Renault 438

The Renault 438, a.k.a. Coupe Deutsch 1934 was a specially developed racing engine, designed and built in France, for use in aircraft competing in the Coupe Deutsch de la Meurthe aircraft races.

438
Type 6-cylinder inverted in-line piston engine
National origin France
Manufacturer Renault
Developed from Renault 6P

Design and development

Following closely the developments with the 6P and 6Q, the 438 married a turbo-supercharger with narrow bore high compression cylinders and the crankcase design of the 6Q

Operational history

Only two aircraft types, both one-offs, are known to have used the 438 engine. One was F-AMVA, a Caudron C.430/1 Rafale, for racing and record attempts, particularly the Coupe Deutsch de la Meurthe races, the other Hanriot H.183 F-AOJG, an aerobatic version of the Hanriot H.180.

Applications

Specifications (438)

Data from Renault 1907-1934:27 Ans d'Aviation[2]

General characteristics

  • Type: Turbo-supercharged 6-cylinder inverted , air-cooled in-line piston engine
  • Bore: 109.75 mm (4.32 in)
  • Stroke: 140 mm (5.51 in)
  • Displacement: 7.95 l (485.14 cu in)

Components

  • Valvetrain: push-rod operated inlet and exhaust poppet valves
  • Turbocharger: Renault centrifugal compressor running at 26,000 rpm
  • Fuel system: 1x Stromberg carburretor
  • Cooling system: air-cooled
  • Two-bladed, two-position variable-pitch Ratier propeller.

Performance

  • Power output: 130 kW (180 hp)

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References
  1. "Hanriot H.183". Retrieved 13 March 2015.
  2. Renault 1907-1934:27 Ans d'Aviation (PDF) (in French). Billancourt: Usines Renault. 1934. pp. 31–41. Archived from the original (PDF) on 17 October 2014. Retrieved 12 October 2014.
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