Hello! I would like to see this in the game to go with the APU.
Why We Need This
The APU bleed valve controls the APU bleed air that goes to the left side of the bleed air system when the APU is on and the bleed air valve is open bleed air from the APU goes to the bleed air system and the duct pressure increases bleed air is now available for air conditioning and engine starting.
From reading the title, I thought this was referring to the “smoke” coming out the back of the aircraft. That would be cool. I like this idea as well. Sadly, I’m out of votes.