Redline marks a new range of products from Thunder Tiger focused on High Performance and Power!

This new series of engines features high performance and extreme power surpassing the competition!
Equiped with biggest displacement and awesome power, RL-53H is the best choice nitro power plant for your 50 size heli.
Install TT new RL-53H, you will get the extreme power you never experience before!!
Despite the increased displacement, Thunder Tiger retains the dimensions of the important areas so that it's a drop fit into majority of the helis.

Basic Specification:
Displacement: 0.529 cu.in / 8.67 cc
Bore: 0.886in/ 22.5mm
Stroke: 0.858in/ 21.8mm
Practical RPM: 2,000~21,000 RPM
Output: 2.1 BHP @17,000rpm
Weight: 13.4oz/380g
Glow Plug: RL#3 Plug included

Features:
New REDLINE series engine
Biggest displacement with large power in the .50 class heli engine
Fix type Carb. Install with thermal Isolator gasket construction
Ringed piston with XC2 cylinder construction
Push-Pull throttle lever
Anodize Machinery Cylinder Head
LB Type RR Ball Bearing
Reinforce beam structure