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OS Engines

OS AX / FX Series

 
 
The OS .46AX replacement for the high-performance .46 FX, it’s no wonder that the .46 AX shares many of its features.  

The OS .46AX replacement for the high-performance .46 FX, it’s no wonder that the OS .46 AX shares many of its features.

 
 
 
 
OS 61FX - "Once started, the .61 FX has a nice slow and reliable idle, and then it will accelerate quickly and cleanly to peak RPM"  

OS 61FX - "Once started, the .61 FX has a nice slow and reliable idle, and then it will accelerate quickly and cleanly to peak RPM"

 
 
 
 
OS 91FX - Designed for sport, but engineered for excellence, the .91 FX offers the power and user-friendly features of other FX Series engines in a displacement fit for large-scale aircraft.  

OS 91FX - Designed for sport, but engineered for excellence, the .91 FX offers the power and user-friendly features of other FX Series engines in a displacement fit for large-scale aircraft.
 

 
 
 
 
OS 120AX - series is ideal for 3D, Precision and Sport flying  

[OS19218 OS 120AX] motor w/o muffler - ideal for 3D, Precision and Sport flying
 

 
 

OS Four Stroke Engines

 
 
[OS36310] O.S. Max IL-300 Dia-Star 4-Cylinder, 4-Stroke Inline Limited Edition Collector's Engine.   The newest and latest to R/C modelling at model flight[OS36310] O.S. Max IL-300 Dia-Star 4-Cylinder, 4-Stroke Inline Limited Edition Collector's Engine.

 
 
 
 
[OS34710] OS FS-70 Ultimate four stroke engine   OS FS-70 Ultimate four stroke engine. The FS-70 powerhouse delivers smoother, more consistent muscle.
 
 
 
 
The OS FL-70 was designed for higher torque, greater fuel economy and more realistic sound, in an airplane engine.  

The OS FL-70 was designed for higher torque, greater fuel economy and more realistic sound, in an airplane engine.

 
 
 
 
[OS35920] OS FS-91 Surpass II four stroke engine   OS FS-91 Surpass II four stroke engine
 
 

OS Helicopter Engines

 
 
OS Engines 37 SZ-H helicopter - Designed to deliver premium performance for 30-sized machines, from extreme aerobatics to stable hovering!  

OS Engines 37 SZ-H helicopter - Designed to deliver premium performance for 30-sized machines, from extreme aerobatics to stable hovering!

 
 
 
 
OS 50 SX-H - Developed expressly for F3C M-class competition machines utilizing .50-size engines, the .50 SX-H Ring heli features the same mounting hole spacing as the .46 FX-H Ring engine so upgrading's a breeze.  

OS 50 SX-H - Developed expressly for F3C M-class competition machines utilizing .50-size engines, the .50 SX-H Ring heli features the same mounting hole spacing as the .46 FX-H Ring engine so upgrading's a breeze.

 
 
 
 
OS 91 SXH - Taking heli performance to a new level. It's the largest engine displacement allowed in FAI F3C and AMA-sanctioned heli competitions!  

OS 91 SX-H C-Spec - Taking heli performance to a new level. It's the largest engine displacement allowed in FAI F3C and AMA-sanctioned heli competitions!

 
 

OS Glow Plugs for 2 & 4 Stroke Engines

 
 
[OSPLUG8] OS Glow Plug 8 for 2 stroke engines
[OSPLUGA3] OS Glow Plug A3 for 2 stroke engines
[OSPLUGA5] OS Glow Plug A5 for 2 stroke engines
[OSPLUGF] OS Glow Plug F for 4 stroke engines
 
 

O.S FX series engines for RC.  O.S are the state-of-the-art in sport/competition engines!

First to introduce a mass-produced 4-stroke engine, an innovator in every phase of R/C engine production, O.S. also retains a tradition of craftsmanship that pays off in durability and power. Each new engine is the product of over two years of testing and design--and more than two generations of R/C engine experience.

OS Engines

[OS12956] OS 32SX-H ringed heli engine

Download Manuals from Model Flight - O.S Engines for RC cars, RC Boats and RC Helicopters. [OS13380] OS 40LA RC motor

Download Manuals from Model Flight - O.S Engines for RC cars, RC Boats and RC Helicopters. [OS13390] OS 46LA RC motor

[OS14000] OS 37 SZ-H Ring helicopter motor

[OS15480] OS MAX 46AX RC motor

[OS15500] OS 50 SX-H Ring helicopter motor

[OS17750] OS 61FX RC motor

[OS17950] OS 61LX-H heli engine

[OS19020] OS 91FX RC motor

[OS19021] OS 91FX RC motor

[OS19040] OS 91 SX-H heli engine

Download Manuals from Model Flight - O.S Engines for RC cars, RC Boats and RC Helicopters. [OS19260] OS 160 FX Motor

[OS33000] OS FS-30S four stroke engine

Download Manuals from Model Flight - O.S Engines for RC cars, RC Boats and RC Helicopters. [OS34200] OS FS-52 Surpass four stroke engine

[OS34710] OS FS-70 Ultimate four stroke engine

[OS34800] OS FL70 four stroke motor

Download Manuals from Model Flight - O.S Engines for RC cars, RC Boats and RC Helicopters. [OS35530] OS FS-120 Surpass-E four stroke engine

[OS35920] OS FS-91 Surpass II four stroke engine

OS Glow Plugs for 2 & 4 Stroke Engines

 
 
[OSPLUG8] OS Glow Plug 8 for 2 stroke engines
[OSPLUGA3] OS Glow Plug A3 for 2 stroke engines
[OSPLUGA5] OS Glow Plug A5 for 2 stroke engines
[OSPLUGF] OS Glow Plug F for 4 stroke engines
 
 

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Article - Getting the Most from Your 2-Stroke Engine... tips and tricks
Getting the Most from Your 2-Stroke Engine... tips and tricks

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