April 3 1933 – The Marquis of Clydesdale Leads the First Flight Over Mount Everest

April 3 1933 – The Marquis of Clydesdale Leads the First Flight Over Mount EverestRate this post *Image Credit: Wikimedia Commons At the height of an era when pilots of all kinds pushed their aircraft to the limits, Douglas Douglas-Hamilton, the Marquis of Clydesdale, took his Westland PV-3 to a whole new altitude — he led a formation of Royal Auxiliary Air Force planes over the summit of Mount Everest. With the successful completion of his objective on April 3, 1933, “Lord Clydesdale” pipped a pair of German and French teams but, more importantly, made a crucial discovery for the future of aviation: the need for cabin pressurization. In the […]