What I'm trying to say, is that by testing in an anything goes way, I think you can make any mathematical claim you'd like. Such as the 2.2 horse Rossi. Yes, on an 9x9 prop it turns about 18,000 rpm and has a high horsepower rating, but what does that mean in real terms. On paper, I guess the 25% claim can be proven, but in real world terms, I cannot say that the Moki can do ,at 75% power, what the Super Tiger can do at 100% power. I do still believe that it is a stronger engine, I just can't be comfortable giving a percentage of power difference without seeing them side by side. If I saw a same prop, same fuel, same day comparison that showed a vast difference, then I'd be happy to work the math and say a definate percentage. Often people who test engines intentionally use different props to keep manufacturers happy. Example: Brand A truned an APC 16x6 prop at 10,000 rpm. Brand B turned a Master Airscrew 16x6 at 10,300 rpm. That's a difference of x horsepower. Crapolla dude! The difference in prop efficiency alone makes that comparison worthless. ST 3000 vs Moki 180 with the same prop, same fuel, and same day is what I'd like to see. I'd still bet a buck that the Moki comes out on top, but I have no clue what percentage of difference there would be. Do I believe that the 25% difference is provable? Probably yes. Do I believe that the difference is real? Probably no.

Better yet, two planes one Moki powered and one Tiger powered. Same prop, fuel, and day. Let's have a tug of war! That would settle this real quick!