Re: Crossflow vs. Looper
Skools in 98% correct and BrainCT is a touch right as well. Technically you are looking at "diminishing returns" as the horsepower continues to increase the gains become smaller and smaller. There is a line, where when reached, it takes huge amounts of additional power to see very small gains. That is the area reffered to as hull speed. On a V-20 per say, with a 150 you can get 43ish mph, add 50 hp and you add 4 mph. Put 500 hp on one and you'll likely get mid 60's in theory. If you jumped it to 600 you'd likely see little or no increase. The hydrodynamics of the last little bit of drag just can't be overcome, efficiently at least. That's the main reason that the big boat speed records only inch up. HP is easy to find and stuff into a 40'er. For them the HP isn't the limiting factor, the hull form is.
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