ORIGINAL: les40
Thanks for all of your replies. In general those arguing against me are arguing with subjective points such as throttle ability. Both engines throttle up well enough if tuned properly. The power I'm talking about is what you need when you're flying a horizontal line and need to pull vertical for awhile to do a humpty bump. That power is directly measured (objectively) by measuring how many rpm you can get out of a particular prop with a tachometer. I am definitely NOT comparing apples and oranges. I'm taking measurements of prop rpm which is directly related to thrust. Am I wrong?
I'm so tired of people clouding this issue with irrelavent, subjective data.
The weight I got for the OS engine came from the OS website. It doesn't specify whether it is engine alone or with muffler. Maybe it is engine alone. I will do a little research and repost.
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I'm not argueing against you, nor for you, for that matter.
You can't make a fair comparison without taking weight into consideration. Also, one thing we may have missed is the extra fuel load that is required by the two-stroke engine versus that of the four-stroke engine.
A purpose designed two-stroke can share many of the good qualities of a four-stroke engine. Reduced fuel consumption, better ability to swing a large prop, good tractability with great fuel draw without using a pump, etc. To say that it is strictly a matter of which engine turns a given prop at whatever rpm is missing the boat, as far as I'm concerned.
Personally, I enjoy both types of engines. For Humpty-Bump maneuver flying, I think that you can find good engines in either two or four-stroke types.