Starboard engine start
The pilot started the starboard turboprop and idled for about ten minutes before taxiing towards the runway.
Actually by doing so he also started the much needed, air conditioning as it was getting pretty stuffy and hot inside the cabin.
Small planes like the ATR 72 don't have an on-board APU (auxiliary power unit) like bigger commercial jets do, so they have to run one of the engines in order to get the air conditioning running just as you would with your car.
In the case of the ATR 72, the pilot could also apply the propeller brake so that the blades would be stationary but I guess in the 45+ degree Celsius heat on the tarmac having the propeller blades cool the main engine is a good idea.
Starboard engine start
The pilot started the starboard turboprop and idled for about ten minutes before taxiing towards the runway.
Actually by doing so he also started the much needed, air conditioning as it was getting pretty stuffy and hot inside the cabin.
Small planes like the ATR 72 don't have an on-board APU (auxiliary power unit) like bigger commercial jets do, so they have to run one of the engines in order to get the air conditioning running just as you would with your car.
In the case of the ATR 72, the pilot could also apply the propeller brake so that the blades would be stationary but I guess in the 45+ degree Celsius heat on the tarmac having the propeller blades cool the main engine is a good idea.