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Huge power and performance!
In order for 90-sized machines to nail huge maneuvers and hardcore,..
105HZ 1.05 Helicopter Engine..
State-of-the-art power for serious heli pilots!
The 55HZ-R DRS Ringed delivers state-of-the-art..
Small in size — delivers big 3D power!
The 55HZ-H Hyper Ringed from O.S. has the power and relia..
A "Hyper" engine for hyper heli performance!
The 50SX-H Ringed Hyper is ideal for 50-class heli..