Wednesday , May 18 2022

It is bordering on the progress of the Virgin's Galactic test program


WASHINGTON – The Galactic Virgin Mary flies her first suburbs to spaces, making potential terminology changes easier for companies to achieve this milestone.

In an interview with CNN, released on November 30, Virgin Galactic founder Richard Branson said the company had spacecraft spacecraft in SpaceShipTwo. This vehicle, called VSS Unity, has recently made some high-flying trips, July 26.

"Space is difficult," said Branson, who had not mentioned any criticism, that the company might not be able to reach SpaceShipTwo space. "Obviously, we would like to criticize our critics and I'm pretty sure that Christmas will go on."

Branson proposed in an interview with the CNBC in SpaceShipTwo that the first flight would come "in weeks or months". "Employers' officials warned at that time to refuse this schedule, because Branson set the long-term policy to adhere to schedules and deadlines, although they were expected to have at least a proven test for the previous year.

George Whitesides, the director general of Virgin Galactic, did not give a specific speech project at the SpaceCom Expo in Houston, but he did not suggest any more and the fastest flying tides. "The next flights will be even more exciting" than the July flight, since it reached 52 kilometers, he said. "I'll do some of them soon."

In that July flight, the SpaceShipTwo rocket engine took a 42-second hybrid engine that is designed to fire in a typical 60-second flight. "We are on the spot where we are adding a lot of energy, if we continue to burn rockets," Whitesides told the Space Settlement Summit in 2008. 2nd dinner at a conference in Los Angeles.

It's a question of which space to reach SpaceShipTwo altitude. Although the formal space of covenants or laws is not strictly used, the industry has used 100 kilometers of height, called Karman Line, at the end of the aerospace Theodore von Kármán. This definition is noteworthy for the subarubital vehicles marketed at the Ansari X Prize, when it was won by SpaceShipOne in 2004, when it was lifted two weeks before the altitude and three months before the test flight.

Industry speculation has been, however, SpaceShipTwo will not be able to attain altitude in its current configuration, full space pilots' participation or experiments on the board. Whitesides asked about the altitudes in Los Angeles discussions, at the height of the US government.

"Virgin Galactic, the main landmark we are to notice, is that NASA and Air Force are the 50-mile elevation of their astronauts," he said. "For us and our customers, I think we will carry 50 kilometers at least at the beginning".

International organizations are now reviewing the Karman line definition. In the 30th Anniversary of the Court, the Fédération Aéronautique Internationale (FAI), the air sports federation in the world that maintains the record of the aircraft and space flights, would announce that the International Astronaut Federation (IAF) would work on the altitude to consider the space limit for its maintenance record purposes.

"The recently published analysis presents a credible scientific case to reduce the altitude from 100 km to 80 km," FAI said. Hundreds of kilometers are about 50 miles. FAI suggested to the IAF "an international workshop that was carried out in 2019 for the participation and participation of astrodynamics and astronautics community."

The FAI statements did not mention the exact analysis of the Karman Line's review of the altitude. This paper was published in the journal Astronauts Act Jonathan McDowell, an astronomer and space traveler historian at Harvard-Smithsonian Center for Astrophysics, recommended that he lower his 80-kilometer Karman Line.

This paper, apart from studying the historical record, was a broad mathematical analysis, modeling a spacecraft traveling through the high atmosphere. In most of the satellites, the gravity passed aerodynamic forces at 70 and 90 kilometers high. "Based on these physical, technological and historical reasons, the value of 80 kilometers is the best option to use as a canonical space under the space space, as you would like a linear division between space and space."

Whitesides cited this paper in his comments last month. "If you look at space history, it's not clear, Kármán really thought 100 [kilometers] It was a really good place, "he said." It's a pretty number. "

This split line is not another company, looking for a commercial space space suborbital system. Blue Origin New Shepard has exceeded more than 100 kilometers in the test flights, including July 18, when the vehicle's crew capsule reached 119 kilometers in height, taking advantage of the abortion engine, separated from the vehicle's propulsion module. .

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