Thunder Tiger CORP. -- RedLine.56 Engine for Helicopter NO.9612

RedLine.56 Engine for Helicopter

Item No. 9612
Displacement(c.c. / 0.553 cu in/9.05 cc 
Bore(mm / in.) 0.906in/23mm 
Stroke(mm / in.) 0.858in/21.8mm 
Practical R.P.M.(R.P.M.) 2.000~21.000 RPM 
Output(BHP/RPM) 223 BHP@17.500rpm 
Weight(g/oz) 13.8oz/390g 


Improved from the acclaimed RL-53H for its awesome raw power, the RL-56H is ready to write its legend from now on. Higher performance and extreme power in a compact-size engine with yet larger displacement and awesome power.


1.Designed for stable hovering and aerobatic 3D flights
2.XC2 (extreme composite coating) cylinder liner with special criss-cross pattern etched
3.Precisely-balanced crankshaft with Ni plating to further reduce corrosion
4.Knife-edged design & high-strength connecting rod with bushings pre-installed
5.Lightened hypereutectic machined Al-Si ringed piston
6.Machined over-sized heat sink head
7.Reinforced resin rear cage ball bearing support
8.State-of-the art CNC machined components
9.Non-seizing flange mount carburetor with thermo insulator
10.Push-pull throttle lever
11.2 Needle valves adjusted with both Hex and FT driver at same side
12.High performance Redline R3 glow plug included

Spare Parts List