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In article ,
"Keith Willshaw" wrote: The problem is that merely reaching the altitude is only a part of the problem. The real issue is achieving orbital velocity No, it's not. http://www.xprize.org/teams/guidelines.html "3. The flight vehicle must be flown twice within a 14-day period. Each flight must carry at least one person, to minimum altitude of 100 km (62 miles). The flight vehicle must be built with the capacity (weight and volume) to carry a minimum of 3 adults of height 188 cm (6 feet 2 inches) and weight 90 kg (198 pounds) each. Three people of this size or larger must be able to enter, occupy, and be fastened into the flight vehicle on Earth's surface prior to take-off, and equivalent ballast must be carried in-flight if the number of persons on-board during flight is less than 3 persons." -- cirby at cfl.rr.com Remember: Objects in rearview mirror may be hallucinations. Slam on brakes accordingly. |
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![]() "Chad Irby" wrote in message .com... In article , "Keith Willshaw" wrote: The problem is that merely reaching the altitude is only a part of the problem. The real issue is achieving orbital velocity No, it's not. http://www.xprize.org/teams/guidelines.html I'm aware of the rules of the X prize. Lots of posters in this thread have made comparisons with NASA and alluded to civilian space flight. You need to achieve orbital velocity to do that. Keith |
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In article ,
"Keith Willshaw" wrote: "Steve Hix" wrote in message ... In article . net, "Steven P. McNicoll" wrote: "C J Campbell" wrote in message ... The earlier flights were not done in a re-usable spacecraft. So what? So that is a large part of what makes it different from the single-shot suborbital flights of the past. Not to mention the thousands of man-hours and cast of thousands needed to turn around the shuttle. One step on the road to non-government, gold-plated, decades-long development projects type spaceflight. The problem is that merely reaching the altitude is only a part of the problem. The real issue is achieving orbital velocity and the Rutan aircraft doesnt achive much more than 15% of the velocity required to put something in orbit. That's not the point of this particular exercise. Lindbergh didn't take any passengers, or significant cargo, either. |
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