Designed to achieve the easiest operation & max performance over & over, the new PRO-21BX-R delivers an awesome raw power & durability! The new webbed reinforced compact crankcase is made for added wearing resistance & provides effective heat dispersion for longer runs. All PRO series engines are manufactured by automated computer-controlled machinery, using the highest quality materials & state-of-the-art CNC manufacturing techniques to deliver a power plant that looks & performs better. Precision mixture control carburettor makes adjustments simple; the crankshaft is lightened, & balanced to achieve a smoother & more efficient fuel mixture. The new 21 engine fits in the same mounting as the original. 21/.28 engines, with no additional weight
- but delivers greater output & higher practical rpm. The Pro-21BX-R is equipped with a built-in recoil starters ("X" type) for easy & quick start. Features Rear exhaust ABC construction: Aluminium piston with Cr-plated brass cylinder liner Hypereutectic machined Al-Si ringed piston High-strength connecting rod with bushings pre-installed SG crankshaft One-piece crankcase with squared-off cooling fins Dual ball bearing-supported crankshaft Machined over-sized heat sink head Built-in pull starting back plate Three-needle valves slide valve carburettor State-of-the-art CNC machined components Specifications: Displacement (c.c. / cu.in.) 3.49 c.c. /. 213 cu.in. Bore (mm / in.) 16.26 mm / 0.640 in. Stroke (mm / in.) 16.8 mm / 0.661 in. Practical R.P.M. (R.P.M.) 3, 000 ~ 36, 000 rpm Output (BHP/RPM) 2.15 BHP / 30, 000 RPM Weight (g/oz) 460 g / 16.23 oz Product Name/ Code:PRO -21BX-R TT9475 Manufacturer: Thunder Tiger
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Thunder Tiger’s PRO series engines are equipped with dual-ball bearings, Schnuerle porting, piston & cylinder & mixture control carburettor. Designed to achieve the easiest operation & max performance again & again. The PRO. 21/.28 Series have the most raw power & durability simultaneously! Of course, the new webbed reinforced compact crankcase is made for added wearing resistance & provides effective heat dispersion to meet the demands of long term usage. The PRO series are manufactured by automated computer-controlled machinery, using the highest quality materials. State-of-the-art CNC manufacturing techniques produce not only high performance & reliability but a product that looks & performs better. Precision mixture control carburettor makes adjustments simple. The crankshaft is lightened, & balanced to get a fuel mixture more smoothly. The. 21/.28 engines fit in the same mounting space as the original. 21/.28 engines, with no additional weight
- but delivers greater output & higher practical rpm.
Features: Dual starting system; recoil starter, rotor starter Top grade CNC equipment, state-of-the-art technology are used enhanced mixture control carburettor; which makes adjustments simpler enhanced quality; ISO9001 Certified which guarantees the maximum power & performance Smooth running & long lasting power plant with front & rear ball bearings Dual-ball bearings, Schnuerle porting, piston & cylinder & mixture control carburettor Same mounting space as the original. 28 engines Crankshaft is lightened, & balanced to get a fuel mixture more smoothly Designed for both beginners & experienced modellers Specifications: Displacement: 4.63 cc. / 0.282 cu. in. Bore: 18.30 mm. / 0.720 in. Stroke: 17.6 mm. / 0.693 in. Practical RPM: 3, 000 ~ 35, 000 Output: 2.40 BHP / 30, 000 RPM Weight: 490 g. wo/muffler / 17.28 oz. Product Name/ Code:PRO -28BD-RManufacturer: Thunder Tiger

