Kathmandu, Aug. 23 -- The early 1930s were an era of aviation achievements when Charles Lindbergh crossed the Atlantic, Richard E Byrd reached the poles and Amy Johnson flew solo from London to Australia. Experimental flights were attracting not only swashbuckling, pioneering pilots, but also nationalistic sponsors keen to advance technology and force new scientific frontiers.

This month a new biography is published about Lucy Lady Houston, a former chorus girl notorious as the richest woman in England who brushed aside scandal to become the patriotic financier of the first flight over Mount Everest, backed secret military research, and funded the creation of the Spitfire aircraft.

Still nobody had flown over the highest point on earth,...