The service ran under the Silver City Banner until 63, at which point it became British United Air Ferries, still operating from Lydd. By the late 60s, that route had become uneconomic, and Carvairs were used from Southend until 1971. At that point the car services into Le Touquet came to a halt, and for a brief period the "Silver Arrow" Gatwick Paris service came into being. The silver arrow consisted of a BAC111 operating to Le Touquet from Gatwick (frequently outside controlled airspace under VFR) whereupon, the pax would be transferred onto a waiting train at the (now disused) Le Touquet airport station, for a 2 hour trip into Paris Gare du Nord.
Needless to say, that service was not a big hit.