Flygas builds the Gas 252 engine, for light aviation, with 70.7 CV (54 kW) with a consumption of 7.5 liters of gasoline per hour at cruising speed.

"Gas 252"

-It has SafeFly electronic ignition, but the most interesting thing is that it is turbocharged by a centrifugal compressor of the GAS brand itself.

-It has two horizontally-opposed cylinders. Its shape and size looks similar to the Citroën 2 CV engines.

From Appendix 9: The main text mentions the GAS 252, on the basis of the Citroën two-cylinder boxer engine that was used by the popular "2 CV" car.

-Lately, they offer an engine with a mechanical supercharger. It works colder than a turbocharger.

-The look of the supercharged engine is unbeatable, considering that the Citroën 2CV engine is robust and somewhat heavy for this feature.

"With supercharger and gear"

"Gear view"

-Also the rocker covers have a more robust appearance as they look like cast iron and machined.

-This supercharger kit is also offered for Rotax engines.

"Rotax modified by Flygas"

From Appendix 10: This brand has just announced a new engine with 4 horizontally-opposed cylinders with a new conception: the Flygas GAS-418HA.

“The new 4-cylinder engine”

-With gear and it seems that the two superchargers are mechanical.

-The Flygas GAS-252 model is based on the famous 2CV Citroën (rather 3CV or Visa).

This two-cylinder boxer has a displacement of 703 cc, double electronic ignition, and mechanical supercharger with belt drive (we can see it under the engine at the
front of the second photo.

From Appendix 11: We found a photograph of the 4-cylinder engine, the GAS418HA.

"Flygas GAS418HA"