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Tracy wrote:
Yes, 2" of Hg, but that was at top speed when racing (224 mph), not cruise. My ram air inlet is about 1" behind the prop which may affect the amount.
That's good enough.
I'm rerunning the calculations that I did to find out how much power increase I can get from the blower I built, now that I'm done building it and can get the final measurements. I work like Congress. I had to build it, before I could measure it. The inlet stagnation pressure has some effect on the outcome, but not much.
My conservative estimate with what I have is that Pout/Pin=1.044. This should translate to somewhere around an 8hp increase.
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