Thunder Tiger - GP-42

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Product No. TTR9041 MSRP: $108.99   The GP series engines are equipped with maintenance-free bronze bushings, Schnuerle porting, a non-ring piston, an easily adjusted air bleed carburetor, and a safe angular needle valve.   Specification:  Displacement: 6.49 cc. / 0.396 cu. in.  Bore: 21.2 mm. / 0.0.835 in.  Stroke: 18.4 mm. / 0.724 in.  Crankshaft: UNC 1/4 / 28  Practical RPM: 2,000 ~ 17,000  Output: 1.10 BHP / 16,000 RPM  Weight: 357.2 g. w/muffler / 12.6 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. The GP-42 engine provide excellent performance and value for .40-powered trainers.

The GP series are manufactured by automated computer-controlled machinery, resulting in a product that performs as well as it looks. Ultra-dense aluminum alloy castings, one-piece machined crankshafts and high silicone-content pistons are produced to exacting tolerances for more power and easier starts. Precision air bleed carburetor makes adjustments simple, and efficient mufflers keep things quiet at the field.