Specification:
- Displacement(c.c. / cu.in.): 1.13 c.c. / 0.069 cu.in. 
- Bore(mm / in.): 12.0 mm / 0.472 in.
- Stroke(mm / in.): 10.0 mm / 0.394 in. 
- Practical R.P.M.(R.P.M.): 4,000 ~ 18,000 rpm 
- Output(BHP/RPM): 0.19 BHP / 17,000 RPM 
- Weight(g/oz): 94.4 g / 3.33 oz 

All the latest Thunder Tiger series engines have been designed to combine high performance with easy handing and maintenance using modern CAD computer technology. Major components of the engines are machined from the highest quality materials using state-of-the-art CNC manufacturing techniques, resulting in consistently high quality and reliability.
The GP-07 engine is equipped with maintenance free bronze bushings, Schunuerle porting, special ABN piston and cylinder sleeve, easily adjusted air bleed carburetor, and safe angular needle valve. The GP-07 has been designed for both beginners and experienced modelers.  

Designed for park fly airplane use. One-piece carb-crankcase structure. Bronze bushing support for easier maintenance. Aluminum piston with Nichel-plated brass cylinder liner. Air bleed carburetor design for easier adjusting. Swept back needle valve. CNC-machined aluminum heat sink head, propeller nut and backplate. Dual engine mount design. Side exhaust. 3-chamber muffler. Redline R2 glow plug included.