A buddy of late OceanGate CEO Stockton Rush - who died within the Titan submersible when it imploded close to the wreck of the Titanic final month - has claimed he knew the expeditions would finish in catastrophe however continued to design a "mousetrap for billionaires".

All 5 folks on board have been killed, together with British adventurer Hamish Harding and father and son Shahzada and Suleman Dawood, alongside OceanGate Expeditions' chief govt Rush and the submersible's pilot, French nationwide Paul-Henri Nargeolet.

Speaking to 60 Minutes Australia, submarine operator Karl Stanley stated he had warned his buddy in regards to the risks of the craft.

"He definitely knew it was going to end like this. He quite literally and figuratively went out with the biggest bang in human history that you could go out with," he stated.

"He was the last person to murder two billionaires at once, and have them pay for the privilege."

Please use Chrome browser for a extra accessible video participant

0:38

Mr Stanley described his personal expertise of occurring a take a look at dive along with his buddy within the Bahamas in 2019.

"Every three to four minutes there were loud gunshot-like noises. It's a heck of a sound to hear when you are that far under the ocean," he stated.

He raised his issues in regards to the vessel's carbon fibre hull "breaking down" along with his buddy in a sequence of heated calls and emails, warning him "it will only get worse".

"I literally painted a picture of his wrecked sub at the bottom, and even that isn't enough," he stated.

"There is no doubt in my mind that it was the carbon fibre tube that was the mechanical part that failed."

He added: "He was risking his life and his customers' lives to go down in history."

Read extra:What happened to the vessel?The stories of the 'true explorers' on board

The agency that owned the submersible Titan suspended its commercial operations following the implosion of the car on 18 June whereas on a voyage to the undersea wreckage of the Titanic off the coast of Canada.

Presumed human stays have been recovered from the wreckage of the submersible, together with pieces of debris from the craft.

Authorities are inspecting the wreckage and investigating the reason for the vessel's collapse, which has referred to as into query the rules surrounding such deep-sea voyages.