(See SMA).

As a result of future and imminent replacement of AVGAS 100 LL fuel, first due to environmental regulations (because of the lead it uses), and later due to the lower demand placed on large companies, it is uneconomical to distill, store, and transport it.

-Logically, the substitute fuel should be Jet-A1 used in the turbines that are installed on major aircraft and that is easily found at all airports in the world.

-The solution to this problem that occurred in General Aviation, made up of a large number of piston engines, has been through Diesel engines that consume Kerosene.

-Several construction companies are working on this at the moment.

“Morane-Renault”

-Some time ago Socata, the manufacturer of Morane-Saulnier aircraft such as the "Rallye", saw the problem and together with the Renault-Sport section, they studied a Diesel engine that we show above.

-The engine's design is the same as that of the current Lycoming and Continental aviation engines.

-The dimensions are very similar, so that it can be located in the same aircraft as a "retrofit".

-The process of development and homologation has been very slow, and later a new company was established for the exploitation of the engine, it was SMA (see), or Societé de Motorisations Aeronautiques.

-Lately it has entered the orbit of the large French aviation engine company Snecma - SAFRAN.

From Appendix 7: There is some information that this aircraft manufacturer has made a 25 hp engine in 1912 that was installed on the Behueghe aircraft.