14K views · 68 reactions | ️ “Mayday, mayday, mayday.” This is the art of ‘pressure breathing’ – an emergency oxygen system that would be required if they were faced with catastrophic depressurisation at 40,000 feet or above. It’s designed to keep them conscious long enough to make a mayday call and land the plane. #pilot #jet #fighterjet #aviation #flying #raf #airforce #training #forcesnews | Forces News | Facebook