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Argus As 411

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Argus As 411

The Argus 411 was a twelve-cylinder, air-cooled, inverted-V aircraft engine developed by Argus Motoren in Germany during World War II.


Design and development

The As 411 was a refined and more powerful version of the Argus As 410. Most 411 production was undertaken by Renault in occupied Paris, these engines were used to power the Siebel Si 204 and the post war Dassault MD 315 Flamant. It developed 600 PS (592 hp, 441 kW) at 3,300 rpm

Following the end of World War II, Renault continued to manufacture the engine as the Renault 12S. After merging the French aircraft engine manufacturers into SNECMA in 1945, production continued under the new designation SNECMA 12S.


As 411
A refined and more powerful version of the Argus As 410.
Renault 12S
Production of the As 411 after World War II in France.
(a.k.a. SNECMA Renault 12T) Designation change on the formation of SNECMA.
(a.k.a. SNECMA Renault 12T) Refined version of the 12S with new pistons, cylinders and revised induction system.


  • Arado Ar 96
  • Breguet 892 Mercure (4 × 12S)
  • Dassault MD 315 Flamant
  • Focke-Wulf Fw 189
  • Pilatus P-2
  • Siebel Si 204
  • SNCAC NC.2001
  • Sud Ouest S.O.93
  • General characteristics

  • Type: 12-cylinder inverted 60-degree Vee
  • Dry weight: 385 kg (849 lb)
  • Components

  • Cooling system: Air-cooled
  • Performance

  • Power output: 600 PS (592 hp, 441 kW) at 3,300 rpm
  • Compression ratio: 6.4:1
  • References

    Argus As 411 Wikipedia