Soldato
Ride a rocket into space and then abandon ship? You’d need to be nuts—or desperate. Either way, space diving could be the future of reentry
Scenario 1: Sport
Sixty miles up, you sit in a chair on the open deck of a small rocket, admiring the stars above, the Earth far, far below. The vacuum beyond your visor is cold, but it would boil your blood if your pressure suit failed. You give your parachute straps a reassuring pat. It’s utterly silent. Just you and your fragile body, hovering alone above the Earth. “Space Diver One, you are go,” crackles a voice in your ear, and you undo your harness and stand up. There’s nothing for it now: You paid a lot of money for this.
You breathe deeply and leap, somersaulting into the void. The mother planet is gorgeous from up here. You barely perceive that it’s rushing up toward you, and your body relaxes. You streak into the atmosphere at 2,500 miles an hour, faster than anyone’s ever gone without a vehicle. The sky lightens, the stars disappear behind the blue, and a violent buffeting begins. You deploy your drogue chute for stability; an uncontrolled spin in this thin air would rip you apart. The thick lower atmosphere slows you to 120 mph—terminal velocity. After a thrilling seven-minute plummet, you pull your main chute at 3,000 feet, hands shaking, and glide in for landing. A mile away, your rocket retro-thrusts its way gently to the ground.
Scenario 2: Safety
Sixty miles up, you float easily in the cabin of a small rocket, admiring the stars above, the Earth far, far below. Suddenly, alarms sound. Space debris has pierced the ship, and it begins to break apart. In seconds, the air is gone. It’s utterly silent. Pain gathers in your face. Your tongue and eyes seem to be boiling. The captain rushes over and flips down your visor, and you feel better. Then he screams “Go!” over the radio, and pushes you toward the door. There’s nothing for it now: You don’t want to die.
You close your eyes and leap, tumbling into the abyss. The curved horizon spins wildly. You let out a scream of terror as it rushes up toward you, and then you black out. Minutes later, a sudden jerk wakes you. This must be death, you think—your flesh meeting Earth at horrible speeds. But it’s the tug of your chute deploying at 3,000 feet. You realize you’re going to be all right. You glide in, touch down, and collapse in convulsions, traumatized. Through your tears you see your friends nearby, similarly undone but alive. You spot smoke on the horizon where, a mile away, your ship returned to the ground in an angry hail of twisted metal.
Together, the two plan to demonstrate a record-breaking 120,000-foot jump by 2009, and the truly unprecedented 60-mile space dive within two years—an audacious timetable. If all goes well, they’ll reach even higher. “Our ultimate goal,” Tumlinson says, “is to have individual human beings return from orbit alive.” That’s a drop from 150 miles—or more—involving increased heat and near-deadly Gs, essentially turning their divers into human meteorites.
Even that’s survivable, says NASA Jet Propulsion Laboratory engineer Robert Manning, who designs reentry systems for unmanned craft. Given the right protection—including thermal protection, oxygen, an aerodynamic heat shield and a control system—Manning says, a human being could, theoretically, fall to Earth from any height and survive. The question is whether Tumlinson and Clark can turn theory into fact, and whether anybody would be crazy enough to give their thrill ride a try.
Full 5-page story and details here:
http://www.popsci.com/popsci/aviationspace/3c082d2daa463110vgnvcm1000004eecbccdrcrd.html
Mad stuff the future holds!