The PRO engine series feature aerospace-technology ball bearings for supporting the crankshaft at high RPM while the Schnuerle-boost combustion porting delivers greater power & fuel economy. The Pro Series engines are equipped with twin ball bearings, twin needles & ABN-type piston & cylinder for years of trouble-free performance. All Pro Series engines deliver exceptional power-to-weight ratio & value, making them fantastic 2-stroke power plants for model airplanes.
Features: Side exhaust ABN construction: Aluminium piston with Nickel-plated brass cylinder liner Hypereutectic machined Al-Si ringed piston High-strength connecting rod with bushings pre-installed One-piece crankcase with squared-off cooling fins Dual ball bearing-supported crankshaft Vertical fins heat sink head for optimum air cooling 3- Chamber muffler included 2 Needle valves carburettor Swept back needle valve for added safety adjustment State of the art CNC machined components Redline R2 glow plug included Specifications: Displacement: 9.98 cc. / 0.609 cu. in. Bore: 23.5 mm. / 0.925 in. Stroke: 23.0 mm. / 0.906 in. Crankshaft: UNF 5/16 / 24 Practical RPM: 2, 000 ~ 16, 000 Output: 1.85 BHP / 15, 000 RPM Weight: 758 g. w/muffler / 26.75 oz. Product Name/ Code:PRO-61 TT9160 Manufacturer: Thunder Tiger