OC37
The HS1 high speed South Eastern trains (Javelin) run between Ashford and London daily and at the end of their shift they bed down for the night at the Ramsgate sidings. Ramsgate station is a 7 minute drive from the airport. The Javelin service runs slow to Ashford and then operates as a High Speed service to London. In pre COVID times the journey time was just over the hour to get into London (Stratford interchange was substantially under the hour mark).
Of course the renewal of Manston is not predicated on pax traffic but freight for which it is ideally suited, has a pre-existing BIP and high quality chilled freight sheds. The USP is that the Cargolux 747s could get their first pallets onto waiting lorries and on the road to London within 40 minutes of touching down. In all likelihood cargo landing at Manston could be in the London morning markets well before Heathrow cargo has even left the airport boundary.