The DLE 35RA Petrol Engine is a compact, rear-exhaust powerhouse engineered for RC pilots who demand exceptional performance in mid-size aerobatic, scale, and sport aircraft. Its rear-exhaust layout makes it perfect for tight cowls, offering clean installation options and easy compatibility with tuned pipes. Delivering 4.5 horsepower at 8,500 RPM, the DLE 35RA provides outstanding torque, rapid throttle response, and the reliability that pilots worldwide expect from DLE engines.

Equipped with a rear-mounted pumper carburettor, the engine ensures smooth idle, consistent fuel delivery, and reliable running throughout the entire flight envelope. The electronic ignition system provides simple starting, reduced RF interference, and automatic timing adjustments to maintain peak performance. With CNC-machined components, high-quality sealed bearings, and a robust construction, the DLE 35RA offers long service life and dependable operation across hundreds of flights.

Whether you're upgrading from a glow engine or outfitting a new 30–40cc airframe, the DLE 35RA delivers outstanding value, precision engineering, and superb in-air performance.

Key Features

• Compact rear-exhaust design ideal for tight cowls and tuned pipe setups

• 4.5 hp @ 8,500 RPM for strong, responsive power

• Rear-mounted pumper carb for consistent fuel flow and smooth throttle

• Electronic ignition for easy starting and reliable timing

• CNC-machined parts for long-term strength and precision

• High-quality sealed bearings for durability and smoother operation

• Lightweight construction with excellent power-to-weight ratio

• Includes muffler, spark plug, standoffs, and mounting hardware

Perfect For

• 30–40cc aerobatic aircraft

• Scale warbirds with tight cowls

• Sport aircraft requiring a compact, powerful engine

• Pilots transitioning from glow to petrol engines

• Models using tuned pipes or compact exhaust systems

Product Summary

A powerful, compact 35cc rear-exhaust petrol engine delivering 4.5 hp with smooth throttle response, electronic ignition, and precision engineering. Ideal for 30–40cc RC aircraft.

Specifications

• Displacement: 35 cc (2.14 cu in)

• Bore: 1.50 in (38 mm)

• Stroke: 1.14 in (29 mm)

• Weight: 3.2 lb (1.45 kg)

• RPM Range: 1,700–8,500

• Output: 4.5 hp @ 8,500 RPM

Suggested Propellers:
18×8, 18×10, 20×8, 20×10

Suggested Break-in Prop:
18×8

Technical Data

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

• Compression Ratio: 8.0:1

• Fuel Mix: 30:1 petrol/2-stroke oil

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

Weight Breakdown:

• Engine: 45.6 oz (1,295 g)

• Muffler: 3.4 oz (95 g)

• Ignition Module: 5.3 oz (150 g)

Included in the Box

• DLE 35RA Petrol Engine

• Electronic ignition module

• Muffler

• Spark plug

• Gaskets, bolts & hardware

• Machined aluminium standoffs

• Throttle arm extension

• Instruction manual

Why Buy From ProBuild Aircraft Ltd

• ✅ Official UK DLE Stockist – 100% Genuine Engines

• ✅ Trusted by Top International RC Pilots Worldwide

• ✅ Fast, Reliable UK Shipping

• ✅ Expert Technical Support & Industry Knowledge

• ✅ Trusted by RC Pilots Since 1993