Thunder Tiger CORP. -- GP-28 NO.9028


Item No. 9028
Displacement(c.c. / 4.53 c.c. / .277 
Bore(mm / in.) 18.7 mm / .736 in. 
Stroke(mm / in.) 16.5 mm / 0.65 in. 
Practical R.P.M.(R.P.M.) 2,500 ~ 16,000 rpm 
Output(BHP/RPM) 0.70 BHP / 15,000 RPM 
Weight(g/oz) 221.1 g / 7.80 oz 


1. GP-28 engine x 1 EA 2. Special wrench x 1 EA 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


The Thunder Tiger GP-28 airplane engine is designed and developed under the ''Green Power" concept and feature a one-piece crankcase with an integrated carburetor body design to lower overall parts count.
No mounting screws are required for the cylinder head and backplate and a cast slot engine mount design simplifies the machining process.
Equipped with 3-chamber muffler, noise levels are greatly reduced while delivering excellent performance and lower fuel consumption.
Finally, the swept-back needle valve design and precision air bleed carburetor make operating the GP-28 airplane engine a safe, reliable and simple procedure providing you with years of trouble-free use.


Designed for sport airplane use
One-piece carb-crankcase structure
Bronze bushing support for easier maintenance
Aluminum piston with Nickel-plated brass cylinder liner
Air bleed carburetor design for easier adjustments
Swept back needle valve for added safety
CNC-machined aluminum heat sink head and backplate
Dual engine mount design
Forward side exhaust port
3-chamber muffler included
Redline R2 glow plug included






Spare Parts List

Optional Parts List