Really what should drive the location of a London corporate aircraft airport location is simple.
How long does it take to get into the City. Is there a fast rail link that can whisk you in in less than 30 minutes door to door?
North Weald is excellent but its main drawback being the conflict with Stanstead and it needs an instrument approach to be workable.
The ideal is Northolt. The MOD should relinquish their hold on the airport and allow it to be fully developed as a business aircraft centre. Fast connections into central London.
All the others are way to far out in TIME or in areas of road congestion.
Southend could work with a regular high speed non stop rail link from Liverpool street.
Even Lydd with a rail connection from Ashford and a fast non stop rail service would work.
One of the best with a 20 minute rail service into Marlybone is Denham home of the leafy lanes, Golf courses and Hooray Henries. Dig up the Golf courses, widen and extend the runway
and we could give the idle resident associations years of purpose in their lives
The marker should be can you get into the centre in 30 mins or less
Pace