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Space Boundary is considering again as a Virgin Galactic test program



Washington – As Virgin Galactic goes into the space of its first suburban flights, a possible change in the term can make the company easier to achieve that landmark.

In an interview with CNN published on November 30, Virgin Galactic founder Richard Brennes said that the company spaceshipship was in the week to fly the suburbital space plane into space. VS.S. The vehicle, named Unity, is doing series of recently conducted test flights on July 26.

Responding to Bruns in a question, "Space is difficult," cited the anonymous commentators, who do not believe that the company will be able to reach the place with SpaceShipTwo. "Obviously, we want to prove our critics wrong and I reasonably believe that, before Christmas, we'll do it."

Branson suggested in an October meeting with CNBC that the first flight in space by SpaceshipTwo will be "not weeks, not months". Company officials refused to comment on that timetable, sticking to the long-standing policy of approving the Branson set schedule and timings, although they suggested that they planned to have at least one more powered test flight before the end of the year.

Georges Whitsides, chief executive of Virgin Galactic, did not give a specific schedule in the speech on November 27 at SpaceCom Expo in Houston, but suggested that more and higher heights, tests are coming soon. He said the next few flights will be more attractive than the July flight, which has reached the height of 52 kilometers. "We'll see some of them soon."

It was a 42-second, high-speed rocket motor of Spaceshiptovo in July flight, designed to fire for roughly 60 seconds on a normal flight. While discussing the November 2 dinner for Space Settlement Summit in Los Angeles, Whitsides said, "We are in a position where we burn a rocket motor, we will add a full recovery."

One question is how many spaceships will need to reach the height of the idea to reach space. There is no formal limit on treaties or laws, but the industry has repeatedly used a height of 100 kilometers, which was called the Carmen Line after Aerospace engineer Theodore von Carmen. In 2004, the commercial subbright vehicles won by spaceship were preferred during the Ansari X Prize competition, when they landed twice in three weeks, and three months ago during a test flight.

Despite industry speculation, spaceships will not be able to achieve that height in the current arrangement with the full payload of participants or the experiments on the board of spaceflights. WhiteSides asked about her height in the Los Angeles talk, instead of US. The lower height used by the government was mentioned.

"For Virgin Galactic, the big landmark we experience is the height at which NASA and air force people get their astronaut wings, which is 50 miles." "For us and our customers, I think we'll focus at least 50 miles in the beginning."

International organizations are now reviewing the definition of Karma line. In a statement on November 30, Federation Aeronautical International (FAI), the World Hawaii Game Federation, which complies with records for both aviation and spaceflights, announced that it will work with the International Astronautical Federation (IAF) and determine that the height should be regarded as boundary Space for its record keeping.

"Recently published analysis presents an amazing scientific case for the reduction in height from 100 kilometers to 80 kilometers," FAA said in its statement. Eight kilometers is about 50 miles. FAA said that IAF was proposed that "international workshops have been organized during 2019 so that this issue can be fully met with the participation of aggression and estrodynamics and astronautical community."

FEI's statement did not mention specific analyzes which re-considered the height of the Karma line. However, one such paper was recently published in the journal Acta Astronautica An astronomer and spaceflight historian Jonathan McDowell at Harvard-Smithsonian Center for Astrophysics, who suggested to reduce the working line to 80 kilometers.

In addition to checking the paper, historical records, shows a detailed mathematical analysis, showing modeling forces on the spacecraft traveling in the above atmosphere. It came to the conclusion that for most satellites, gravity aerodynamic forces crossed the height of 70 to 90 kilometers. "Based on these physical, technical and historical arguments, I suggest that the value of 80km is a more appropriate choice for use as a canonical lower-level place where the divider line between the atmosphere and the space Desired. "Paper concludes.

WhiteSides mentioned the paper last month in its comment. "If you look back at a space history, it is not clear that Carmen really believes in 100 [kilometers] It was really a decent place, "he said." That's a nice round number. "

The division line is not a problem for another company that follows the commercial human substrate spaceflight system. The new version of the Blue Origin has crossed 100 kilometers on some of its tests, the latest one is July 18, in which the vehicle's crew capsule is about 119 km away from the vehicle after its departure from the vehicle's propulsion module. .


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