Bhutan
Thanks for your response! What I'm interested in knowing is: if we could create a modern way of navigating in and out of Paro and at the same time publish an uptodate AIP, would there be any airlines interested in starting to fly to/from Paro?
The reason why noone else but Druk Air is flying there now is of course that it is the national airline and that you need a prior permission as well to fly there. On top of that you need a Druk Air pilot onboard as a safety pilot or you have to go thru a simulation training in Singapore or HongKong before fly there.
Right now the airport is VMC and daylight operation only. But if there was e.g. a GPS-based departure and arrival procedure and runway lighting, would there be any interest from other airlines to fly there?