DLE-61 Single Cylinder Two Stroke Side Exhaust Gas Engine for Large-Scale RC Aircraft Condition: New Note: This 100% part is non-returnable and non-exchangeable. Please verify the correct part number before purchasing, instead of solely relying on the model.Specification:Performance: 6HP/7500 rpm Idle Speed: 1400?rmp/min Static Thrust: 15 kg/100 meters Altitude Static Thrust: 13 kg/1800 meters Altitude Recommended Propeller: 22 x10, 23 x8, 23 x10, 24 x8 Spark Plug Type: NGK CM6?Displacement: 60 cm3 Diameter 髑?Stroke: 47 mm髑?5 mm Compression Ratio: 10.5: 1 Lubrication Ratio: 30: 1 Weight of Main Engine: 1370 g Weight of Exhaust: 150 g Weight of Ignition: 140 g Ignition voltage: 4.8V-8.4VA pplications:Fit For Large-Scale RC Aircraft