RE: how can you prove it woos?
I also agree that 100 sounds way to quick for what the model is doing. I may try again tommorow to measure some sound. I put in the value of 10 in there like I read somewhere and that adds to the speed so maybe I shouldn't be putting that in the third column. I also think that the second curve from the bottom is the primary frequency because the engine rpms seem to be about what they should be, 16,000 rpm.