The DLE 120 Flat4 Gas Engine is a powerful 122cc four-cylinder petrol engine delivering an impressive 12HP at 7,500rpm. Designed for large-scale RC aircraft, this flat-four configuration provides smooth power delivery, strong torque, and reduced vibration — ideal for serious scale and aerobatic pilots.

Engineered for reliability and consistent performance, the DLE 120 Flat4 offers efficient fuel consumption with a 30:1 oil mix ratio and dependable electronic ignition operation between 4.8V–8.4V. With its robust internal design and precision machining, this engine is built for demanding flying conditions.

Whether you're powering a large warbird, scale aerobatic model, or competition aircraft, the DLE 120 delivers commanding performance with proven durability.

Key Features

• 122cc flat-four petrol engine

• 12HP output at 7,500rpm

• Smooth and balanced flat-four configuration

• Low idle speed of 1,200rpm for stable ground handling

• Compatible with large propellers including 27x10 (recommended)

• Reliable electronic ignition (4.8V–8.4V)

• Designed for large-scale RC aircraft

Perfect For

• Large-scale warbirds

• 35%+ aerobatic aircraft

• Scale competition models

• Serious RC petrol engine pilots

• Builders requiring smooth multi-cylinder performance

Product Summary

The DLE 120 Flat4 Gas Engine is a high-performance 122cc petrol engine delivering 12HP with smooth flat-four operation. Built for large-scale aircraft, it combines power, balance, and reliability making it a top choice for advanced RC pilots.

Specifications

Technical Data

• Performance: 12HP @ 7,500rpm

• Idle Speed: 1,200rpm

• Recommended Propeller: 27x10

• Alternative Propellers: 26x12, 28x10

• Spark Plug Type: NGK CM6

Engine Specifications

• Displacement: 122cm³

• Bore × Stroke: 36mm × 30mm

• Compression Ratio: 7.6:1

• Oil Mixture Ratio: 30:1

• Ignition Voltage: 4.8V–8.4V

• Net Weight: 2,960g

• Gross Weight: 3,765g

Why Buy from Probuild Aircraft?

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