Career
Swearingen was notable for developing modifications from existing production aircraft such as the Piper Pennsylvania-30 Twin Comanche from the Piper Pennsylvania-24 Comanche single engine series, the Swearingen Merlin turboprop aircraft from the Beech Model 50 Twin Bonanza. Mr.Swearingen also developed original aircraft designs such as the SX-300 experimental airplane and Sino Swearingen SJ30-2 executive jet.