Hardened Surfaces?

[EirePlane]

As far as I know a hardened surface is a surface that you can takeoff and land from. Does this include any objects that you can crash into. If so is there any way of enabling this in scenery without the source files

[TJ_Gumby]

There's probably some way to do it in the sim, but what i would do is make an invisable object in EOD and place it at the same location, inside the origional. EOD allows certain objects you make to be crashable. To make it invisable, don't apply any textures to it.