0 //Afterburner available?reverser_available=1 //Thrust reverser available?[jet_engine]thrust_scalar=1.0[electrical];BusType, MaxAmpLoad, MinVoltage BusTypes:0=MainBus,1=AvionicsBus,2=BatteryBus,3=HotBatteryBus,4-7=Generator/AlternatorBus(1-4)flap_motor=0, 5 , 17.0gear_motor=0, 5 , 17.0autopilot=0, 5 , 17.0avionics_bus=0, 10, 17.0avionics=1, 5 , 17.0pitot_heat=0, 2 , 17.0additional_system=0, 20, 17.0marker_beacon=1, 2 , 17.0gear_warning=0, 2 , 17.0fuel_pump=0, 5 , 17.0starter1=0, 20, 17.0light_nav=0, 5 , 17.0light_beacon=0, 5 , 17.0light_landing=0, 5 , 17.0light_taxi=0, 5 , 17.0light_strobe=0, 5 , 17.0light_panel=0, 5 , 17.0//0 Class <0=none,1=wheel, 2=scrape, 3=float>//1 Longitudinal Position (feet)//2 Lateral Position (feet)//3 Vertical Position (feet)//4 Impact Damage Threshold (Feet Per Minute)//5 Brake Map (0=None, 1=Left, 2=Right)//6 Wheel Radius (feet)//7 Steer Angle (degrees)//8 Static Compression (feet) (0 if rigid)//9 Max/Static Compression Ratio//10 Damping Ratio (0=Undamped, 1=Critically Damped)//11 Extension Time (seconds)//12 Retraction Time (seconds)//13 Sound Type//14 Airspeed limit for retraction (KIAS)//15 Airspeed that gear gets damage at (KIAS)[contact_points]point.0=1, 40.00, 0.00, -7.30, 1181.1, 0, 1.442, 55.92, 0.8, 2.5, 0.9, 4.0, 4.0, 0, 0.0, 0.0point.1=1, -7.75, -8.58, -8.68, 1574.8, 1, 1.442, 0.00, 1.0, 2.5, 0.9, 6.9, 6.9, 2, 0.0, 0.0point.2=1, -7.75, 8.58, -8.68, 1574.8, 2, 1.442, 0.00, 1.0, 2.5, 0.9, 7.1, 7.1, 3, 0.0, 0.0point.3=2, -14.17, -47.33, 0.00, 787.4, 0, 0.000, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 5, 0.0, 0.0point.4=2, -14.17, 47.33, 0.00, 787.4, 0, 0.000, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 6, 0.0, 0.0point.5=2, -54.00, 0.00, 2.83, 787.4, 0, 0.000, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 9, 0.0, 0.0point.6=2, 42.67, 0.00, -3.75, 787.4, 0, 0.000, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 4, 0.0, 0.0max_number_of_points=21static_pitch=-1.12 //degrees, pitch when at rest on the ground (+=Up, -=Dn)static_cg_height=7.66 //feet, altitude of CG when at rest on the groundgear_system_type=0[Views]eyepoint=43.7, -1.31, 3.55 //(feet) longitudinal, lateral, vertical distance from reference datum[flaps.0] //Trailing Edge Flapstype=1 // 1 - tail, 2 - leadspan-outboard=0.8 // 0.0 .. 1.0extending-time=20 // secondsflaps-position.0=0 // degreesflaps-position.1=1 // degreesflaps-position.2=2 // degreesflaps-position.3=5 // degreesflaps-position.4=10 // degreesflaps-position.5=15 // degreesflaps-position.6=25 // degreesflaps-position.7=30 // degreesflaps-position.8=40 // degreesdamaging-speed=250 // KIASblowout-speed=300 // KIASlift_scalar=1.0drag_scalar=1.0pitch_scalar=1.0system_type=1 //Hydraulic[flaps.1] //Inboard Leading Edge Flapstype=2 // 1 - tail, 2 - leadspan-outboard=0.8 // 0.0 .. 1.0extending-time=2 // secondsflaps-position.0=0 //flaps-position.1=1.0 //damaging-speed=250 // KIASblowout-speed=300 // KIASlift_scalar=1.0drag_scalar=1.0pitch_scalar=1.0system_type=1 //Hydraulic[flaps.2] //Outboard Leading Edge Slattype=2 // 1 - tail, 2 - leadspan-outboard=0.8 // 0.0 .. 1.0extending-time=3 // secondsflaps-position.0=0 //flaps-position.1=0.5 //flaps-position.4=1.0 //damaging-speed=250 // KIASblowout-speed=300 // KIASlift_scalar=1.0drag_scalar=1.0pitch_scalar=1.0system_type=1 //Hydraulic[Radios]// Radio Type=availiable, standby frequency, has glide slopeAudio.1=1Com.1=1, 1Com.2=1, 1Nav.1=1, 1, 1Nav.2=1, 1, 0Adf.1=1Transponder.1=1Marker.1=1[LIGHTS] //Types: 1=beacon, 2=strobe, 3=navigation, 4=cockpit, 5=landing light.1 = 1, 24.00, 0.00, 10.5, fx_beaconblight.2 = 1, 5.00, 0.00, -4.30, fx_beaconb light.3 = 3, -52.42, 0, 5.5, fx_navwhilight.4 = 3, -52.42, 0, 5.56, fx_navwhi[keyboard_response]//Breakpoint speeds (knots) on the keyboard increments of control surfaces.