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New procedure for launching passenger rockets

New procedure for launching pa...
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The CXV capsule and its QuickReach II booster are shown one half second after release from the carrier aircrafts. The Trapeze-Lanyard Air Drop mechanism attached to the capsule's nose is fully extended
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The CXV capsule and its QuickReach II booster are shown one half second after release from the carrier aircrafts. The Trapeze-Lanyard Air Drop mechanism attached to the capsule's nose is fully extended
The CXV capsule begins a slow rotation toward vertical, proving that the Trapeze-Lanyard Air Drop method allows air-launching of rockets without the wings typically required to make the booster turn up towards orbit. A small parachute attached to the nozz
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The CXV capsule begins a slow rotation toward vertical, proving that the Trapeze-Lanyard Air Drop method allows air-launching of rockets without the wings typically required to make the booster turn up towards orbit. A small parachute attached to the nozz
About three seconds after release, the CXV capsule and QuickReach II booster reaches the vertical position. Had this been a full-size working rocket, its first-stage engines would have begun firing at this point.
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About three seconds after release, the CXV capsule and QuickReach II booster reaches the vertical position. Had this been a full-size working rocket, its first-stage engines would have begun firing at this point.
The Scaled Composites' Proteus aircraft carried 23%-scale versions of the proposed CXV capsule and its QuickReach II booster to test the new air-launch method. The Trapeze-Lanyard Air Drop holds on to the nose of the vehicle for a half-second after the ma
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The Scaled Composites' Proteus aircraft carried 23%-scale versions of the proposed CXV capsule and its QuickReach II booster to test the new air-launch method. The Trapeze-Lanyard Air Drop holds on to the nose of the vehicle for a half-second after the ma
Time lapse photographs, taken at half-second intervals, show the release of the CXV capsule and the QuickReach II booster.
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Time lapse photographs, taken at half-second intervals, show the release of the CXV capsule and the QuickReach II booster.
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June 18, 2005 Three weeks of flight tests over the Mojave desert have demonstrated a breakthrough in how to safely launch future passenger-carrying rockets using a carrier aircraft. Transformational Space Corp. (t/Space) and Burt Rutan's Scaled Composites drop-tested dummy boosters from an aircraft using a technique that caused them to rotate towards vertical without requiring wings. This allows an aft-crossing trajectory in which the rocket crosses behind the aircraft, greatly enhancing safety. Previous air-launched rockets such as the X-15, Pegasus and SpaceShipOne crossed in front of the carrier aircraft using wings to turn themselves from horizontal flight to the vertical position needed to achieve orbit. In addition to greatly enhancing safety, eliminating the weight of wings increases the payload the rocket can take to orbit.

The innovation developed by t/Space is a special mechanism that holds on to the nose of the booster for about a half-second after the center of the rocket is released. This slight tug on the nose starts the booster rotating as it drops. A small parachute on the rocket's nozzle ensures the rotation happens slowly.

The dummy booster dropped today was the third and final in the t/Space program, with previous drops on May 24 and June 7. All test articles dropped were inert -- two steel tanks welded together with a Fiberglas nose and nozzle. They were 23% of the size of the actual rockets to be developed for sending a four-person capsule into orbit. Since they had no engines, each eventually crashed onto the dry Cuddeback Lake, about 35 miles northeast of Mojave, CA. The wreckage was collected and removed.

t/Space is one of eight companies funded by NASA's Exploration Systems Mission Directorate to develop concepts for the agency's Crew Exploration Vehicle (CEV) that will take over non-cargo duties from the Space Shuttle. NASA agreed to let t/Space use some of its US$3 million second-phase study money to build and test hardware in addition to conducting analytical studies. The successful drop test program shows that small companies using rapid prototyping can deliver new hardware very rapidly.

"We went from brainstorm to booster drop in just 135 days," said David Gump, president of t/Space. "Program manager Marti Sarigul-Klijn proved that his computer simulations were dead-on correct each time the aircraft dropped the dummy booster."

Bob Morgan managed the Scaled Composites side of the test program that demonstrated the new air launch method, called Trapeze-Lanyard Air Drop (t/LAD) launch. This approach greatly improves simplicity, safety, cost, and reliability of launching personnel into low Earth orbit.

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