Thunder Tiger - PRO-90H (R)

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Product No. TTR9609 MSRP: $356.99   The PRO series helicopter ring-type engines are equipped with dual ball-bearings, Schnuerle porting, one ring-type piston / cylinder assembly and two-needles automatic mixture control carburetor.   Specification:  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.

All Thunder Tiger engines have been designed to combine high performance with easy handling and maintenance using CAD computer technology, resulting in consistent high quality and 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 and performs better. The PRO-90H provides the smooth hovering and on-demand power and acceleration required by FAI pilots as well "hot dog" and "3-D" aerobatic fliers. Precision air bleed carburetor makes adjustments simple, and efficient mufflers keep things quiet at the field.