Potez 4D
{{Short description|1930s French piston aircraft engine}}
| {{Infobox aircraft begin
|name = Potez 4D |image = Aircraft engine at Wings Over the Rockies Air and Space Museum (4283386906).jpg |caption = A Potez 4D on display at the Wings Over the Rockies Air and Space Museum }} {{Infobox aircraft engine |type=4-cyl. inverted air-cooled piston engine |manufacturer=Société des Avions et Moteurs Henry Potez |national origin=France |first run= |major applications= Nord 3202 |number built = |program cost = |unit cost = |developed from = |variants with their own articles = |developed into = }} |
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.
Variants
;4D-00:{{convert|170|hp|kW|0|abbr=on|order=flip}}
;4D-01:{{convert|160|hp|kW|0|abbr=on|order=flip}}
;4D-30:{{convert|240|hp|kW|0|abbr=on|order=flip}}
;4D-31:{{convert|220|hp|kW|0|abbr=on|order=flip}}
;4D-32:{{convert|240|hp|kW|0|abbr=on|order=flip}}
;4D-33:{{convert|160|hp|kW|0|abbr=on|order=flip}}
;4D-34:{{convert|260|hp|kW|0|abbr=on|order=flip}}
;4D-36:{{convert|260|hp|kW|0|abbr=on|order=flip}} 4D-34 with aerobatic oil system
Applications
Specifications (Potez 4-D 01)
{{pistonspecs|
|ref=Jane's All The World's Aircraft 1953-54.Bridgman 1953, p.328.
|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)
|diameter=
|width=510 mm (20.1 in)
|height=668.5 mm (26.3 in)
|weight=143 kg (314.6 lb)
|valvetrain=Two valves per cylinder with sodium cooled exhaust valves
|supercharger=
|turbocharger=
|fuelsystem=One Zenith carburettor
|fueltype=80 octane minimum
|oilsystem=Dry sump with one pressure and two scavenge pumps
|coolingsystem=air-cooled
|power=119 kW (160 hp) at 2,520 rpm (take-off), 97 kW (130 hp) at 2,360 rpm (Max cruise)
|specpower=
|compression=7:1
|fuelcon=
|specfuelcon=245 gram/hp/hour (take-off)
|oilcon=
|power/weight=0.83 kW/kg (0.51 hp/lb) (take-off)
|designer=
|reduction_gear=
|general_other=
|components_other=
|performance_other=
}}
See also
{{aircontent
|see also=
|related=
|lists=
|similar engines=
}}
Notes
{{reflist}}
References
{{Commons category|Potez 4D}}
- {{cite book |title=Jane's All The World's Aircraft 1953-54 |editor-last= Bridgman|editor-first=Leonard |year= 1953|publisher= Jane's|location= London}}
- {{cite book |title=Jane's All The World's Aircraft 1961–62 |editor-last= Bridgman|editor-first=Leonard |year= 1961|publisher= Sampson Low, Marston & Company, Ltd|location= London}}
- {{cite book |last= Gunston |first= Bill |title=World Encyclopedia of Aero Engines |year=1986 |publisher=Patrick Stephens |location= Wellingborough |pages=107 }}
{{Potez aeroengines}}