Near-death experience in a submarine at the bottom of the Atlantic Ocean

The Titan tragedy reminded Michael Guillen of the harrowing experience of being trapped in a submersible in a similar location in 2000.

"I was one of the first reporters to see the wreck of the Titanic at the bottom of the Atlantic. That made me very excited," Michael Guillen, an American physicist, recalled his trip as a science reporter for ABC 23 years ago.

During that expedition, Guillen accompanied his friend Brian and Russian pilot Viktor in the Russian submersible Mir-1, which was launched from the mother ship Akademik Mstislav Keldysh. After getting a good view of the Titanic's bow at a depth of 3,800 meters, they decided to move to the stern, which was quite a distance away.

The Titanic sank on April 15, 1912, after hitting an iceberg, killing more than 1,500 people. Before sinking to the bottom of the sea, the British passenger ship split in two.

Michael Guillen, American physicist and former science correspondent for ABC television. Photo: Sky News — Michael Guillen, American physicist and former science correspondent for ABC television. Photo: *Sky News*

"As we passed through the debris field to approach the stern, we were caught in a strong current. Eventually, Mir-1 got stuck in the Titanic's giant propeller," said Mr. Guillen.

"After the collision, we saw rusted chunks of the Titanic falling onto the submersible," he said. "At that moment, I thought I would not survive."

Viktor, a former Russian MiG fighter pilot, managed to get the submarine out.

"It was like your car was stuck in the mud and you had to work your way back and forth to get out," he said. "We were all quiet because we didn't want to disturb or distract Viktor. We knew we were in a serious situation, so we decided to keep quiet."

The Mir-1 submersible spent an hour on the dark seabed, when Viktor decided to turn off the lights to save energy. "During that time, I thought several times that I would not be able to escape. I will never forget those moments when I thought I was going to die," Gullen said.

At that moment, Gullen felt the submersible rising. "I turned to Viktor and asked, 'Are you okay?' He replied in a hoarse voice, 'No problem,'" he said. "That's when I breathed a sigh of relief."

Thanks to Viktor's skillful piloting, the Mir-1 submersible finally broke free from the Titanic's propeller and the wreckage. It took them about 2.5 hours to return to the surface, and those on the mothership realized that the submersible had just escaped death.

Russian submersible Mir. Photo: BBC — Russian submersible Mir. Photo: *BBC*

In 2000, only two countries could develop submarines that could withstand the enormous water pressure: France and Russia, according to Guillen.

Mir is a class of autonomous deep-sea submersibles. The project was initially developed by the Academy of Sciences of the USSR (now the Russian Academy of Sciences) together with the Lazurit Central Design Bureau and later ordered to Finland. The two submersibles, Mir-1 and Mir-2, were designed and built by the Finnish company Oceanics, under the supervision of engineers at the Shirshov Institute of Oceanography in Russia.

The two submersibles were delivered in 1987 and are operated by the Russian Academy of Sciences for deep-sea scientific research and can also assist in submarine rescue operations.

The Mir submersible is 7.8 m long, 3.6 m wide, 3 m high and weighs 18,600 kg. It can reach a maximum design depth of 6,000 m. In field tests, Mir-1 was able to reach a depth of 6,170 m and Mir-2 was 6,120 m.

The rear hydraulic thruster and two side thrusters help the Mir submersible move at a speed of about 9 km/h. The submersible is equipped with an oxygen system that is enough for a crew of 3 to use for 3.42 days.

"I'm afraid of water so exploring the ocean floor is difficult," said Dr. Guillen, but admitted that he could not turn down the attractive opportunity to learn about and report on the Titanic wreck.

Before the dive, the crew was briefed on what could happen to the Mir-1.

"We heard a true story about a man trapped in a submersible. His first instinct was to find the escape hatch above his head and try to open it. As soon as he tried to open the hatch, a jet of extremely high pressure water sprayed in, killing him instantly," Gullen recounted.

What happens if a submarine enters the crushing depth threshold — What happens when a submarine is crushed under the sea. Video : *Fleet*

Guillen was so worried about a repeat of this scenario on his ship that he said he became more vigilant while trapped and prepared to prevent anyone from panicking.

"As a scientist, I immediately thought about how much oxygen we had left and what we could do. I thought about how we could get out of there and I had to accept the fact that we had no way out. That's when the thought of dying crossed my mind," he said.

Thanh Tam (According to BBC )

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