A320 turnaround times
In another life, we used to transit the 320 in about 35 minutes, if it needed full tanks 40 -45 minutes. We used to manually load the plane as well. The 737 (we used to operate those as well) could be turned around in slightly less time but for ease of operation, the planned time for the turnaround was the same. In my current reincarnation, they think an hour is the bare minimum, but their paperwork system prohibits refuelling while there are passengers on board. The aircraft have the cargo loading system as well. This place likes the idea of using $40 million airplanes as museum pieces.