OS Engines  
OS engines
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As the replacement for the high-performance .46 FX, it's no wonder that the .46 AX shares many of its features. A remote needle valve. Mounting bolt patterns. A balanced "D"-cut crankshaft supported by dual bearings. CNC-machining for the piston and other parts. And the same exclusive ABL cylinder liner that has made FX reliability a byword.
OS MAX 46AX with E-3010 Silencer
   

  Thunder Tiger  
Thunder Tiger Engines
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Easy starting, easy adjustment and a great sport flyer engine, with choices ranging from the diminuative GP07 R/C to the ever popular GP61 R/C. Thunder Tiger's G.P series engines have power to spare for the discriminating sport flyer.
GP40 ABC R/C with Muffler