//Speed at which the incremenet is reduced to 1/2 and 1/8 respectively.elevator=150, 250aileron=150, 250rudder=150, 250[direction_indicators]//1 Type: 0=None, 1=Vacuum Gyro, 2=Electric Gyro, 3=Electro-Mag Slaved Compass, 4=Slaved to another//2 Indicator number of slaving indicator if Type=4direction_indicator.0=3,0[exits]number_of_exits=2exit_rate.0=0.4 ;Percent per secondexit_rate.1=0.4 ;Percent per second[EFFECTS]wake=fx_wakewater=fx_spraydirt=fx_tchdrtconcrete=fx_sparkstouchdown=fx_tchdwn, 1[autopilot]autopilot_available=1flight_director_available=1default_vertical_speed=1800autothrottle_available=1autothrottle_arming_required=1autothrottle_max_rpm=90autothrottle_takeoff_ga=1pitch_takeoff_ga=8;max_pitch=10.000000max_pitch_acceleration=1.000000max_pitch_velocity_lo_alt=2.000000max_pitch_velocity_hi_alt=1.500000max_pitch_velocity_lo_alt_breakpoint=20000.000000max_pitch_velocity_hi_alt_breakpoint=28000.000000max_bank=25.000000max_bank_acceleration=1.800000max_bank_velocity=3.000000max_throttle_rate=0.100000nav_proportional_control=9.000000nav_integrator_control=0.250000nav_derivative_control=0.000000nav_integrator_boundary=2.500000nav_derivative_boundary=0.000000gs_proportional_control=9.520000gs_integrator_control=0.260000gs_derivative_control=0.000000gs_integrator_boundary=0.700000gs_derivative_boundary=0.000000yaw_damper_gain=0.000000[fuel]Center1=0, 0, 0, 2313, 0 //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)LeftMain=-3, -19, 0, 1500, 0 //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)RightMain=-3, 19, 0, 1500, 0 //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)fuel_type=2 //Fuel type: 1 = Avgas, 2 = JetAnumber_of_tank_selectors=1electric_pump=0[airplane_geometry]wing_area=1137.0 //Square feetwing_span=94.75 //Feetwing_root_chord=18.0 //Feetwing_dihedral=6.2 //Degreeswing_incidence=1.0 //Degreeswing_twist=-0.5 //Degreesoswald_efficiency_factor=0.75 //Measure of lift effeciency of wingwing_winglets_flag=0 //Are winglets available?wing_sweep=25.0 //Degrees, wing leading edgewing_pos_apex_lon=8.0 //Feet, longitudinal distance from reference point, negative going aftwing_pos_apex_vert=0.0 //Feet, vertical distance from reference point, positive going uphtail_area=338.0 //Square feethtail_span=41.7 //Feethtail_pos_lon=-35.0 //Feet, longitudinal distance from reference point, negative going afthtail_pos_vert=0.0 //Feet, vertical distance from reference point, positive going uphtail_incidence=0.0 //Degreeshtail_sweep=30.0 //Degrees, horizontal tail leading edgevtail_area=224.0 //Square feetvtail_span=20.0 //Feet, tip to bodyvtail_sweep=35.0 //Degrees, vertical tail leading edgevtail_pos_lon=-35.8 //Feet, longitudinal distance from reference point, negative going aftvtail_pos_vert=5.8 //Feet, vertical distance from reference point, positive going upelevator_area=70.5 //Square feetaileron_area=26.9 //Square feetrudder_area=56.2 //Square feetelevator_up_limit=22.5 //Degreeselevator_down_limit=19.5 //Degreesaileron_up_limit=20.0 //Degreesaileron_down_limit=20.0 //Degreesrudder_limit=26.0 //Degreeselevator_trim_limit=20.0 //Degreesspoiler_limit=60.0 //Degreesspoilerons_available=1 //Spoilerons Available?aileron_to_spoileron_gain=3 //Aileron to spoileron gainmin_ailerons_for_spoilerons=10 //Degreesmin_flaps_for_spoilerons=0 //Minimum flap handle position when spoilerons activate[Reference Speeds]flaps_up_stall_speed=142.0 //Knots True (KTAS)full_flaps_stall_speed=113.0 //Knots True (KTAS)cruise_speed=317.0 //Knots True (KTAS)max_indicated_speed=370.000000max_mach=0.820020[forcefeedback]gear_bump_nose_magnitude=3000 ; 0 - 10000gear_bump_nose_direction=18000 ; 0 - 35999 degreesgear_bump_nose_duration=250000 ; in microsecondsgear_bump_left_magnitude=2700 ; 0 - 10000gear_bump_left_direction=35500 ; 0 - 35999 degreesgear_bump_left_duration=250000 ; in microsecondsgear_bump_right_magnitude=2700 ; 0 - 10000gear_bump_right_direction=00500 ; 0 - 35999 degreesgear_bump_right_duration=250000 ; in microsecondsground_bumps_magnitude1=1300 ; 0 - 10000ground_bumps_angle1=08900 ; 0 - 35999 degreesground_bumps_intercept1=3.0ground_bumps_slope1=0.20ground_bumps_magnitude2=200 ; 0 - 10000ground_bumps_angle2=09100 ; 0 - 35999 degreesground_bumps_intercept2=1.075ground_bumps_slope2=0.035crash_magnitude1=10000 ; 0 - 10000crash_direction1=01000 ; 0 - 35999 degreescrash_magnitude2=10000 ; 0 - 10000crash_direction2=9000 ; 0 - 35999 degreescrash_period2=75000 ; in microsecondscrash_duration2=2500000 ; in microseconds[brakes]toe_brakes_scale=0.701926parking_brake=1[gear_warning_system]gear_warning_available=1pct_throttle_limit=0.099976flap_limit_power=25.496622flap_limit_idle=5.042029[hydraulic_system]electric_pumps=0engine_map=1,1,0,0normal_pressure=3000.000000[stall_warning]type=1[attitude_indicators]attitude_indicator.0=1[turn_indicators]turn_indicator.0=1,0

