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NASA, the space outer space explorer of the dragon for a critical test March 2 – Spaceflight Now



HISTORICAL ISSUES FOR CBS NEWS AND USED WITH ACCESS

The spacecraft of the Dragon crew and the Sokil 9 missile designed for the Demo-1 mission in the SpaceX hangar at 39A on December 18, 2018. The executives checked the flight readiness on Friday and removed SpaceX to continue their work on preparing the Falcon 9 missile and Crew Dragon commercial voyage to launch on March 2 at an unsigned test flight to the International Space Station

is a critical milestone in the commercial program. NASA for $ 6.8 billion, which aims to end the agency's sole dependence on the Russian Soyuz spacecraft to send US and astronaut partners to and from the station for the relocation of the space boats ca eight years ago.

Everything goes well, NASA's two astronauts are hoping to fly aboard the "Crew's Dragon" spacecraft on its first Pilot Pilot Flight in July.

"This is more than a trial flight, it's really a mission to Internati at the space station, it's part of the Commercial Crew program that really prepares us for a … flight of the crew that is coming out later," said Bill Gerstenmeier, director of space flights at NASA headquarters.Thus is a completely critical first step we are making when we move to the final return of the crew's launch capabilities back to the US »

The ascent from the historic site 39A is aimed at 2:49:03 Morning EST is a week from Saturdays, about the moment when Earth is rotated Lee moves the rocket to the orbit of the space station, the only way that the current missiles can meet an orbital target, which moves for almost ninety kilometers per second

Backup launches are available on March 5 and March 9, but after that, NASA would have to stand before the Russian Alliance Flight, scheduled to begin on March 14, to landing cosmonauts Alexei Ovchinin, NASA flight engineers Nick Hague and Cristina Koch to the station.

Ovchinin and The Hague suffered serious crashes during the first ascent into space last October, but the capsule and crew landed safety about 250 miles from the launch pad in Kazakhstan. The Russian space agency corrected this problem, revised the launch schedule, and Koch, who had already been trained on the flight, was added to the mission.

In any case, NASA managers visiting the FRR on Friday at the Kennedy Space Center considered the launch processing to date and the status of the remaining "open" items to be resolved or rejected before the flight, and those that can be postponed in the near future.

Among the topics discussed was a parachuting crew system and testing for use in future pilot missions dealing with temperature problems with maneuvering caps engines and the status of processed high pressure helium cylinders known as COPVs that are immersed in super -cold liquid oxygen inside the Falcon 9.

Problems with an earlier version of the tank were accused of an exciting blast of Falcon 9 on the site in 2016. when the rack holding the tank in place did not succeed, which led to the destruction of a ship with a dragon jammed to the station.

The question for the Crew Dragon mission is an understanding of physics that has led to an explosion on the site and the conviction that recycled tanks, known as COPV version 2.0, are not vulnerable to the same failure mode.

"One of the things in which a composite pressure vessel has (have) fibers that twist together," Gerstenmeier said. "As it is, they can break up and, as they break, they can potentially generate heat, if they can generate enough heat in the oxygen medium, they can be a source of ignition."

"Now we are coming back and we are convinced that this the gap is so unlikely that this is not anxiety. "

One issue that needs to be addressed in the near future is concerned with Russia's concerns about the control systems and safety on board the Dragon of the crew that will control. The final approach of the spacecraft to the space station

Gerstenmeier stated that European, Japanese and Russian spacecrafts that meet the station usually carry independent systems that can interrupt the approach in the event of a massive accident of the computer that can leave the ship when collision Usually with the laboratory. The crew's dragon rests on the redundancy of the original computer system.

"One of the actions I have been aiming at was to look a bit more thoroughly at some of the troubleshooting and response to various failures to make sure that the computers do all the right things that we do not get in a situation where the car is essentially dead or sleeping, and then just continues its approach and faces the station, "said Gerstenmeier.

Is there a separate system or separate box to pass this backup capability? We believe that we have a sufficient justification for this. "

Bill Gerstenmeier, director of NASA's Intelligence and Human Services Directorate, communicates with journalists at the Kennedy Space Center in Florida in New York. Author: NASA / Chris Swanson

Gerstenmeier said that such technical problems are not unusual in the development of human-assessed spacecraft and is part of the Demo 1 mission, "we have not installed a common envelope that can handle some hardware and how it can be used "during pilot flights.

"But we know that the hardware is enough to make this demonstration flight," he said. "In fact, we want her to go on a flight to see if there is something else we missed, and we hope to find out some of the things about this fight."

Assuming Demonstration 1 is being removed on March 2, as it is now scheduled, the "Dragon" spacecraft will carry out an autonomous rendezvous by catching the space station the day after launch and moving to the pier of the laboratory's front port, the one that once visited the space shuttles, about 6 am on 3 rd of March. 19659004] The crew of the station – Russian commander Oleg Kononenko, Canadian astronaut David Saint-Jacques and NASA flight engineer Anne McClean – will open hatchways and inspect a new spacecraft within hours of docking

The flight plan requires demonstration of 1 Dragon Crew to rosette # 39; unite March 8 and return to the Atlantic Ocean surge approximately 230 miles east of Cape Canaveral. SpaceX recovery teams located nearby remove the capsule onto the ship and pull it back to the Canaveral port for detailed inspection after the flight. Behcen and Douglas Hurley hope that this summer they will be able to tear themselves away from the crew to release the first American astronaut aboard an American rocket from the United States after the completion of the shuttle program in July 2011.

NASA also funded the development of the Boeing Capsule, known as the CST-100 Starliner, which is scheduled for an unsigned launch at the top of the United Launch Alliance Atlas 5 missile this spring. The first Starliner pilot flight, carried by Boeing astronaut Christopher Ferguson and NASA crew Nicole Mann and Mike Fincke, is scheduled for the autumn timeframe.

A final US-based Soyuz flight is scheduled to launch in July. Considering the constant possibility of unexpected problems with the ships of commercial crews, NASA is studying the possibility of acquiring two additional Soyuz armchairs, one for use in the fall, and another in the spring of next year. a billion for 20 flights to the space station and another one for an indefinite amount, at least for six additional flights by 2024.

SpaceX also has NASA's $ 2.6 billion contract for the construction and launch of a pilot version of its Dragon capsule. Boeing received a $ 4.2 billion contract for the construction of the CST-100.


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