Prague - DC2/DC3 flying from remote part of airport

Hi, what is the story with the DC2/DC3 which flies form the remote part of Prague airport, i notice you get 50 credits when this departs, but you don’t have any control over it ?

are there any more of these ‘bonuses’ in the game ?

On Inn there is An helicopter

There is whole game about that part of airport AirportPRG and that DC-2


excellent, thanks for this.