Franklin O-235
| O-235/4A-235/Sport 4 | |
|---|---|
| Type | Piston aircraft engine | 
| National origin | United States | 
| Manufacturer | Franklin Engine Company/WSK-PZL | 
| First run | 1964 | 
The Franklin O-235 (company designation 4A-235 and Sport 4) is an American air-cooled aircraft engine that first ran in the mid-1960s. The engine is of four-cylinder, horizontally-opposed layout and displaced 235 cu in (4 L). The power output is nominally 125 hp (93 kW).
Variants
- 4A-235
 - 130 hp (97 kW) at 2,800 rpm
 
- Sport 4
 - 125 hp (93 kW) at 2,800 rpm
 
Applications
- Duruble Edelweiss
 - Hollman Sportster
 - MacFam Cavalier
 - Practavia Sprite
 - PZL-110 Koliber
 - Rallye-Club
 - Skystar Kitfox
 - Stewart Foo Fighter
 
Specifications (4A4-235)
Data from
General characteristics
- Type: 4-cylinder air-cooled horizontally opposed aircraft piston engine
 - Bore: 4.625 in (117.5 mm)
 - Stroke: 3.5 in (88.9 mm)
 - Displacement: 235.2 in³ (3.85 L)
 - Dry weight: 223 lb (101 kg)
 
Components
- Cooling system: Air-cooled
 
Performance
- Power output: 130 hp (75 kW) at 2,800 rpm
 
See also
Comparable engines
Related lists
References
- Notes
 
- Bibliography
 
- Gunston, Bill. (1986) World Encyclopedia of Aero Engines. Patrick Stephens: Wellingborough. p. 57