.61NX Evolution 2-Stroke Engine

The Evolution® .61NX will be replacing the popular .61NT engine. This redesigned engine incorporates a new combustion chamber design that increases the compression and power of the engine. Its improved combustion chamber design and higher compression ratio result in more power at the same weight as the original. Along with the internal engineering updates, the .61NX sports a sleek external case. With improved performance and looks, the .61NX will be a great option for modelers looking to power their .60-size airplanes.

• Redesigned cylinder head for even greater power
• Same ease of use and reliability
• True ABC piston and cylinder construction for more performance and longer engine life
• Includes optional SetRight™ needle valves for easy starting and great performance
• Rear needle valve provides safe, easy adjustments
• Dual ball bearing-supported crankshaft extends engine life and improves reliability

• Benchmark Prop: : 12 x 6 @ 12,000 rpm,12 x 6 @ 12,000 rpm
• Bore: : .94 in (23.9 g),.94 in (23.9 g)
• Carb Type: : Barrel with two needles
• Crank Type: : Ball Bearing
• Crankshaft Threads: : 5/16 x 24,5/16 x 24
• Cylinder Type: : ABC
• Cylinders: : Single
• Displacement: : .61 cu. in. (10.0 cc)
• Engine (Only) Weight: : 20.32 oz
• Mounting Dimensions: : 100 x 52 x 102mm (H X W X L)
• Muffler Type: : Cast
• Muffler Weight: : 5.12 oz (145 g)
• Prop Range: : 11 x 7–13 x 7
• RPM Range: : 2,000 to 17,000
• Recommended Fuel: : Glow
• Stroke: : .86 in (21.8 g),.86 in (21.8 g)
• Total Weight: : 25.44 oz (721 g),25.44 oz (721 g)