Four minutes of life and death struggle

  The narrow Norwegian fjord looks calm. The giant bulk carrier, the Rockis, is moving smoothly here, about to sail out of the channel and into the open sea. Without any warning, the Rockis suddenly began to tilt, and then turned to the bottom. It took only four minutes from the beginning to the end of the shipwreck.
“Gravel ship” laying gravel

  On the west coast of Norway, the coastline is long and fragmented. The jagged fjord goes deep into the inland, producing numerous narrow waterways that connect the Norwegian port with the open North Atlantic. These waterways are bustling with hundreds of cargo ships coming in and out every day. However, these waterways are also full of dangers. They are very narrow and covered with rocks, reefs and other dangerous objects. Therefore, the ships here must be equipped with a navigator who is familiar with the local geographical environment.
  On January 19, 2004, the loose cargo ship Rocky, who had a strange appearance, came here. It has just started from the port of Aikefu on the west coast of Norway and is loaded with 23,000 tons of gravel. It is planned to travel to Germany and a neat gravel layer along the way to protect deep-sea cables. Therefore, the Rockis is not an ordinary bulk carrier, but also a watercraft.
  Specifically, the Rockis is 166 meters long and 11 meters deep. It is powered by heavy oil and is known as the world’s largest “soft inner pipeline gravel laying ship”. The six cargo holds on board are filled with gravel, and each cargo hold is as high as four floors. The cargo hold is connected to a conveyor system and a piping system that extends below the hull. The conveyor system feeds the gravel in the cargo hold into the piping system, which then falls to the bottom of the sea through a funnel-like device at the bottom of the ship. As the Rockiske travels along the deep-sea cable, these continuously released gravels will slowly lay over the deep-sea cable, protecting the latter.
  The Rockis has a total of 30 crew members who perform their duties and have a clear division of labor. Captain Jan Javier is responsible for commanding all crew members. He is an outstanding voyage expert. However, since the cockpit is located close to the middle of the hull, it has tall cargo compartments and heavy equipment in front of and behind it. The captain can only see the equipment and buildings on the ship in the cockpit, and almost no water surface in front ( This situation is equivalent to when the car is driving, the engine hood on the front of the car is covered with obstacles that obstruct the line of sight). Therefore, the captain relied heavily on the help of Wilhelm Halem when he was on the boat. Halem is the pilot of the ship. He sailed nearly 1,000 times in the Norwegian waterway. He knows the area well and knows the location of the reefs and undercurrents in the waterway.

Four-minute shipwreck

  At 4:10 pm, the Rockis had been driving in the fjord for seven hours. They came to the strait near Bergen and were about to enter the open sea. But the waterway is still narrow, and in order to ensure safety, Zhu Weike and Halem must let the hull sail along the centerline of the waterway. But it’s easier said than done. The water flow here is very complicated. It is quite challenging to keep the hull steady.
  On the shore, some citizens have noticed this huge ship. Gis Melem, who was walking with his wife, picked up the camera and was going to take a photo of the big ship, but he felt that the big ship seemed to be tilted. On the ship, the captain and the navigator also felt that the “posture” of the Rockis was not quite right. Halem felt that the Rockis had a slight inclination to the starboard side, he reported to the captain, and the captain shared the same feeling. In order to slow down the slope, Halem suggested that the hull should turn left. At this time, according to the route identified on the navigation map, the Rockis also needs to make a left turn in order to maintain the position of the center line of the waterway.
  Referring to Halem’s suggestion, Zhu Weike ordered the hull to make a left turn, but the Rockis was tilted even more in the process of turning left. Juvek realized that the Rockis would soon turn over. He ordered the assistant to sound a distress alert and ordered the crew to abandon the ship immediately. But it is too late to abandon the ship, everything on the ship is out of balance, the floor of the cockpit and the electromechanical cabin quickly “stands”, the crew and the items roll uncontrollably, they can not reach the hatch.
  When the Rockis overturned, the only crew member who escaped from the cabin was Halem, because before Juvec ordered the abandonment of the ship, Halem expected that it was a moment of life and death. He rushed to the hatch several seconds ahead and sprinted. To the side of the boat, grabbed the iron railing. As the Rockis made a clockwise roll, Halem was fortunate enough to turn to the side of the hull, and then he ran from the side of the ship to the “bottom” of the ship like a rolling ball – then the Rockis Already turned over completely, the “bottom” of the ship floated on the water, facing the sky, while the cockpit and the electromechanical cabin were completely inverted under the water.
  Gis Melem photographed the entire process of the Rockets’ capsize with a camera. The cargo ship made a 180-degree reversal clockwise in four minutes. In a twinkling of an eye, the Rockis was left alone to stand alone on the “bottom” of the ship.
Wrong basket

  The diving rescue team led by Leif Linde arrived very quickly and they searched for survivors in the cold waters. Seven hours after the shipwreck, the rescue work ended. Of the 30 crew members on board, 12 were out of danger, and another 18 crew members, including Zhu Weike, were killed. The families of the victims wanted to know how this disaster happened.
  In search of evidence, the Norwegian government recruited a fleet of heavy tugs and floating cranes and spent two months reverting the inverted Rockis. The team of computer engineers gathered all the computers on board, but sea salt had severely corroded them. Engineers use the methods of cleaning, drying, data splicing, etc. to restore the hard disk information in the computer.
  Through the data in the computer, the police finally learned the truth – it turns out that the shipwreck of the Rockis is actually caused by a series of mistakes.
  First of all, after the departure of the Loknis, the “system stability calculator” on the ship has always shown that the hull is “right and left and light”. At this time, the captain should order the crew to hold the shovel into the cargo hold, and the gravel on the right side. Shovel to the left to solve the problem fundamentally, but the crew did nothing, they let the Rockets sail in a slanting state.
  Secondly, when the Rockis came to the vicinity of Bergen, the hull had been tilted 14 degrees to the right. In this case, it was very difficult to turn left. However, the navigation record on the ship showed that the Rockets had moved too slowly during the last left turn. As a result, the ship’s route was offset from the center of the waterway, and it took 23 meters from the boundary line of the safe area, causing the rocks to hit the rocks and causing shocks. The gravel with fluidity on the ship is piled up to the right, causing the ship to turn over. In the waters near the point of the reef, the diver found a rock weighing about 20 kilograms. The rock had a red paint on the starboard side of the Rockis, which was picked up by the reef when the cargo ship hit the rocks. If the captain and navigator make an early turn, they may be able to avoid hitting the rocks and avoid overturning.
  Finally, the nautical chart does have problems. Although the nautical chart used by Halem is the latest (2003 edition), the information on the area of ​​the reef point has not changed from the previous version, and the latest update of the information on the reef point is 9 years ago. It can be said that the Norwegian Hydrographic Bureau that made the nautical chart made a mistake.
  Therefore, there is something wrong with the possibility of error. The consequences of a series of mistakes broke out within four minutes, taking the lives of 18 crew members.