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Swearingen was notable for developing modifications from existing production aircraft such as the Piper PA-30 Twin Comanche from the Piper PA-24 Comanche single engine series, the Swearingen Merlin turboprop aircraft from the Beech Model 50 Twin Bonanza. Swearingen also developed original aircraft designs such as the SX-300 experimental airplane and Sino Swearingen SJ30-2 executive jet.
- Flight International 3 June 2014 page 32
- Matt Thurber (2014-05-20). "Aviation World Loses Legendary Designer Ed Swearingen | Aviation International News". Ainonline.com. Retrieved 2014-07-09.
- Living Legend Ed Swearingen’s Lifetime of Invention - Airport Journals, May 2009
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