I would like the ability to sometimes become invisible to my own country's radar. Mainly so I can go NOE to an enemy base without some two FE spy upping and heading right for me. This feature would also be useful for missions and especially for goons.
The invisibilty could work within the normal radar visibility parameters for enemy cons. So you would have to be below radar alt or outside friendly radar range otherwise you would still show up. It could be switched on and off with a simple dot command, although it would probably be best to have to switch invisibilty on each flight.
If you want to rationalise this, many WW2 aircraft had some sort of IFF transponder they could switch on and off.
