Description

DLE85 2-Stroke 85cc Single Cylinder Gasoline Engine for Heavy-Lift UAVs & Large RC Aircraft

High-output 85cc single-cylinder gasoline engine delivering 8.5 HP and 21 kg of thrust—perfect for long-endurance UAVs, mapping drones, and large-scale RC aircraft.

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Product Description

The DLE85 is a high-performance 2-stroke 85cc single-cylinder gasoline engine built for professional UAVs and large-scale fixed-wing aircraft. With a maximum output of 8.5 HP at 9000 RPM, it offers exceptional power and reliability for missions requiring long endurance, high altitude operation, or heavy payload transport.

This engine produces 21 kg of thrust at 100 meters altitude and 18 kg even at 1800 meters, making it ideal for aerial logistics, agricultural spraying, and high-performance VTOL systems. Its advanced internal design includes a high compression ratio of 9.5:1, precision machining, and smooth throttle control. It supports large propellers up to 27 inches and runs on a standard NGK CM6 spark plug.

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Key Features

• Massive 85cc displacement for superior power delivery
• Delivers 8.5 HP @ 9000 RPM
• Thrust output: 21 kg @ 100m altitude, 18 kg @ 1800m
• Supports large propellers: 25×10, 26×9, 27×8
• Standard NGK CM6 spark plug and wide voltage ignition system
• High compression ratio of 9.5:1
• Ideal for UAVs carrying heavy payloads over long distances

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Specifications

Engine Type	Single Cylinder, 2-Stroke
Displacement	85 cm³
Bore x Stroke	52 mm × 40 mm
Compression Ratio	9.5 : 1
Output Power	8.5 HP @ 9000 RPM
Idle Speed	1500 RPM
Thrust	21 kg (100m), 18 kg (1800m)
Recommended Propellers	25×10, 26×9, 27×8
Spark Plug	NGK CM6
Lubrication Ratio	30:1
Weight (Engine)	1940 g
Weight (Exhaust)	250 g
Weight (Ignition)	140 g
Ignition Voltage	4.8V – 8.4V

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