>In FS9, you will only see any con-trails if the aircraft is>above FL300.That's absolutely not true dave! It's controlled by temperature, and most often, contrail forming temp will occur at high altitude, but it is not a hard-coded altitude for contrail formation. Check Gridley's Guide to Contrails for more info...But, I think I see the problem here. Where does IVAO.cfg come from? Markus' AI contrails util only makes the changes to aircraft.cfg - either the IVAO.cfg file needs to edited manually, or recreated to reflect the changes made to aircraft.cfg by the contrail util. But, AI planes shouldn't be using IVAO.cfg, right? They should still be using aircraft.cfg, which should have the required parameters...Please let us know how it's going!Best,sg

So then tonight i will start to ad the effects and temp. manually to the aircraft ivao.cfg's will be a monster job, but i hope it works.Rick

But you shouldn't have to...First, because only the user's aircraft not AI use IVAO.cfg, right? I'm not sure about that - can someone jump in?Second, isn't there some utility or IVAO installer that will convert aircraft.cfg into IVAO.cfg for you...?Best,sg

this part i dont understand.ivao puts a package with aircraft in the fs9/aircraft folder, named IVAO_A330 and IVAO_B737 etc etc. The aircraft have both a aircraft.cfg and ivao.cfg, (and now also a aircraft without contrails.cfg). So this means when i fly the aircraft it uses aircraft.cfg, and for ivao it uses ivao.cfg??I hope there is such a installer, because it are a lot of planes, and becoming more, and more.Secondly i don't understand where did the effect go in the aircraft.cfg. i now for sure that it was there, see also the aircraft without contrail.cfgrick

I'm sorry I can't be more specific - I have no idea how IVAO works. I do know that FS9 never reads IVAO.cfg directly, regardless if the plane is hand flown or AI. Either some utility that you run when using IVAO converts IVAO.cfg to aircraft.cfg (that would explain why your contrails entries are disappearing) when you fly with it...in that case, you will need to edit IVAO.cfg directly, since your modified aircraft.cfg are being overwritten.The lines to look for, or add, are the following:in the [effects] section:contrail=fx_A_I_Contrail (or whatever effect you're using)and in the [generalenginedata] section:max_contrail_temperature=-27 (or whatever temperature you've set)I hope someone can jump in here with some more info on how IVAO works...Best,sg

ok i will start editing the cfg's now and then test it, tonight/ tomorrow, i will report back.thank you Scott,rick

edited all the ivao.cfg's notting happened, tried i flight above the netherlands, with cold temp setup. no contrails, i used a ivap f16 ai plane and it had contrails the others which were flown by other pilots not.anyone have a idea??