The DLE 61 is a powerful, lightweight and highly efficient 61cc petrol engine designed for large-scale RC aircraft. Delivering over 6 horsepower while weighing only 4 lb (1814 g), this engine offers an exceptional power-to-weight ratio that makes it ideal for demanding aerobatic, scale and sport flying.

DLE has incorporated several engineering improvements including enlarged crankshaft bearings, an enhanced piston/cylinder fit, and a precision CNC-machined construction. These updates ensure increased durability, smoother operation and excellent long-term reliability. The included aircraft-specific carburettor, electronic ignition, muffler, and standoffs give pilots everything needed for a clean, powerful installation straight out of the box.

With crisp throttle response, strong static thrust and dependable petrol-engine efficiency, the DLE 61 is one of the best-value 60cc class engines available today.

Key Features

• High power output: 6 hp @ 7,500 rpm

• Lightweight 61cc design for excellent power-to-weight ratio

• Precision CNC-machined components for strength and longevity

• Enlarged crankshaft bearings for increased durability

• Improved piston/cylinder contact for smoother running

• Two-petal reed valve for efficient fuel delivery

• Muffler included for optimal performance

• Complete installation package with standoffs, ignition module & spark plug

• Fast acceleration and reduced vibration thanks to lightweight piston

• Exceptional reliability at an unbeatable price point

Perfect For

• 50–70cc petrol aircraft

• Scale models, giant-scale aerobatics & IMAC

• 3D and sport flyers wanting strong torque & smooth throttle response

• Pilots upgrading from older 50–55cc engines

• Those seeking a powerful single-cylinder alternative to 60–70cc twins

Product Summary

A high-performance 61cc petrol aircraft engine featuring CNC precision, robust bearings, improved piston design and a strong 6 hp output. Supplied complete with ignition module, muffler, standoffs and accessories, the DLE 61 offers exceptional value and outstanding flight performance.

Specifications

General

• Displacement: 61.0 cc (3.7 cu in)

• Bore: 47 mm (1.85 in)

• Stroke: 35 mm (1.38 in)

• Output: 6 hp @ 7,500 rpm

Weights

• Total Weight: 1814 g (4.0 lb)

• Engine Weight: 1273 g (2.8 lb)

• Muffler: 110 g (3.9 oz)

• Ignition Module: 110 g (3.9 oz)

Fuel & Ignition

• Gas/Oil Mix: 30:1

• Ignition Battery: 4.8–8.4 V NiCd/NiMH, 6.6 V LiFe, or 2S LiPo

• Replacement Spark Plug: DLEG4026

Recommended Propellers

• 22 × 10

• 23 × 8

• 23 × 10

• 24 × 8

Static Thrust

• 20.9 lb (9.5 kg) @ 328 ft altitude

• 18.7 lb (8.5 kg) @ 1,800 ft altitude

Included

• Electronic ignition module

• Muffler

• Spark plug

• Engine standoffs

• Spiral wire wrap

• Connector safety clips

Requires

• Unleaded petrol

• 2-stroke oil

• Ignition battery

• Suitable propeller

Why Buy From ProBuild Aircraft Ltd

• ✅ Official UK DLE Stockist – 100% Genuine Engines

• ✅ Trusted by Top International RC Pilots

• ✅ Fast UK Shipping with Secure, Protective Packaging

• ✅ Expert Technical Support for Petrol Engines

• ✅ Trusted by Pilots Since 1993