[quote=@Mardox]
<Snipped quote by The Omnipotent Sphere>

True, true. He should have that power then. 

[@Kho] Does the private plane mechanic allow a one-time reveal of location or is permission needed every time someone wants to visit? I'm rather hoping for the second as otherwise they could lose their privacy quickly.
[/quote]

Once discovered/accessed, private planes can be accessed by the ones who have discovered/been given access to them.
It's a bit like showing someone to your house - they'll know where you live forevermore.