The Potez 4D was a four-cylinder, inverted inline aircraft engine. It was first built shortly before World War II, but did not enter full production until 1949. Like the other D-series engines, the cylinders had a bore of 125 mm (4.9 in) and a stroke of 120 mm (4.7 in). Power for different models was in the 100 kW-190 kW (140 hp-260 hp) range.

Potez 4D
A Potez 4D on display at the Wings Over the Rockies Air and Space Museum
Type 4-cyl. inverted air-cooled piston engine
National origin France
Manufacturer Société des Avions et Moteurs Henry Potez
Major applications Nord 3202

Variants

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4D-00
127 kW (170 hp)
4D-01
119 kW (160 hp)
4D-30
179 kW (240 hp)
4D-31
164 kW (220 hp)
4D-32
179 kW (240 hp)
4D-33
119 kW (160 hp)
4D-34
194 kW (260 hp)
4D-36
194 kW (260 hp) 4D-34 with aerobatic oil system

Applications

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Specifications (Potez 4-D 01)

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Data from Jane's All The World's Aircraft 1953-54.[1]

General characteristics

  • Type: Four-cylinder air-cooled inverted inline engine
  • Bore: 125 mm (4.92 in)
  • Stroke: 120 mm (4.72 in)
  • Displacement: 5.85 L (352 in³)
  • Length: 1,207.5 mm (47.5 in)
  • Width: 510 mm (20.1 in)
  • Height: 668.5 mm (26.3 in)
  • Dry weight: 143 kg (314.6 lb)

Components

  • Valvetrain: Two valves per cylinder with sodium cooled exhaust valves
  • Fuel system: One Zenith carburettor
  • Fuel type: 80 octane minimum
  • Oil system: Dry sump with one pressure and two scavenge pumps
  • Cooling system: air-cooled

Performance

See also

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Comparable engines

Related lists

Notes

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  1. ^ Bridgman 1953, p.328.

References

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  • Bridgman, Leonard, ed. (1953). Jane's All The World's Aircraft 1953-54. London: Jane's.
  • Bridgman, Leonard, ed. (1961). Jane's All The World's Aircraft 1961–62. London: Sampson Low, Marston & Company, Ltd.
  • Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 107.