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Thunder Tiger’s PRO series engines are equipped with dual-ball bearings, Schnuerle porting, piston & cylinder & mixture control carburettor. Designed to achieve the easiest operation & max performance again & again. The PRO. 21/.28 Series have the most raw power & durability simultaneously! Of course, the new webbed reinforced compact crankcase is made for added wearing resistance & provides effective heat dispersion to meet the demands of long term usage. The PRO series are manufactured by automated computer-controlled machinery, using the highest quality materials. State-of-the-art CNC manufacturing techniques produce not only high performance & reliability but a product that looks & performs better. Precision mixture control carburettor makes adjustments simple. The crankshaft is lightened, & balanced to get a fuel mixture more smoothly. The. 21/.28 engines fit in the same mounting space as the original. 21/.28 engines, with no additional weight
- but delivers greater output & higher practical rpm.
Features: Build-in rotor starter Top grade CNC equipment, state-of-the-art technology are used enhanced mixture control carburettor; which makes adjustments simpler enhanced quality; ISO9001 Certified which guarantees the maximum power & performance Smooth running & long lasting power plant with front & rear ball bearings Dual-ball bearings, Schnuerle porting, piston & cylinder & mixture control carburettor Same mounting space as the original. 28 engines Crankshaft is lightened, & balanced to get a fuel mixture more smoothly Designed for both beginners & experienced modellers Specification: Displacement: 4.63 cc. / 0.282 cu. in. Bore: 18.30 mm. / 0.720 in. Stroke: 17.6 mm. / 0.693 in. Practical RPM: 3, 000 ~ 35, 000 Output: 2.40 BHP / 30, 000 RPM Weight: 460 g. wo/muffler / 16.23 oz. Product Name/ Code: PRo -28BX-R TT9477 Manufacturer: Thunder Tiger

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Thunder Tiger is proud to introduce the all-new PRO-46M Two-Stroke marine engine. The anodized water cooling cylinder head helps to make the engine run more stable which in turn enables quick & powerful acceleration. An extra long, SG type crankshaft is fitted so can be adapted for multiple boats, this engine has been especially designed for radio control model sport racing boats.
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.SG crankshaft for clutch system. Water-Cooled Cylinder Head. Dual ball bearing-supported crankshaft.2 Needle valves carburettor. W/9mm carb bore. Vertical mounted main needle valve Redline R2 glow plug included. Specifications: Displacement (cc/ cu.in.)7.47/0.455 Bore: 21.8mm Stoke: 20.0mm Practical RPM4, 500~24, 000 Output (BHP/RPM)2.46/23, 000 Weight, (g/oz) w/o Muffler: 350g Manufacturer: Thunder Tiger Model / Part No: (TT954)PRO -46M Two Stroke Marine Engine
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Thunder Tiger’s PRO series engines are equipped with dual-ball bearings, Schnuerle porting, piston & cylinder & mixture control carburettor. Designed to achieve the easiest operation & max performance again & again. The PRO-50BX (R) Series have the most raw power & durability simultaneously! Of course, the new webbed reinforced compact crankcase is made for added wearing resistance & provides effective heat dispersion to meet the demands of long term usage. The PRO series are manufactured by automated computer-controlled machinery, using the highest quality materials. State-of-the-art CNC manufacturing techniques produce not only high performance & reliability but a product that looks & performs better. Precision mixture control carburettor makes adjustments simple. The crankshaft is lightened, & balanced to get a fuel mixture more smoothly.
Features: Built-in rotor starter Top grade CNC equipment, state-of-the-art technology are used enhanced mixture control carburettor; which makes adjustments simpler ISO9001 Certified which guarantees the maximum power & performance Smooth running & long lasting power plant with front & rear ball bearings Dual-ball bearings, Schnuerle porting, piston & cylinder & mixture control carburettor Crankshaft is lightened, & balanced to get a fuel mixture more smoothly Designed for both beginners & experienced modellers Specifications: Displacement: 8.19 cc. / 0.500 cu. in. Bore: 22.5 mm. / 0.886 in. Stroke: 20.6 mm. / 0.811 in. Practical RPM: 2, 000 ~ 30, 000 Output: 1.80 BHP / 16, 000 RPM Weight: 465 g. wo/muffler / 16.41 oz. Product Name/ Code: PRO -50BX TT9445 Manufacturer: Thunder Tiger
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The PRO series helicopter ring-type engines are equipped with dual ball-bearings, Schnuerle porting, one ring-type piston / cylinder assembly & two-needle automatic mixture control carburettor. All Thunder Tiger engines have been designed to combine high performance with easy handling & maintenance using CAD computer technology, resulting in consistent high quality & reliability. Subjected to rigorous quality control check ensures that it will provide years of trouble free use. The PRO-Heli series are manufactured by automated computer-controlled machinery, resulting in a product that looks & performs better. One full-throttle "blast off" will convince you of the awesome power-to-weight-ratio created from the PRO-70H (R), engine is good for all kinds of. 60 size helicopter. Precision air bleed carburettor makes adjustments simple, & efficient mufflers keep things quiet at the field.
Features: Top grade CNC equipment, state-of-the-art technology are used enhanced carburettor; swept back for safety, which makes adjustments simpler Forged aluminium connecting rod with dual bushings connects it all together ISO9001 Certified which guarantees the maximum power & performance Smooth running & long lasting power plant with front & rear ball bearings Oversized heat-sink head keeps things cool Awesome power-to-weight-ratio to allow 3D manoeuvres Ringed-type piston Designed for both beginners & experienced modellers Specifications: Displacement: 11.49 cc. / 0.701 cu. in. Bore: 25 mm. / 0.984 in. Stroke: 23.4 mm. / 0.921 in. Crankshaft: UNC 5/16
- 24 Practical RPM: 2, 000 ~ 18, 000 Output: 2.25 BHP / 16, 000 RPM Weight: 570 g. Iwo/muffler / 20.10 oz. Product Name/ Code:PRO 70H TT9607 Manufacturer: Thunder Tiger

