This week we bring you the fifth installment of Alden McWilliams’ illustrated tribute to the pioneer fliers of the early days of aviation which he called “They Had What it Takes”. Appearing in the June 1937 Flying Aces, it features Howard Hughes, who McWilliams called “The Scientist of Speed”. Next week we bring you Part Six, which tells the story of Jimmy Doolittle, who between WWI and WWII was generally considered to be America’s best pilot.

• Download “They Had What It Takes – Part 5: Howard Hughes” June 1937, Flying Aces