91NX Single Cylinder Glow Engine by Evolution Engines

91NX Single Cylinder Glow Engine by Evolution Engines Product Description Key Features Smaller size and lighter weight than typical .91 displacement engines to deliver a higher power-to-weight ratio Fits the same mounting pattern as the .61NX engine Smooth operation that's easy to tune Dual ball-bearing support for longer engine life Overview The Evolution® .91NX single-cylinder, 2-stroke glow engine is revolutionary for modelers who demand the most of their engines. This engine provides the performance of a .91-size engine in the case size of a .61-class engine, allowing you to put more power into smaller aircraft. The awesome power of the .91NX engines makes it possible to add a higher level of performance versatility to your .61-, .75- or .91-size airplanes, so that your 3D maneuvers have more punch and warbird strafing runs can reach speeds faster than you imagined possible. Evolution glow engines are engineered for hands-on modelers who believe there's no replacement for displacement. Their awesome power-to-weight ratios and smooth operation make any flying experience, be it 3D, sport or scale, the best it can be.