More food for thought:
3 other submersibles visiting Titanic almost suffered the same fate as Titan
The loss of the submersible Titan during its expedition to the Titanic has raised questions about the vessel's safety, but Titan is only the latest craft to find itself in peril at the site of the world's most famous shipwreck.
Of the 10 submersibles in the world that can reach depths of 4,000 metres or greater, the Titan, owned by exploration company OceanGate Expeditions, was the only one that wasn't certified by any regulatory body, and OceanGate had been warned by both industry experts and one of its own senior employees that the vessel might be unsafe.
Still, no matter how reliable the vehicle, diving to such extreme ocean depths is always risky. At least three previous expeditions to the Titanic had close calls that could have cost the crews their lives.
Did anyone see the 1985 IMAX film Titanica? Here's something that happened during the filming:
Two Russian Mir submersibles made 17 dives over the course of the expedition, and on the last one they hit a literal snag.
MacInnis's submersible had set down in the wheelhouse, at the very spot where captain Edward Smith may have stood when the Titanic sank beneath the waves. When the crew finished filming and tried to lift off the platform, they realized they were caught on something.
After a moment of panic and a string of expletives, they called in the second Mir submersible for assistance.
The pilot of that second vessel was able to see that their left landing skid had slipped under a mass of wires, possibly phone cables that had once led into the wheelhouse, and give them directions on how to manoeuvre their way out of the tangle.
"We had that second pilot, that second sub, self-rescue capability," said MacInnis in an interview with Times Radio, "so we were very fortunate."
And then, James Cameron while getting footage for the 1997 blockbuster:
Another film shoot at the shipwreck led to a near-death experience for director James Cameron.
Cameron made several trips down to the wreckage in fall 1995 while filming for his 1997 blockbuster Titanic, and he was on his third dive with submersible pilot Dr. Anatoly Sagalevich and a Russian engineer when they encountered an unexpected sandstorm on the ocean floor.
As Cameron recalls in the 2009 biography The Futurist, by author Rebecca Keegan, "Anatoly said, 'Oh, no,' something you never want to hear a pilot say, and we locked eyes for a second."
Fighting against the strong currents had sapped the submersible's power supply, and they were almost out of batteries.
Immediately, they aborted the dive, but, at 25 metres above the seabed, it was as though they had hit a ceiling. The submersible stopped rising and sank back to the ocean floor.
They sat for a half-hour in total darkness and near-freezing temperatures to give their battery a rest before trying again, only to be stopped for a second time at 25 metres.
Unbeknownst to them, they were caught in a downdraft caused by the flow of the current over the shipwreck. In a stroke of good luck, however, each time the stream pushed them back down it also blew them a bit further away from Titanic.
On their third attempt, they held their breath when they hit 25 metres but continued to rise, breaking the surface five hours later.
And then this:
Despite his fear of water, Michael Guillen couldn't pass up the opportunity to be the first reporter in 88 years to visit the Titanic when he was invited to dive there in 2000.
Submersible pilot Viktor Nischeta took Guillen and his dive partner on a one-hour tour of the wreckage, but, as the submersible crossed the debris field between the ship's front section and the stern, Guillen realized they were speeding up. Like Cameron's crew, they were caught in one of the deep sea's unpredictable currents.
"A split-second later, [our submersible] slammed into the Titanic's propeller," Guillen recounts in his book Believing is Seeing. "I felt the shock of the collision; shards of reddish, rusty debris showered down on our submersible, obscuring my view through the porthole."
The little submersible was jammed tight in the gigantic propeller's housing. As Nischeta rocked the vessel back and forth like a car bogged down in mud, Guillen thought to himself: "This is how it's going to end for you."
After almost an hour in tense silence, there was a sudden change in the way Mir felt under their feet. The growling of the engine ceased, and the submersible felt weightless again.
"OK?" Guillen asked tentatively.
Nischeta grinned. "No problem!"
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