Airporters could connect between airports and around airports, thus forming a hub.
They could connect to other transport hubs too. That might please the Chinese who recently criticised Heathrow for being short of capacity!
The excellent site myDestination.com has a simple map of London airports.
These could be interconnected by an airporter network. I haven't shown all the links.
But why stop there? Already HS1 has security checks in place, so why not check into the London Airports hub there? Airporters could connect to any transport centre so long as it had appropriate check in facilities. For example the new railway station at Reading would be a fantastic connection for traffic from the west.
Again, I haven't shown all the links.
Corny, but I think it's an idea waiting to take off, and I've written it into the draft of my second novel in the Buffalo Future series.
What do you think?
Elder Adok