News, facts, and comments on the coming revolution for piston-engine aircraft.
In 1998, one diesel engine flew on a converted airplane for the first time since 1945. Today, close to 4,000 singles and twins are flying. This is the beginning of a worldwide trend which will eventually allow a rebirth of the piston-engined aircraft, around new specs and new missions.
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News of February 25, 2011
SMA improved aero diesel 230HP certified by EASA.
15 Feb 2011. Loop Areo published this: The French SMA SR305-230E diesel engine has been certified by the European Aviation Safety Agency (EASA). The SR305-230E logged 2,500 hours of ground and flight testing for this certification program. Based on the results of these tests, SMA guarantees Time Between Overhauls (TBO) of 2,000 hours. Service entry is scheduled for early 2012.“SMA is delighted with the announcement by the European Aviation Safety Agency. This success represents a major step forwards for this engine program. Certification of the SR305-230E by Federal Aviation Administration (FAA) of the United States is expected in the coming weeks”, said Thierry Hurtes, chairman & CEO of SMA. Rated at 230 shaft horsepower, this engine was developed by SMA (Société de Motorisations Aéronautiques), a wholly-owned subsidiary of Snecma (Safran group). It is designed for single or twin-engine light aircraft. The SR305-230E diesel engine uses widely available Jet A fuel, which means that customers are no longer subject to the cost and availability restrictions of Avgas. The design of the SR305-230E also eliminates all lead emissions and ensures a low level of carbon-dioxide (CO2) emissions.
Comments: Our readers often know Luc Pelon, SMA's ex-CEO, from Sun n'Fun anf Oshkosh shows. He has been transferred to other functions within the Snecma Group, itself a subsidiary of the Safran Group, a large French conglomerate active in turbojets, avionics, aircraft subfunctions, weaponry, fluid power and systems. Thierry Hurtes's promotion does not indicate any change in the prevailing policy, witness this certification which was in the pipeline for some time. The SR305-230E is basically the same engine than the existing 230 who has been certified by FAA and EASA ans is flying on over 50 airplanes, in majority Cessna 182s, but has undergone some minor modifications allowing extending the TBO and the scope of certification, notably altitude.The 230E is interchangeable with the 230. The design, blueprints and test results of the 230 flew first in 1998. It has been licensed as a knowhow to Continental, which Teledyne has divested to the Chinese Aviation corporation AVIC. We can expect Continental to be pursuing its own program in perfecting this design and propose it as OEM to leading GA manufacturers, while preparing supplying it to Chinese-made airplanes. Our forecast regarding worldwide penetration of aero diesel technology remains the same: it is happening slowly, outside the US first, and only later in the US, where the Avgas issue may delay or on the contrary stimulate this mutation. When? It is too early to say.
posted at 7:03 AM
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Every month: news, facts, and comments on the coming revolution for piston-engines aircrafts between 130 and 400 HP: Retrofitting a diesel engine to run on Jetfuel or Kerosene, reduce Gallons/Hour by some 30%, eliminate ignition systems (magnetos, spark plugs) and their problems, eliminate mixture control, increase TBO to 2,400-3,000 hours, increase performance between 6,000 and 12,500 ft., and drastically reduce Operating Costs.
The letter is intended for piston engines aircraft owners, manufacturers, fleet operators and FBOs, re-manufacturers of engines for these aircrafts, manufacturers of engine components and ancillaries, and all professionals acting in decisions of engine exchange or refitting at TBO, in North and South America, Pacific Rim, African continent, and all parts of the world were Avgas, Mogas, Kerosene and Jetfuel are available.
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