Renault 438

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

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.

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-blded, two-position variable-pitch Ratier propeller.

Performance

Power output: 130 kW (180 hp)

References

↑ "Hanriot H.183". Retrieved 13 March 2015.
↑ Renault 1907-1934:27 Ans d'Aviation (PDF) (in French). Billancourt: Usines Renault. 1934. pp. 31–41. Retrieved 12 October 2014.

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