title: Ed Swearingen
text: # Ed Swearingen
  
  Edward "Ed" James Swearingen (12 September 1925 – 15 May 2014) was an aeronautical engineer based in San Antonio, Texas.
  
  ## Life
  
  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 and 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.
  
  