Editing Wiley Post (section)

===Attempted high altitude non-stop transcontinental flights===
[[File:Wiley Post Transcontinental Flights 1935.jpg|thumb|A [[Cover (philately)|cover]] flown by Post on all four of his attempts to make the first high altitude non-stop transcontinental flight from Los Angeles to New York, February–June 1935]]

Between February 22 and June 15, 1935, Post made four unsuccessful attempts to complete the first high altitude non-stop flight from Los Angeles to New York, all of which failed for various mechanical reasons. The first attempt on February 22 ended 57.5 miles north of Los Angeles at Muroc Field, CA (Now [[Edwards AFB]]). This was followed by attempts on March 15 (Cleveland, Ohio; 2,035 miles), April 14 (Lafayette, Indiana; 1,760 miles), and June 15 (Wichita, KS; 1,188 miles).

As the attempts were meant to be the "First Air Mail Stratosphere Flight" over U.S. Air Mail Route #2 (AM-2) from Los Angeles to New York, Post carried a quantity of "cacheted" [[Cover (philately)|cover]]s sponsored by [[Trans World Airlines|Transcontinental & Western Air, Inc]] on all four flights. When he was killed on August 15, 1935, ending the possibility of any more attempts to complete the AM-2 stratosphere flight, the covers were cancelled in Los Angeles on August 20, 1935, and forwarded to their addressees.{{citation needed|date=July 2019}}