I have spent some time thinking about and working on the Mars One again. The base configuration I am working on is a tractor/living space, a command module and rear supply module. Air tight armored gangways connect the modules. Each end of the gangways have an airtight hatch. The question I have is do I need to incorporate airlocks inside each module? The tractor and the rear module would only need one. The middles one(s) would need one at each end to assure environmental integrity in the event of a gangway seal failure. Is this just over engineering or a mission critical requirement?
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