i agree, with larger aircrafts YOU better pilot it to runway, AI isnt very intelligent when it comes to takeoff with the massive plane. i know because i had a ai try and takeoff in it and it got the plane stuck because the airfield is messed up because the hanger is at the end with runway to both sides of it and you pull out onto grass then have to turn onto the runway. as with all normal airfields you have the hangers next to the runway off to the side with no grass inbetween.