SMA Engines

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SMA Engines
Industry Aerospace
Founded 1997
Headquarters Bourges, France
Products Aircraft Diesel engines
Parent Safran

SMA Engines (Société de Motorisations Aéronautiques) is a French manufacturer of Diesel engines for light aircraft. A subsidiary of Safran, SMA engine production is currently limited to one model, the SMA SR305-230, which has received a Supplemental Type Certificate for installation in the Cessna 182Q and R.[1] The engine uses standard jet fuel, readily available at airports worldwide.[2]


SMA was founded in 1997 as a 50/50 joint venture between SOCATA and Renault Sport to develop a diesel engine for light aircraft.[3] SNECMA also entered the joint venture with a one-third interest in June 2000. The prefix of the engines changed to SR, for SNECMA-Renault.[citation needed] In 2005, Safran bought out the other partners to become the sole owner of SMA.[citation needed]


  • SMA SR305-230 4-cylinder
  • SMA SR430 6-cylinder, twin turbocharged diesel in the 330 to 400 hp (246 to 298 kW) range.[4] Certification planned for 2015[5]


  1. ^ Federal Aviation Administration (July 2006) Supplemental Type Certificate STC Number: SA03302AT retrieved: 8 March 2011
  2. ^ [1] retrieved 2016-05-06
  3. ^ Gunston, p. 218-219
  4. ^ AOPA Pilot: 34. October 2014.  Missing or empty |title= (help)
  5. ^ Boric, Marino (31 July 2013). "SMA New Six-Cylinder Engine SR430 Debuted in U.S.". EAA AirVenture. Retrieved 8 December 2013. 
  • Gunston, Bill (1999). The Development of Piston Aero Engines, 2nd Edition. Sparkford, Somerset, England, UK: Patrick Stephens, Haynes Publishing. ISBN 0-7509-4478-1. 

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