Start a new world and a hide hang glider is in your starting kit, on hotbar slot 2. Stand on open ground, press R to unfold it and run off a slope; press F3 to see yourself hanging under it. In the air, W and S pull the bar in or push it out to go faster or slower, and A and D lean you into a turn. Let go and it settles into its glide. Hold R near the ground to flare, and R on your feet folds it.
Stepped off a cliff with it folded? Double tap R to rip it open, if there is room below you.
