> ...it's always weird noticing the plane roll 45 degrees and still feeling bum firmly in seat. Yes, that is a coordinated turn. It's one of the very first thi

> ...it's always weird noticing the plane roll 45 degrees and still feeling bum firmly in seat. Yes, that is a coordinated turn. It's one of the very first things you learn when you take flying lessons. Airplanes aren't very good at flying sideways. You can make them do it to some degree, and it is an important technique for landing in a crosswind. But they are better at just climbing or descending - from the plane's point of view. So the way you turn is to roll the plane in the direction of the turn and simultaneously start "climbing". Climbing straight "up" from the point of view of the airplane, not up according to the ground. The airplane doesn't know about the ground, it only knows about the air. A coordinated turn is a combination of banking and climbing, such that you always feel like you're being pressed straight down into your seat. And the tighter the turn, the more you are pressed into the seat. When you make a turn in a car on a flat road, you feel a normal 1G straight down and a force pushing you sideways. But if the road were perfectly banked for the speed you're going, you would feel like you were being pressed straight down in your seat. Instead of feeling a sideways force, that would be added to the downward force you feel inside the car - just like an airplane.