On a tandem skydive you are secured to an instructor and skydive from approximately 10 000 feet the moment of truth arrives all too fast as your tandem master shouts in your ear are you ready to skydive you will leave the aircraft with your heart thumping here goes the wind rushes past you as you plummet ground ward accelerating to terminal velocity a speed of 130mph approximately 45 seconds after exit at an altitude of 5000ft a giant canopy made for two will be opened the tandem mas