Franklin O-350
| O-350/6A-350 | |
|---|---|
| Type | Piston aircraft engine | 
| National origin | United States | 
| Manufacturer | Franklin Engine Company/WSK-PZL | 
| First run | 1964 | 
| Developed from | Franklin O-335 | 
The Franklin O-350 (company designation 6A-350) was an American air-cooled aircraft engine of the 1960s. The engine was of six-cylinder, horizontally-opposed layout and displaced 350 cu in (6 L). The power output was 235 hp (175 kW). The 6V-350 was a vertically mounted, fan cooled version for helicopters.
Variants
- 6A-350
 - 235 hp (175 kW) at 3,200 rpm
 
- 6A-350C1
 - 220 hp (164 kW) at 2,800 rpm
 - 6A-350C1R
 - 205 hp (153 kW) at 2,800 rpm
 - 6A-350C1L
 - 205 hp (153 kW) at 2,800 rpm
 - 6A-350C2
 - 215 hp (160 kW) at 2,800 rpm
 - The C2 is the same as C1, except for the induction system piping. When a Marvel Schebler MA4-5 carburetor is used on the 6A-350-C1 engine for improved acceleration the takeoff and max. continuous rating are 215 hp (160 kW) at 2,800 rpm.[1][2]
 
- 6AS-350
 - Turbocharged, 235 hp (175 kW) at 2,800 rpm.
 
- 6V-350
 - Vertically mounted, fan-cooled helicopter version, 235 hp (175 kW) at 3,200 rpm
 
Applications
- Bushcaddy L-164
 - Cessna 170
 - Cessna 172
 - Cessna 175
 - Hirth Acrostar
 - Jovair Sedan
 - Kaiser Magic
 - Maule M-4
 - Maule M-5
 - Procaer Picchio
 - PZL M-20 Mewa
 - Rallye Commodore
 - SIAI-Marchetti S.205
 - SIAI-Marchetti SH-4
 - Stinson 108
 - Van's RV-8
 - Zenith STOL CH 801
 
Specifications (6A-350)
Data from
General characteristics
- Type: 6-cylinder air-cooled horizontally opposed aircraft piston engine
 - Bore: 4.625 in (117.5 mm)
 - Stroke: 3.5 in (88.9 mm)
 - Displacement: 352.8 in³ (5.78 L)
 - Dry weight: 307 lb (139 kg)
 
Components
- Cooling system: Air-cooled
 
Performance
- Power output: 235 hp (175 kW) at 3,200 rpm
 
See also
Comparable engines
Related lists
References
- Notes
 
- Bibliography
 
- Gunston, Bill. (1986) World Encyclopedia of Aero Engines. Patrick Stephens: Wellingborough. p. 57