DLE 120T4 Four Cylinder Gasoline Engine

A: The DLE 120T4 is a four-cylinder two-stroke gasoline aeromodel engine designed for giant-scale RC aircraft, large sport aircraft, scale models, aerobatic aircraft and professional aeromodelling applications.

A: The listed import price is CA$2,520 for the DLE 120T4 Four Cylinder Gasoline Engine Standard Package. Final pricing may vary if installation support, propeller matching, workshop support or UAV prototype integration assistance is added.

A: The DLE 120T4 is a compact four-cylinder aeromodel gasoline engine designed to deliver smooth running, reliable thrust and low vibration for high-end giant-scale RC aircraft.

A: The listed performance rating is 12HP at 7500 RPM.

A: The listed idle speed is approximately 1200 RPM. Stable idle depends on correct fuel mix, ignition setup, carburetor tuning and engine condition.

A: The listed static thrust is 26.5kg at 100m altitude. Actual thrust depends on propeller, air density, tuning, fuel mix and aircraft setup.

A: The listed exhaust amount is 122 ccm.

A: The listed bore and stroke are 36mm × 30mm.

A: The listed compression ratio is 7.1:1.

A: The listed lubrication ratio is 30:1. Fuel/oil mixing should follow engine manual guidance and proper break-in procedure.

A: The DLE 120T4 runs on clean 92 unleaded gasoline and above, mixed with suitable 2-stroke engine oil at a 30:1 reference ratio.

A: The listed spark plug type is NGK CM6.

A: The listed ignition voltage range is 4.8V–8.4V. Select the ignition battery and regulator according to the ignition module requirement.

A: Recommended propellers include 27x10, 26x12 and 28x10. Final propeller selection should match aircraft size, weight, flight style, altitude and safe RPM limits.

A: A propeller should be treated as required separately unless specifically included in the final quotation. Confirm final package contents before order.

A: The listed main engine weight is 2960g.

A: The listed exhaust weight is 500g and the listed ignition weight is 140g.

A: It is suitable for giant-scale RC airplanes, large sport aircraft, scale aircraft and aerobatic aircraft designed for a 120cc-class multi-cylinder gasoline engine.

A: This engine is best suited for experienced RC pilots or beginners working under expert supervision. Large four-cylinder gasoline engines require careful installation, fuel handling, ignition setup, tuning and propeller safety.

A: Yes, it may be used in petrol-powered fixed-wing UAV prototype projects if the airframe, vibration isolation, fuel system, propeller, cooling, ignition and safety procedures are professionally engineered.

A: Typical required items include suitable propeller, fuel tank, fuel tubing, fuel filter, ignition battery, switch harness, throttle linkage, engine mount, starter equipment, field tools and correct gasoline/oil mix.

A: Propeller balancing helps reduce vibration, protects the engine and airframe, improves reliability and supports smoother operation during flight.

A: Maintenance should include checking propeller bolts, engine mounting bolts, exhaust bolts, spark plug, ignition wiring, fuel lines, fuel filter, throttle linkage, tuning status and general engine cleanliness.

A: Operators should follow propeller safety, fuel safety, fire safety, secure mounting, safe starting procedure, safe tuning practice and field operation rules. Never stand in the propeller arc during operation.

A: A four-cylinder RC gasoline engine provides smoother operation, lower vibration and refined large-airframe performance compared with many single-cylinder engine layouts.

A: Warranty support generally covers manufacturing defects under approved use and normal operating conditions. Damage from incorrect fuel mix, poor tuning, overheating, propeller strike, crash impact, dirt ingestion, water exposure or unauthorized modification may not be covered.