Richard E. Byrd the rank of captain. After a further summer of exploration, the expedition returned to North America on June 18, 1930. A 19-year-old American Boy Scout, Paul Allman Siple, was chosen to accompany the expedition. Unlike the 1926 flight, this expedition was honored with the gold medal of the American Geographical Society. This was also seen in the film "With Byrd at the South Pole" (1930) which covered his trip there. Byrd, by then an internationally recognized, pioneering American polar explorer and aviator, served for a time as Honorary National President (1931–1935) of Pi Gamma Mu, the international honor society in
Lincoln Aviator ever sold by Lincoln. As the division expanded its use of crossover SUVs, the Aviator was not directly replaced; for 2007, the five-passenger MKX (initially intended to wear the Aviator nameplate) was offered with a similar exterior footprint, with the 2009 MKT offering six/seven-passenger seating (slotted slightly below the Navigator in size. For its entire production run, the first-generation Aviator was assembled at St. Louis Assembly in Hazelwood, Missouri alongside the Explorer and Mountaineer. In March 2018, Lincoln unveiled the prototype for the second-generation Aviator, intended to enter production in 2019. Scheduled as a 2020 model, the Aviator will be