Engine	GP-42
Displacement	6.90 c.c. / .421 cu.in.
Bore	21.5 mm / 0.846 in.
Stroke	19.0 mm / 0.748 in.
Practical R.P.M.	2,000 ~ 15,000 rpm
Output (BHP/RPM)	1.10 / 14,000
Weight (g/oz)	357.2 / 12.60

All Thunder Tiger engines have been designed to combine high performance with easy handling and maintenance using 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 consistent-high quality and reliability. The GP series engines are equipped with maintenance-free bronze bushings, Schnuerle porting, a special ABN type piston and cylinder sleeve, an easily adjusted air bleed carburetor, and a safe angular needle valve. The engines have been designed for both beginners and experienced modelers.

Designed for sport airplane use.
One-piece crankcase structure.
Bronze bushing support for easier maintenance.
Air bleed carburetor design for easier adjusting.
Aluminum piston with Nichel-plated brass cylinder liner.
Swept back needle valve for more safety adjustment.
Forward side exhaust port.
Side exhaust.
3-chamber muffler included.
Redline R2 glow plug included.

1. GP-42 engine x 1 EA
2. Carburetor assembly with 2 mounting bolts
3. Muffler assembly x 1 EA
4. REDLINE R2 glow plug x 1 EA
5. Instructional manual x 1 EA
6. TT logo sticker x 1 EA

Instruction Manual
9041 (5 MB)
9041-manual (272 KB)
Parts Catalog
9041-Catalog (5 MB)