DaveReidUK
Yes, I'm well aware of the trials.[...]It's those latter two measures which various proponents are lobbying for as a means of maximising the capacity of the existing runways, and permission to deploy them has most definitely not been granted.[...]Well not yet, anyway
"Well not yet, anyway" is the key here..The government have conceded the trials, they are in a corner.
It's either a third runway and being more flexible about runway utilisation, or Boris Island.
This government no way is going to sanction an expensive pie in the sky airport..So Heathrow IMO will be expanded..The only question is - When?