The Lorraine 5P, also called the Lorraine 100CV, Lorraine 110CV and Lorraine 120CV, was a family of five-cylinder air-cooled radial engines designed and built in France by Lorraine-Dietrich during the 1920s and 1930s. Nominal engine powers were given as 100–110–120 hp (75–82–89 kW) at 1250 / 1400 / 1350 rpm (maximum continuous power), with maximum outputs of 108–125–150 hp (81–93–112 kW) at 1350 / 1650 / 1700 rpm.
| 5P | |
|---|---|
| Type | 5-cylinder air-cooled piston aero engine |
| National origin | France |
| Manufacturer | Lorraine-Dietrich |
Variants
- 5Pa
- also called the Lorraine 100CV, 8.59 litres (524.19 cu in) (125x140)
- 5Pb
- also called the Lorraine 110CV, 8.59 litres (524.19 cu in) (125x140)
- 5Pc
- also called the Lorraine 120CV, 9.3 litres (567.52 cu in) (130x140)
Applications
- Bloch 61
- Caudron C.221
- Dewoitine 481
- FBA 310 (5Pc)
- SAB DB-81
- Caproni Ca.97
Specifications (5Pc)
Data from Societe Generale Aeronautique[1]
General characteristics
- Type: 5-cylinder air-cooled radial piston engine, left hand rotation (facing the propeller)
- Bore: 130 mm (5.12 in)
- Stroke: 140 mm (5.51 in)
- Displacement: 9.3 L (567.52 cu in)
- Length: 970 mm (38.19 in)
- Diameter: 1,125 mm (44.29 in)
- Dry weight: 156.35 kg (344.7 lb)
Components
- Valvetrain: pushrod operated overhead valves, two per cylinder
- Oil system: pressure fed
- Cooling system: air-cooled
Performance
- Power output: 150 hp (110 kW) at 1700 rpm (maximum)
- 120 hp (89 kW) at 1350 rpm (maximum continuous)
- Compression ratio: 5.25
- Specific fuel consumption: 0.282 kg/(kW h) (0.463 lb/(hp h))
- Oil consumption: 0.0107 kg/(kW h) (0.0176 lb/(hp h))
References
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