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

We have just added Horizon Hobby and Hobbico to our Links page. These two hobby giants are among the largest distributors in the US. Horizon carries brands like Align, JR, Spektrum E-Flite, and YS while Hobbico [...]

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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!!

These pics tell a thousand words, what a beautiful helicopter!
Look at that rotor head! Patterned much after the head found on the Rave 450 which has proven to be a winner.
Component placement and [...]

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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.
A proven powerhouse…made better!
The 91HZ Ringed Heli Engine is a major player at heli competitions worldwide, and this newest version takes 3D performance to another level!

The redesigned regulator [...]

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

This is the O.S. .91HZ-PS 3D Helicopter Engine with Pump and 61B-PII Carburetor features a revised pump diaphram for improved fuel regulation and consistency.
FEATURES: PD-08 pump works with a matched 61B-PII carburetor and integral regulator attached to carburetor to deliver a steady fuel [...]

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

A new 40L carb was designed to include low, mid and high needles to allow fine tuning through out the RPM range. The throttle arm now has 4 arms for versatility in servo linkage setup.

 
The inernal components have been made with improved materials.

 
The new [...]

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

Over the last decade, the manufacturing might of China has significantly influenced the Western hobby industry. For the R/C helicopter enthusiast this has meant a boon of affordable models, equipment and parts readily available whenever the want arises. While [...]

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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.
Oddly, though not currently listed on the manufacturer’s own website, the new pipe is beginning to be shown in backorder [...]

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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. The carburetor [...]

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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. 

It hit my LHS (rotor.com.sg) today and retails for around US $310.00, so I guess it will hit all good hobby shops real soon.

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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 at [...]

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We hear so much today about electronics and helicopters that it seems at if the engine technology is falling way behind everything else.  Look at the strides being made in the electric arena with battery, esc, and electric brushless technology.  We have barely heard a peep out of of engine manufacturers in the way of huge engine technology advancements.
Seems [...]

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Looks like Align and OS are teaming up again to give you the OS91H Motor.  They have done this in the past with the OS Hyper 50.  Looks like they are gearing up for a T-Rex 700 combo kit.  I wonder what kind of exhaust system they will come up with next.

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