We should have three types of takeoff:
- Line up and takeoff
- Normal takeoff
- Immediate takeoff
Some examples:
Line up and takeoff (skip to 6:05)
ATC (air traffic control) gives the aircraft the permission to line up. Aircraft stops on the runway, waits for takeoff clearance from ATC, after which the pilot spools the engines up, and takes off.
Normal takeoff (skip to 3:00)
ATC gives the aircraft the permission for cleared takeoff. Aircraft taxis to the runway, after having received the takeoff clearance, will soon take off.
Immediate takeoff
ATC gives the aircraft the permission for cleared immediate take off. Aircraft taxis to the runway, immediately throttles up the engines, and immediately takes off with neither stop nor standby.
Reason for implementation:
To increase runway usage (for immediate takeoff) and realism