• Advanced Bi-Metallic Liner. This process uses a double layer of plating material rather than one thick layer. This helps the metal to bond to the cylinder and is more durable. Also, the plating process is more consistent, resulting in a more precise fit between piston and sleeve for better compression, longer life..
• Side exhaust.
• E-3071 Power Box muffler with squared-off shape enables it to fit into a variety of cowls.
• 40K carburetor with rear angled needle valve for added safety.
• Ball bearing-supported crankshaft.

Plentiful power for sport and aerobatic aircraft! Ease, dependability and performance are what make engines popular — and they're also three good reasons why the 46AXII has become an instant flyer favorite. Lightweight and low maintenance, the 46AXII is as good a choice for easy sport flying as hard-charging aerobatics. An extension cable and an angled high-speed needle make fine-tuned performance and maximum personal safety easy to enjoy. * Simple, side-exhaust design. * Power Box muffler features a squared-off shape for easier fits in more cowls. * 40K carburetor has high- and low-speed needles, plus a mixture adjustment screw. Tighter tolerances between the piston and ABL create a tighter compression seal and improved power. * Dual ball bearing-supported crankshaft lowers friction and wear. * Head automatically centers and levels itself — and snugs down with just 4 screws. * Subtly tapered low-end needle eliminates surging at transition, ensuring smooth, controllable power across the rpm range. * Updated liner ports and a ball-milled inlet port minimize turbulence and promote better fuel/air mixing. * Minimizes "creep" and resets with seals on both needles and a ratchet spring on the high-speed needle. A rotor guide screw eliminates spring-related movement, too. * Includes a lock nut and a longer crankshaft with more thread length to ensure better prop nut engagement and greater pilot safety. * Includes glow plug, muffler, cable extension and warranty. * The ABL (Advanced Bi-Metallic Liner) includes one layer for better bonding, and another to reduce wear and extend life. * A needle-valve extension cable and rear-angled high-speed needle maximum pilot safety and convenience. * A generously sized chamber and larger sound baffle help the Power Box muffler significantly reduce exhaust noise without compromising power. Rotatable exhaust outlet provides effective, no-cost finish protection. Requires: * Glow fuel containing 5-20% nitromethane content and at least 16% lubricant content * Propeller (10.5x6, 11x6-8, 12x6-7 are recommended; use 10x6 for break-in) Specifications: * Displacement: 0.455 cu in (7.45 cc) * Bore: 0.886 in (22 mm) * Stroke: 0.772 in (19.6 mm) * RPM Range: 2000-17000 * Output: 1.63 hp @ 16000 rpm * Weight w/Muffler: 17.1 oz (486 g) * Engine: 13.3 oz (378 g) * Muffler: 3.8 oz (108 g) * Suggested Propellers: 10.5x6, 11x6, 11x7, 11x8, 12x6 & 12x7 * Break-in Propeller: 10 x 6