New Outrage Team Member Bert Kammerer puts the new OS 105 through its paces.

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Japan’s OS Engines is jumping in the nitro motor wars with their latest addition the OS 105HZ and 105HZ-R. O.S. E The engines are designed for (F3C) 90-class helis and feature an increased displacement of 17.17cc while retaining 90-size dimensions. Both engines sport a large blue anodized cooling head, large aluminium Venturi for the carburetor [...]

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I don’t know how the RCHR Links page went so long without these two on it. Click for more details!

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Curtisyoungblood.com has publish a bunch of new pics, specs, parts listings, and the manual for the Rave ENV. This is one hot bird!!

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Our partner in crime, RCMania just sent us the goods on the new OS .91 HZPS-3D motor.  Look a the data and judge for yourself.

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A revised version of OS’s popular 91 pumped engine has just become available!

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Some new information and pictures on the upcoming OS MAX-55HZ engine from OS Engines Japan:

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A full, detailed review with over 100 photos including the illustrated manual of this new nitro 50 from China!

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T-rex 500 powered by the OS37. Decent power. This is how the 30size should have been.

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The folks at HeliDirect & Outrage RC have just released the new Outrage Hyper 90 pipes for both OS & YS motors.  Not too much info available on the pipe, but it comes with the 50% crash replacement guarantee that has been so popular with the other Outrage pipes.  See Helidirect.com for more info.

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Hatori has released the new SB 20 pipe!

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Now showing up on the HeliDirect website is a new offering from the folks over at Outrage RC. A new .50 sized nitro heli muffler designed to fit OS, YS and TT Redline .50 sized engines.

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If you thought the above title is old news of the recently released 91HZ or Align 90 size engines, then you are wrong. If you thought OS is done with their PS (pump) system on their heli-engine…again…you are wrong. This new variant of the 91HZ has been equipped with the O.S. PD-08 pump and regulator system. [...]

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Its has been released to the mass market, which means you can now buy a OS 91HZ in a OS box with the OS label, instead of the Align version. 

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The Japaneses have always been crazy about their engines, trying to squeeze out the maximum power from minimum capacity. It seems they have applied that to the OS-50 hyper. R/C engine tuning house and aftermarket parts manufacturer, M-Speed, has been selling two types of very modified OS-50 hyper. Lets start with the more affordable variant [...]

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