Flying this specially modified Lockheed 5C Vega, famed aviator Wiley Post set many records and pioneered several aviation technologies. In 1931 Post and navigator Harold Gatty flew it around the world in eight days, and in 1933 Post became the first to fly around the world solo, taking only seven days. In 1935, while wearing the world's first pressure suit, which he helped design, Post flew the Vega into the stratosphere, reaching 547 kilometers (340 miles) per hour while cruising in the jet stream. The Winnie Mae was named for the daughter of F. C. Hall, the original owner and a close friend of Post.Designed by John K. "Jack" Northrop, the Lockheed Vega first flew in 1927. It was the first aircraft with the NACA cowl, which streamlined the airflow around and through the engine. This decreased drag and increased power plant cooling.