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The PRO series helicopter ring-type engines are equipped with dual ball-bearings, Schnuerle porting, one ring-type piston / cylinder assembly & two-needle automatic mixture control carburettor. All Thunder Tiger engines have been designed to combine high performance with easy handling & maintenance using CAD computer technology, resulting in consistent high quality & reliability. Subjected to rigorous quality control check ensures that it will provide years of trouble free use. The PRO-Heli series are manufactured by automated computer-controlled machinery, resulting in a product that looks & performs better. The PRO-90H provides the smooth hovering & on-demand power & acceleration required by FAI pilots as well "hot dog" & "3-D" aerobatic fliers. Precision air bleed carburettor makes adjustments simple, & efficient mufflers keep things quiet at the field.
Features: Top grade CNC equipment, state-of-the-art technology are used enhanced carburettor; swept back for safety, which makes adjustments simpler Forged aluminium connecting rod with dual bushings connects it all together ISO9001 Certified which guarantees the maximum power & performance Smooth running & long lasting power plant with front & rear ball bearings Oversized heat-sink head keeps things cool Awesome power-to-weight-ratio to allow 3D manoeuvres Ringed-type piston Designed for both beginners & experienced modellers Specifications: Displacement: 14.78 cc. / 0.902 cu. in. Bore: 28 mm. / 1.102 in. Stroke: 24 mm. / 0.945 in. Crankshaft: UNC 5/16
- 24 Practical RPM: 2, 000 ~ 16, 000 Output: 2.75 BHP / 15, 000 RPM Weight: 575 g. wo/muffler / 20.28 oz. Product Name/ Code:PRO 90H TT9609 Manufacturer: Thunder Tiger

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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: 5.98 cc. / 0.365 cu. in. Bore: 20.8 mm. / 0.819 in. Stroke: 17.6 mm. / 0.693 in. Crankshaft: UNF 1/4 / 28 Practical RPM: 2, 000 ~ 17, 000 Output: 1.1 BHP / 16, 000 RPM Weight: 314 g. w/muffler / 11.06 oz. Product Name/ Code:PRO-36 Manufacturer: Thunder Tiger

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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: 7.47 cc. / 0.456 cu. in. Bore: 21.8 mm. / 0.858 in. Stroke: 20.0 mm. / 0.787 in. Crankshaft: UNF 1/4 / 28 Practical RPM: 2, 000 ~ 17, 000 Output: 1.43 BHP / 16, 000 RPM Weight: 455 g. w/muffler / 16.05 oz. Product Name/ Code:PRO-46 TT9141 Manufacturer: Thunder Tiger

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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

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