can i just say on a plane there is an instrumant that says your flying level or turning and tells you if your going up or down so it dose not matter really an less you smash it up and through it out the window,(reply>), You have an altimeter and rate of climb indicator which will tell you what height you're at and what rate you're climbing/descending at, and you have a turn indicator which will show you the rate at which you're turning, and you also have a compass which will be rotating if you're turning,(reply>), I don't even own a glider it was just a question