Franklin O-225
American-made aircraft engine
From Wikipedia, the free encyclopedia
The Franklin O-225 (company designation 4A/4A4) was an American air-cooled aircraft engine that first ran in the mid-1940s. The engine was of four-cylinder, horizontally-opposed layout and displaced 225 cu in (4 L). The power output was between 75 hp (56 kW) and 125 hp (93 kW) depending on the version.
National originUnited States
First run1945
| O-225/4A/4A4 | |
|---|---|
| Type | Piston aircraft engine |
| National origin | United States |
| Manufacturer | Franklin Engine Company |
| First run | 1945 |
Variants
- 4A4-75
- 75 hp (56 kW) at 1,950 rpm
- 4A4-85
- 85 hp (63 kW) at 2,200 rpm
- 4A4-100
- 100 hp (75 kW) at 2,550 rpm
- 4A-225
- 100 hp (75 kW) at 2,800 rpm
Applications
- Cessna 160
- Bendix 51
- Bendix 52
- Bendix 55
- Dansaire Coupe
- Eshelman Winglet
- Government Workshops Triciclo-Experimental
Specifications (4A4-100)
Data from [citation needed]
General characteristics
- Type: 4-cylinder air-cooled horizontally opposed aircraft piston engine
- Bore: 4.5 in (114.3 mm)
- Stroke: 3.5 in (88.9 mm)
- Displacement: 222.7 in³ (3.65 L)
- Dry weight: 198 lb (90 kg)
Components
- Cooling system: Air-cooled
Performance
- Power output: 100 hp (75 kW) at 2,550 rpm
See also
References
- Notes
- Bibliography
- Gunston, Bill. (1986) World Encyclopedia of Aero Engines. Patrick Stephens: Wellingborough. p. 57