Hi sanjoh,

Here we go again, but I guess I deserve it. :-) I've been accused of this before...so let me make this statement....again, and I'm glad to do it. I am very opinionated about this subject ( and others :-) ) but it is only because I believe in what I am saying with strong conviction. All of my statements are in my humble opinion, as are everyone's that contributes to this, or any other thread. I am biased, but it is from experience with Taurus', not any covert connection to the company. Though they are only my opinions, I try to back them up with real data, where I can, to lend some unbiased weight to them. Some of my statements will remain unsubstantiated because they involve subjective opinions, such as relative smoothness of engines, though they are based on substantial experience with most makes of motors over a 30 year period.

>>Since when does old data become less relevant? A data point is just that.

Old data, that is not well documented, becomes less and less relevant as time passes because the circumstances surrounding the collection of that data typically will become more obscure. A data point is not just a data point. It is only as valid as the documentation of it's collection method. Some of the data on RCFaq is very sparse and poorly documented. It is hard to lend much credibility to data that is not complete....such as in this specific case with the two samples of the Taurus 3.2, neither one of them state what type of Menz prop they were testing with(I assume an "S" from those numbers), when the tests were done, what muffler was used, what altitude they were at, or even what the temperature was. All of those can be huge variables. I guess what my point would be, without more information about these tests, they are not very valuable for comparison purposes. The Menz S puts a lot more load on an engine than other props, as mglavin stated before. As I mentioned, my TS-42 turned a Zinger Pro 22X8 at 7200RPM, while it turned a Menz S 22X8 at 6750....quite a difference. Apples to apples comparisons are a must to know for sure what engines are really doing, and even then you really should be taking multiple samples of each type of engine at the same time.