Complete the indicated task to unlock the achievement.

Achievement	How to unlock
10 aircraft fleet	Airline has 10 aircraft.
100 aircraft fleet	Airline has 100 aircraft.
20 aircraft fleet	Airline has 20 aircraft.
50 aircraft fleet	Airline has 50 aircraft.
500 aircraft fleet	Airline has 500 aircraft.
First Route	Airline opens first route.
Jumbo operations	Airline is operating large aircraft.
Low Cost Airline	Airline is utilizing the low cost strategy.
Mega Operations	Airline is operating the biggest aircraft type.
Network Builder	Airline has a high number of connecting passengers.
Premium Airline	Premium Airline.
Supersonic flight	Airline starts supersonic flights.