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SOLO® Aircraft Engine 2489
Description of construction
- Twin-cylinder inline two-stroke engine
- Liquid cooling with belt driven waterpump
- Lubrication by fuel-oil mixture
- Two float carburetors with additional fuel pump
- Electronic high-voltage ignition
- Intake control with reed valve into the crankcase
- Crankshaft layout for belt transmission
- Electric starter 12 V, 400 W
- AC generator
Operational data and limitations
| Take-off-speed, power | 30 kW (40 HP) at 5,900 1/min. |
| Max cont. speed, power | 30 kW (40 HP) at 5,900 1/min. |
| Recommended rpm | 6,500 1/min. |
| Idle rpm | 2,300 1/min. |
| Cylinder head temp. | 115 °C (240°F) measured in the cylinder - head |
| Fuel consumption | Max. continous power approx. 4.49 US gal./hr. (17 l/hr.) 75% continuous power approx 3.17 US gal/hr. (12 l/hr.) |
| Engine Displacement | 489 ccm, cyl. bore 72 mm, stroke 60 mm |
| Compression Ratio | 10 : 1 |
| Ignition Unit | Electronic high-voltage ignition (Selettra) |
| Ignition Plugs | WSR 6 F |
| Carburetor | BING carburetor type 54 |
| Direction of rotation | Clockwise, seen in direction of flight |
| Fuel | 2-Stroke mix, AVGAS 100LL, premium gas (min. 95 ROZ) |
| Mixture | Mixture ratio 1 : 50 , 2-stroke Castrol mineral oil or synthetic oil, or other oils with specification according to JASO FC oder FD |
| Dry Weight | 30.0 kg |
| Generator | 12 V, 70 W |
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