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Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ The dragon completes the review of NASA, which is now set for a test flight on March 2

The dragon completes the review of NASA, which is now set for a test flight on March 2



<img src = "https://cdn.arstechnica.net/wp-content/uploads/2019/02/46907789141_e8398e51e6_k-800×406.jpg" alt = "It's almost time for space flight crew spaceX & # 39. s Dragon Staff met in a large meeting room at Kennedy Space Center, where for decades NASA executives reviewed analyzes of the next space shuttle mission and more often cleared the launch vehicle. there were no more crew vehicles to be reviewed

This changed this week when NASA organized a "readiness review for a flight to the SpaceX Dragon spacecraft for his first test flight, without aboard aboard, Friday's meeting was over and NASA and SpaceX attended the jury ̵

1; Dragon was ready for his demonstration mission as part of the commercial crew program on March 2. The launch time for the Falcon 9 rocket is 2:48 ET (07:48 UTC), from the Kennedy Space Center. "I'm ready to fly," NASA Commercial Director Katie Ludeders said laconically. He also participated in the flight readiness review in the floor room where so many shuttle meetings were held. "It was really a great job for SpaceX and for me personally," he said. Space missions almost returned to the United States. This mission Demo-1 must begin successfully, board the International Space Station about 24 hours later, and then return to Earth a few days Later beneath parachutes in lighted conditions. Assuming this test goes well, and once SpaceX has run an escape test of the capsule escape system, Florida's first mission to the orbit could be held later this summer in Florida.

NASA waited a long time for that moment, as of July 2011, when the space shuttle made its last flight and the agency withdrew from the centuries-old vehicles.

True Test

This will not be a pro forma test. Although Lueders and other NASA officials are happy with the Falcon 9 rocket and the Dragon spacecraft for this test flight, there are still some issues they want to close in front of astronauts Doug Hurley and Bob Behnken in the space of an identical rocket and capsule. 19659005] NASA is still collecting data on composite rocket and spacecraft vessels, or COPV, which are mainly cylinders that store rocket fuels at extremely high pressures. Engineers also want to make sure that there are enough stocks in the Drops of the Dragon for safe landing under different conditions and to explore some concerns about the fuel system in the Dragon spacecraft. Finally, a dummy will fly inside the vehicle during the test flight to determine people's tensions during the flight.

"The car is not fully qualified for flight crew, but we know the hardware is good enough for this flight." "said Bill Gerstenmayer, NASA's space flight chief. "We expect to learn some things, we want to maximize our training."

An unresolved issue

With regard to the release date of March 2, Gerstenmayer cited only one issue related to the vehicle's software approach to the International Space Station. Typically, the stand-alone vehicle will have a basic computer system to control its flight, and a separate, isolated box to handle this feature if the main computers are down. The crew dragon does not have this function.

Russia, NASA's main partner at the station, has expressed concern about this issue, noting that if this system comes out, the spacecraft can deflect and hit the station. Gerstenmayer said he believed NASA had "enough ground" for the Dragon's computer system as it is, and that it expects this week to work with Russian officials before the launch. and April, so there is a relatively small margin for this flight. The next launch of a Russian ship, Soyuz, is scheduled for March 14 and at the end of March and April there will be three space transitions and two cargo missions. In anticipation of potential meteorological or technical problems, SpaceX must have three options to launch between March 2 and March 9, but if it misses this window, it is unclear when the company will have another experience.


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