I've searched through the SDKs from Microsoft, in particular the Aircraft Container SDK and cannot find any information on this. In the FS9.cfg file is the following entry:[AIRtoCONTAINER]SIM1=Cessna Skylane 182R RGSIM2=Learjet 45SIM3=Schweizer 2-32 SailplaneSIM4=Sopwith CamelSIM5=Extra 300SSIM6=Boeing 737-400What is the significance of SIM1, SIM2, etc.? Why are there only 6 aircraft listed here not SIM1 through SIMn? Is the SIMx used anywhere else like an .air or .cfg file?Thanks for any insight that you can provide.

This is probably the result of old code. I don't think these values are used any more.