ORIGINAL: blw
ORIGINAL: Konrad
The 120AX is 3.1 hp @ 21 oz and the OS200 is 3 hp @ 31 oz with muffler 35 oz. Not that I'd rely on any data from OS to make my point or purchase
That is true for almost all manufacturers statements if you are looking for a flyable set up.
Flyable (whatever that is) or not, OS's ads are VERY optimistic! I have only measure two OS engines that meet their claimed power output. One was the OS 1.08 and the other I can't recall. I choose to focus on the OS line 2 cycle vs 4 cycle just to keep the variables of how the units were derived under a little more control.
Power is power, now if you are talking about torque and the RPM band it is generated in, then we have a more realistic representation of the engine's application. But unfortunately this doesn't help the "AD HYPE" as this a lower number than the calculated value OS prints. True the issue is not just OS's but rather ours ,the buying public that believes AD HYPE!
Edit: to change power to RPM as in "RPM band"