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#2
11-11-2009, 02:19 PM
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| 147. I have no idea how many variations there are but don't forget all the jet drives out there! Tom  |
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#4
11-11-2009, 02:24 PM
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| So, KURTZ, RICE, the standard outboard prop protectors, bow thrusters... Why do you ask, gonzo? Tom |
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#6
11-11-2009, 02:34 PM
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| Curiousity's good. Do jet turbines count? They're in a tube. I guess not, they're not props... |
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#7
11-11-2009, 03:10 PM
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| Tom, do you really mean turbines? Per definition a turbine is a device extracting mechanical energy (mostly shaft power) from a fluid flow, while a pump (equals propeller and impeller) is transferring mechanical energy to a fluid. Gonzo started with a quest on the later kind of machinery. Sorry to rain on your parade, but as a turbomachinery research engineer, this distinction is a soft spot to me..... |
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#10
11-11-2009, 05:29 PM
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| baeckmo, I really did mean turbine as gonzo didn't stipulate the fluid be water. I should have clarified I was thinking of an aircraft style jet. But it's still not a prop, so no matter, but thanks for asking. Tom |
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