Indonesian submarine may have been dragged by ‘invisible force’ to the bottom of the sea
A massive underwater wave may have been responsible for the doomed Indonesian submarine dragging to the bottom of the sea, killing everyone on board.
The ship went missing on April 21 with 53 crew on board, losing contact while conducting a torpedo exercise.
Indonesian submarine KRI Nanggala 402 was found in three pieces at the bottom of the Balinese sea, days after it went missing.
The pieces of the ship were discovered hundreds of meters beyond the submarine’s driving range, and while cleared to dive – it had dived below self-operating levels.
More details on what happened to the submarine come to light with Navy officials offering a theory on how it sank.
According to the ABC, authorities suspect that an “internal solitary wave” may have caused the sinking.
They say there is evidence that an underwater wave occurred in the Balinese Sea near the time the ship disappeared as it passed through Lombok Strait, an area known for its treacherous waters.
These types of waves can cause intense vertical pull under the ocean surface – which could have dragged the submarine into the depths of the sea.
“Internal waves are generated when the interface between the layers is disrupted, such as when the tidal flow passes over rough ocean floors, ridges, or other obstacles,” NASA said.
“The Lombok Strait, which is a relatively narrow passage between Bali (west) and Lombok (east), allows water to flow from the Pacific Ocean to the Indian Ocean.
“The bottom of the strait is complex and rugged, made up of two main channels, one shallow and one deep.
“Due to the variation in water movement due to the complexity of the channels and the ocean interface, the tides in the Strait have a complex rhythm but tend to combine about every 14 days to create a flow of exceptionally strong tide.
According to The Straits Times, Former submariner Rear Admiral Iwan Isnurwanto spoke to the media about the theory on Tuesday.
“If we are struck by an internal wave (coming from above), that would be the nature that we are facing. We would be swept away by the waves, sending us down a rapid descent. No one can fight against nature, ”he said.
The publication said that on April 21, when the submarine went missing, there was a huge internal wave in that region which was due to the difference in density between the Lombok Strait and the deeper ocean north of Bali.
“We’re talking about two to four million cubic meters of water hitting you. Could anyone overcome this? he said.
“The Nanggala submarine descended 13m and could have been caught in the internal wave.”
Rear Admiral Muhammad Ali, deputy for planning and budget to the head of the Indonesian navy, explained that the investigation was still ongoing, adding that they would bring in external experts from the submarines for the examine.
He also said the phenomenon would be taken into account when planning future Navy operations.
Earlier theories as to why the submarine sank are also being investigated.
The Navy did not rule out a power cut during the dive, which could have resulted in loss of control of the vessel, causing it not to be able to perform emergency procedures, The Straits Times reports.