Visible Icing! Too cool!(pun intended)I finally got around to in-flight testing of my anti-ice systems. I used Chuck's Ice gauge to determine heavy icing conditions.The Pitot took almost a full minute to clear and resume normal ASI operation. In the same conditions the FSX default 737 reacts instantly.Even with structural de-ice switch working and verified with Doug's logger, I don't have the airframe system removing the ice.Again the 737's response is immediate.The air file now has the FS9 "Record: 1513" and "Record: 1519" sections added and enabled.The aircraft.cfg has for FSX[deice_system]structural_deice_type= 1 The plane is an FS2002 ported to FS9 and, other than the de-ice, is working fabulous in FSX(besides looking great).There are no remnants from FS2K2 remaining other than the model and textures. The FS9.air has been modified only to add the ice stuff.All of the gauges are new xml.Is there something in an FS2K2.mdl that could stop that from functioning? Internal variable?It's not a show stopper by any means. I'm just a guy who believes you "can" teach an old dog new tricks. Thanks to all...Don

What's "not working"?

Is the [Electrical] section of the .cfg modified to show the system working? You're working sys 1 = electrical. While the boolean shows on, doesn't mean it's actually working. The whole light section is an example... It will draw no current unless there's an .fx tied to it etc... Just a thaught.Roman

I made a simple digital gauge to show Ice Accumulation using (A:STRUCTURAL ICE PCT, Percent).I'm using both that gauge and my STRUCTURAL_DEICE switch in the plane and a default 737.When TOGGLE_STRUCTURAL_DEICE is enabled in the 737 the digital gauge immediately goes to zero. Both my switch, and the 737's, toggle.In the plane I'm working on, when TOGGLE_STRUCTURAL_DEICE is enabled the "ice" keeps accumulating.I copied the[deice_system]structural_deice_type= 1from the 737's aircraft.cfgI also used Air Update to add sections 1513 and 1519 from an FS9 plane's .air, just in case.I haven't made any changes to the electrical system;

[electrical]max_battery_voltage = 24.0generator_alternator_voltage = 28.0max_generator_alternator_amps = 250.0//          ;BusType, MaxAmpLoad, MinVoltage       BusTypes:0=MainBus,1=AvionicsBus,2=BatteryBus,3=HotBatteryBus,4-7=Generator/AlternatorBus(1-4)flap_motor         = 0, 5 , 14.0gear_motor         = 0, 5 , 14.0autopilot          = 0, 5 , 14.0avionics_bus       = 0, 9 , 14.0avionics           = 1, 7 , 14.0pitot_heat         = 0, 5 , 14.0additional_system  = 0, 5 , 14.0marker_beacon      = 1, 2 , 14.0gear_warning       = 0, 2 , 14.0fuel_pump          = 0, 5 , 14.0starter1           = 0, 20, 14.0starter2           = 0, 20, 14.0starter3           = 0, 20, 14.0light_nav          = 0, 5 , 14.0light_beacon       = 0, 5 , 14.0light_landing      = 0, 5 , 14.0light_taxi         = 0, 5 , 14.0light_strobe       = 0, 5 , 14.0light_panel        = 0, 5 , 14.0

The 737 does not have the BusType, MaxAmpLoad, and MinVoltage descriptors. The 737 works...Problem having them?I'll try commenting them out.I'm befuddled as to what I have missed.It seems it doesn't matter though, I've had both the planes up to 25% ice and neither exhibited any change in flight dynamics...Don

It seems it doesn't matter though, I've had both the planes up to 25% ice and neither exhibited any change in flight dynamics...Don

I could be mistaken, but I think you're right...I don’t believe ice affects flight dynamics…just pitot and carb.If you want a trip down the ‘rabbit hole’ you could try to add the ice dynamics by means of your spoilers.That’s very tricky; you’d need to manage 2 new variables - one for the spoiler animations and one for the spoiler sim-action.Then you’d need to set the FS spoiler event accordingly and override/mix user inputs during icing...which can be erratic if the spoilers are assigned to a joystick axis. …If you have a lot of time on your hands ;)

For what it's worth the FSX default B747-400 deicing works - ie the weight of ice increases and then immediately decreases to zero when structural de-icing is turned on. The electrical section in its.cfg file is

[electrical]                ;BusType, MaxAmpLoad, MinVoltage       BusTypes:0=MainBus,1=AvionicsBus,2=BatteryBus,3=HotBatteryBus,4-7=Generator/AlternatorBus(1-4)autopilot          = 0, 5 , 17.0avionics_bus       = 0, 5 , 17.0avionics           = 1, 5 , 17.0gear_warning       = 0, 2 , 17.0fuel_pump          = 0, 5 , 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

The FSX SDK has an entry for propellor_deice in the electrical section, but I can't see one for structural deice, This suggests that no entry is needed in the electrical section for de-icing to work - the default B747-400 works without it.,

If you want a trip down the ‘rabbit hole’ you could try to add the ice dynamics by means of your spoilers.That’s very tricky; you’d need to manage 2 new variables - one for the spoiler animations and one for the spoiler sim-action.Then you’d need to set the FS spoiler event accordingly and override/mix user inputs during icing...which can be erratic if the spoilers are assigned to a joystick axis.

Been there, done that, it works. However, I have to admit that it's a lot easier if the aircraft in question does not have spoilers because it means you can use the spoiler effect without having to worry about the visuals part.-Dai