Seriously high pressure

Our sub, the Limiting Factor, is designed to withstand 116.7MPa, That's 100,000 tonnes of pressure bearing down on the complete sphere at Full Ocean Depth (i.e. where I’m going tomorrow). 11,000 tonnes per square metre means there will be 1,500 tonnes of pressure on the viewport and 2,200 tonnes on the hatch.

So, over the entire hull that’s akin to the weight of 291 jumbo jets or 7900 double decker buses.  
On each viewport that is the weight of 4 jumbo jets. 
On the hatch it is 5 jumbo jets or 175 London double decker buses or 1000 large SUV’s.

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