Why does Soyuz TMA-11 miss out?

The Soyuz spacecraft TMA-11 crew had a press conference in Star City on April 22 to tell about the landing. On April 19, for technical reasons, they landed later, not following the normal process but following the "trajectory of the projectile" and not falling in the correct position.

They were only found 40 minutes later. At the press conference, the three members shared their experiences of landing that they called this " hard landing ".

"Hard landing"

From left to right: Yuri Malenchenko (Russia), Peggy Whitson (USA) and Yi So Yeon (Korea) at a press conference in Star City (Photo: AP)

First of all, it is very fortunate that the " rough response " does not seriously affect the three members' health. American astronaut Peggy Whitson only complains a bit of vestibular disorder. She told me that this " raw grounding " brought her unpleasant sensations, she felt better after a few days of treatment. "History shows that Soyuz trains are very reliable, I hope the techniques are good. I will clarify the cause of this missile landing. "

Meanwhile, for the crew's " new " member and space flights, South Korean astronaut Yi So Yeon, this crashing landing brought a memorable experience. She said she was afraid she would die in the center: "At first I was scared because the fire was burning out of the train compartment. I thought we might die? But when looking at Yuri Malenchenko and Peggy Whitson, see Their faces are not worried, I am satisfied ". Yi So Yeon added that when landing, Soyuz TMA-11 did not warm up even though the fire was fiercely burning outside.

Russian astronaut Yuri Malenchenko commented on the landing on "nothing scary" because it is one of the "normal methods of landing". Malenchenko insists that the landing is not due to the crew's operation and "time will answer why".

UFO

The landing device of the Soyuz TMA-11 manned boat landed 420km from the designated place of the Arkalyk (Kazakhstan), in a field. Flight controllers lost contact with the crew for an hour when their cabin landed, so it was not known where the crew had landed.

Experts around the cabin have just arrived in northern Kazakhstan - (Photo: Reuters)

12 helicopters, three planes and six cars of the Russian Space Flight Control Agency were sent to find them. 40 minutes later, the crew was found.

They have escaped the ship's landing gear and are struggling with the curiosity of the local residents. "We escaped out of the cabin. I saw the locals drove close and scouted, about 15 people. They were surprised to know who we were. One pointed to the cabin and asked: " It's is the boat? "The second person asked us" where did we jump down from here, plane? " - Russian astronaut Yuri Malenchenko said - We explained we were astronauts from the National Space Station. They nodded, then asked where we came from because they still didn't believe we flew down from . the universe, only when they saw our astronaut clothes, did they understand them. who I am".

Bullet trajectory

The incident repeats

In the history of ISS, there have been two incidents of the past landing, 2003 and 2007. Since this is a Russian ship, US space experts do not want to speculate on the cause, but are waiting. Technical analysis results of Russia.

Many American observers have expressed anxiety.NASA is planning a " retired " space shuttle after 2010, and relies only on the Soyuz to bring American astronauts to ISS and return.

NASA's new spacecraft was only completed early in 2015. In an interview, a NASA director, Bill Gerstenmaier, said the incident was not dangerous, and urged people to be patient. waiting for the investigation results from Russia.

According to CBS, before entering the earth's atmosphere to prepare a landing, the crew detonated fire bolts to separate the connections of the three compartments on the ship. Only the central compartment (with astronauts) was built to withstand the vessel's vibration when returning to the atmosphere, the other two compartments, upper and lower, will burn in the air.

A trip back to normal, controlled, is when the central compartment landed gently, gradually. The most important problem is that when the ship returns to the atmosphere at 828km / g, Soyuz is tasked to slow down to 5.4km / hour thanks to a rocket repelled and thanks to parachute.

However, a Korean newspaper quoted Choi Gi Hyuk, director of the Korea Astronaut Programs, saying Soyuz TMA-11's boosters did not work after the ship flew to the earth's atmosphere. , until it opens. So Soyuz had crashed straight into the ground, also known as a bullet landing - 30cm deep in the ground. Only two seconds before landing, this booster worked, but it was too late to slow down.

Uncontrolled, fast and deep landing, making the crew suffer 10 times the force of Earth attraction, can affect health, especially for those who have been in zero gravity quite a long time. That's what Russian commander Yuri Malenchenko and American astronaut Peggy Whitson, who have been on ISS for six months, suffered. Meanwhile, the influence with Yi So Yeon may be milder because she is only 11 days old in space.

Ng. Thanh (According to Interfax, Itar Tass, CBS, Tuoi Tre)