Renard Type 100

The Renard Type 100 was a five-cylinder, radial piston engine, designed and produced in the late 1920s and early 1930s by Société Anonyme des Avions et Moteurs Renard (Renard) in Belgium.

Type 100
Type	5-cylinder air-cooled radial piston engine
National origin	Belgium
Manufacturer	Société Anonyme des Avions et Moteurs Renard
First run	1927

Design and development

The Type 100 was a conventional air-cooled radial engine with overhead valves, operated by push-rods and rockers. Accessories were mounted on the rear crankcase plate and the propeller was driven directly, with no reduction gearing.^[1]

Specifications (Type 100)

Data from Jane's all the World's Aircraft 1928^[1]

General characteristics

• Type: 5-cylinder aircooled radial piston engine
• Bore: 120 mm (4.7 in)
• Stroke: 140 mm (5.5 in)
• Displacement: 7.92 L (1.74 imp gal; 2.09 US gal)
• Diameter: 1,080 mm (43 in)
• dual ignition system

Components

• Valvetrain: 2 cam rings, pushrods and rockers operating one inlet and one exhaust valve per cylinder
• Fuel system: one carburetor supplying mixture to a crankcase plenum, then by radial pipes to inlet valves
• Oil system: dry sump pressure
• Cooling system: air-cooled
• Reduction gear: direct drive

Performance

• Power output: normal:75 kW (100 hp) at 1,400 rpm; Maximum:89 kW (120 hp) at 1,580 rpm
• Compression ratio: 5.2:1
• Specific fuel consumption: 0.301 kg/(kW hour) (0.495 lb/(hp hour))