Experience outstanding power, efficiency, and ease of use with the DLE-30 30cc 2-Stroke Petrol Engine, engineered to deliver exceptional performance in a compact glow-size footprint. Perfect for quarter-scale models, aerobatic aircraft, and sport flyers, the DLE-30 combines petrol economy with high-end flight performance, giving RC pilots a reliable and cost-effective upgrade from glow engines.

The lightweight design and high power-to-weight ratio produce an impressive 3.7 horsepower at 8,500 RPM, offering crisp throttle response and excellent mid-range pull. Thanks to the rear-mounted pumper carburettor, the engine provides smooth idling, consistent fuel delivery during aggressive manoeuvres, and straightforward installation in tight cowls.

DLE’s electronic ignition system ensures fast starts, stable running, and automatic timing adjustments, allowing the engine to deliver peak power across its full RPM range. With CNC-machined components, quality bearings, and robust construction, the DLE-30 is built for long-term reliability and outstanding in-flight performance.

Everything you need is included, muffler, standoffs, ignition, spark plug, hardware, and mounting template, so you can get airborne quickly with confidence.

Key Features

• Compact 30.5cc petrol engine with glow-size mounting footprint

• Electronic ignition for fast, reliable starts and optimal timing

• Rear-mounted pumper carb for smooth idle and consistent fuel delivery

• Lightweight design with excellent power-to-weight ratio

• Produces 3.7 hp @ 8,500 RPM

• Ideal for 1/4-scale, sport, and aerobatic aircraft

• Includes muffler, ignition, spark plug, standoffs & mounting template

• Simple installation in tight cowls

Perfect For

• Quarter-scale aircraft

• Aerobatic sport models

• Pilots upgrading from glow to petrol

• Compact aircraft needing glow-size mounting with petrol efficiency

• Models requiring smooth idle and reliable mid-range pull

Product Summary

A powerful and compact 30.5cc 2-stroke petrol engine delivering 3.7 horsepower with electronic ignition, pumper carb, and full installation accessory pack. Perfect for 1/4-scale RC aircraft.

Specifications

• Displacement: 30.5 cc (1.861 cu in)

• Bore: 1.42 in (36 mm)

• Stroke: 1.18 in (30 mm)

• RPM Range: 1,600–8,500

• Output: 3.7 hp @ 8,500 RPM

• Compression Ratio: 7.6:1

• Fuel Mix: 30:1 petrol / 2-stroke oil

• Ignition Battery: 4.8–6.0V NiCd/NiMH, 6.6V LiFe or 7.4V LiPo (regulator required for LiFe/LiPo)

• Replacement Spark Plug: NGK CM6 (DLEG5510) or equivalent

Weight Breakdown

• Engine: 910 g (32.1 oz)

• Muffler: 60 g (2.1 oz)

• Ignition Module: 120 g (4.2 oz)

• Total Weight: 1.10 kg (2.4 lb)

Included in the Box

• DLE-30 Petrol Engine

• Electronic ignition module

• Muffler

• NGK-type spark plug

• Machined aluminium standoffs

• Throttle arm extension

• Gasket set

• Hardware & bolts

• Mounting template

Recommended Propellers

• Break-in: 18×8

• General use: 18×10, 19×8, 20×8

Why Buy From ProBuild Aircraft Ltd

• ✅ Official UK DLE Dealer – 100% Genuine Engines

• ✅ Expert support from long-established RC specialists

• ✅ Fast UK shipping & trusted service

• ✅ Used by top RC pilots worldwide

• ✅ Since 1993 – Proven reliability & industry knowledge