Continental IO-346
The Continental IO-346 engine is a fuel-injected four-cylinder aircraft engine that was developed especially for the Beechcraft Musketeer Custom III by Continental Motors. It was produced for that aircraft between 1965 and 1969.[1]
| IO-346 | |
|---|---|
| Type | Piston aero-engine |
| National origin | United States |
| Manufacturer | Teledyne Continental Motors |
| First run | 1962 |
| Major applications | Beechcraft Musketeer |
| Produced | 1965-1969 |
| Developed into | Continental IO-520 |
Design and development
There is no carbureted version of the engine, which would have been designated O-346 and therefore the base model is the IO-346.[1][2]
The IO-346 was designed to run on 91-98 avgas. The engine has a dry weight of 269¾ lb or 297 lb including the generator and starter. The ignition system consists of dual magnetos, one Scintilla S4RN-201 and one S4RN-205 or, alternatively, two Slick Electro 449 magnetos.[1][2]
Variants
Applications
1965 model Beechcraft A23 Musketeer equipped with the IO-346 engine
- Beechcraft Musketeer[1]
- Gadfly E.S 102[1]
- Piel Emeraude[1]
- Stampe SV-4D[1]
Specifications (IO-346)
Reference: Engines for Homebuilt Aircraft & Ultralights[1]
General characteristics
- Type: 4-cylinder air-cooled horizontally opposed aircraft piston engine
- Bore: 5.25 in (133 mm)
- Stroke: 4.00 in (102 mm)
- Displacement: 346 in³ (5.68 L)
- Length: 30 in (762 mm)
- Width: 33.38 in (848 mm)
- Height: 22.4 in (569 mm)
- Dry weight: 297 lb dry, with starter and generator (135 kg)
Components
- Valvetrain: One intake and one exhaust valve per cylinder
- Fuel system: CMC fuel injection
- Fuel type: 91/98 octane avgas
- Cooling system: Air-cooled
Performance
- Power output: 165 hp (121 kW) at 2,700 rpm
- Specific power: 0.47 hp/in³ (21.2 kW/L)
- Compression ratio: 7.5:1
- Power-to-weight ratio: 0.56 hp/lb (0.90 kW/kg)
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See also
References
- Christy, Joe: Engines for Homebuilt Aircraft & Ultralights, pages 63. TAB Books, 1983. ISBN 0-8306-2347-7
- Federal Aviation Administration (November 1973). "TYPE CERTIFICATE DATA SHEET NO. E3CE" (PDF). Archived from the original (PDF) on 2011-06-08. Retrieved 2008-12-14.
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