Richard Hodge on Instagram: "Today’s mystery sound is from none other than the Hughes H-1 replica, built by the late Jim Wright. The H-1 was designed and built by Howard Hughes, and bridged the gap between biplane racers of the 1930s and monoplanes, essentially serving as the foundation for all fighter planes to soon follow in WWII. Jim Wright painstakingly built a replica, faithful down to its engine choice, the ultra-rare Pratt & Whitney R-1535. This was a 14-cylinder radial that produced up t