Description

DLE20RA 2-Stroke 20cc Rear Exhaust Gasoline Engine for UAVs & RC Aircraft

Compact and powerful 20cc gasoline engine with rear exhaust layout, ideal for UAVs and RC aircraft where space and airflow are critical. Delivers 2.5 HP with reliable ignition and smooth throttle response.

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Product Description

The DLE20RA is a rear exhaust 2-stroke gasoline engine engineered for drones and RC planes requiring powerful performance in confined spaces. Its rear-mounted exhaust design simplifies integration into tight fuselages, while the high-precision single-cylinder structure ensures low vibration and high durability.

With an output of 2.5 HP at 9000 RPM, the DLE20RA provides strong and consistent thrust. Its optimized combustion and 10.5:1 compression ratio enhance efficiency and reliability, making it a top choice for small to medium fixed-wing UAVs, aerial photography drones, and long-range RC aircraft.

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Key Features

• Rear exhaust layout for easy fuselage integration
• 2.5 HP output at 9000 RPM
• Lightweight design – engine weighs only 660 g
• Compatible with 14×10 to 17×6 propellers
• Pulls 6.3 kg thrust at 100m altitude, 5.6 kg at 1800m
• Ignition system supports wide voltage input (4.8V–8.4V)
• Uses standard NGK CM6 spark plug

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Specifications

Engine Type	Single Cylinder, 2-Stroke
Displacement	20 cm³
Bore x Stroke	32 mm × 25 mm
Compression Ratio	10.5 : 1
Output Power	2.5 HP @ 9000 RPM
Idle Speed	1750 RPM
Thrust	6.3 kg (100m altitude), 5.6 kg (1800m altitude)
Recommended Propeller	14×10, 15×8, 16×6, 17×6
Spark Plug	NGK CM6
Lubrication Ratio	30:1
Weight (Engine)	660 g
Weight (Exhaust)	80 g
Weight (Ignition)	140 g
Ignition Voltage	4.8V – 8.4V

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