|
|
At 11:11 PM 04/24/2004 -0400, Tracy wrote:
My goal is to choose a prop which will allow the engine to turn about the same rpm as my old one under cruise conditions but allows me to use the additional power mainly as "afterburner" for racing or increased takeoff performance.
I'll be doing more testing next week to get some hard numbers.
I'll be very interested in seeing those "hard numbers"... especially what kind of performance you see when you operate at power levels similar to those you used with the old prop and gearbox.
With the size of prop you were running before, where did you redline the engine to keep tip speeds subsonic? The new drive buys you a 30% increase in engine RPM at the same prop RPM, but with the new, larger prop, you'll have to spin it a bit slower... I'm sure you've done all the calculations, would you care to share that bit of research with us? (ie... old setup redline vs new, prop tip speeds, expected MPH & HP at redline and cruise settings for both, etc.) Thanks....
<Marv>
PS... I don't mean to discount all the responses from the rest of you who are signed on to this, I just figured that asking Tracy the above questions would make the most sense. I appreciate ALL the input. Thank you all.
|
|