Description
A powerful and reliable 2021 DLE170 twin-cylinder 2-stroke gasoline engine built for large RC aircraft. Air-cooled with side exhaust, it delivers strong, smooth power (17.5 hp at 7,500 rpm) and excellent static thrust for heavy models. Easy to install and tune, it uses a common NGK CM6 spark plug and runs on a 30:1 fuel/oil mix. Ideal for pilots wanting high performance and durability in a compact 170cc package.
| Specification | Details |
|---|---|
| Performance | 17.5 hp @ 7,500 rpm |
| Idle speed | 1,100 rpm |
| Static thrust (≈100 m / sea level) | 35 kg |
| Static thrust (≈1,800 m) | 31.5 kg |
| Recommended propellers | 30×12, 32×10 |
| Spark plug | NGK CM6 |
| Displacement | 170 cm³ |
| Bore × Stroke | 52 mm × 40 mm |
| Compression ratio | 9.5:1 |
| Lubrication ratio | 30:1 (fuel : oil) |
| Weight — main engine | 3,620 g |
| Weight — exhaust | 470 g |
| Weight — ignition | 190 g |
| Ignition voltage | 4.8 V – 8.4 V |
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