Potez 4E
The Potez 4E is a French air-cooled flat-four piston engine of the 1960s. It was unveiled at the 1959 Paris Air Show,[1] entered production in 1960 and is rated at 78 kW (105 hp).[2] It remained in production until 1965 when Potez abandoned production of aero-engines.[3][4]
| Potez 4E | |
|---|---|
| Type | Air-cooled flat-four engine |
| National origin | France |
| Manufacturer | Potez |
| Major applications | SAN Jodel D.150 Mascaret |
| Produced | 1960–1965 |
Applications
Specifications (Potez 4E-20)
General characteristics
- Type: direct drive right-hand tractor air-cooled flat-four piston engine
- Bore: 110 mm (4.33 in)
- Stroke: 90 mm (3.54 in)
- Displacement: 3.42 l (208.70 cu in)
- Length: 782 mm (30.79 in)
- Width: 778 mm (30.63 in)
- Height: 605 mm (23.82 in)
- Dry weight: 92 kg (202.83 lb) dry un-equipped, 103 kg (227.08 lb) equipped
Components
- Valvetrain: Two valves per cylinder with dual springs operated by rockers and pushrods from a gear driven camshaft.
- Fuel system: One NAS 42 Zenith carburettor
- Fuel type: 100/130 octane
- Oil system: Pressure feed to bearings and moving parts at 300–480 kPa (43–70 psi), oil grade SAE 50 and 40
- Cooling system: Air-cooled
- Reduction gear: Direct drive
- 12 Volt Ducellier electric starter motor, 12 Volt 250 Watt belt driven generator
Performance
- Power output: 78.30 kW (105 hp) at 2,750 rpm for take-off, 61.15 kW (82 hp) at 2,600 rpm at 914.40 m (3,000 ft) cruising
- Specific fuel consumption: 0.298 kg/kW/hr (0.49 lb/hp/hr) at normal cruising power
- Oil consumption: 0.18 kg (0.40 lb)/hour
- Power-to-weight ratio: 1.68 kW/kg (1.02 hp/lb)
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References
- "The 23rd Paris Show" Flight 14 August 1959, p.20.
- Flight Aero Engines 1960, p.375.
- Taylor 1965, p.456.
- Flight International 7 January 1965, p.24.
- Taylor, John W.R. FRHistS. ARAeS (1962). Jane's All the World's Aircraft 1962-63. London: Sampson, Low, Marston & Co Ltd.
- Taylor, John W.R. FRHistS. ARAeS (1962). Jane's All the World's Aircraft 1962-63. London: Sampson, Low, Marston & Co Ltd.
- Aero Engines 1960". Flight, 18 March 1960, pp. 367–387.
- Aero Engines: A "Flight International" Survey". Flight International, 7 January 1965, pp. 19–34.
- Taylor, John W. R. Jane's All The World's Aircraft 1965-66. London: Samson Low, Marston, 1965.
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