Maybe not the right forum as it is a general topic, but since I mainly fly SK I post here.

Why can't the ventilation in the planes run on electricity when the plane is "connected" to the gate? Every time you board a flight it is hot and the air is thick even when the outside temperature is rather moderate and no strong sunshine. As soon as they start the engines and the ventilation works you can se the relieve among all the pax. The suit is not the most comfortable garment then...

On my last flight we had to sit in the flight for some time, but luckily the FA:s opened all the doors and created a nice draft. But it didn't take more than two minutes after closing the doors until the cabin was hot and the air thick again. The flight was not fully loaded.

Please give us an aircraft that can run the ventilation on electricity from the gate!!