how to read "sea level performance curves" charts

GeorgeC

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GeorgeC
I'd been having a hard time interpreting charts like the one I have attached.

The glossary defines "propeller load curve" as "a plot of horsepower, fuel flow, or manifold pressure versus RPM through the full power range of one engine using a fixed pitch propeller or a constant speed propeller running on the low pitch stops."

That was clear as mud to me, so I googled "propeller load curve", and came up with a yachting site that did a decent job of explaining it in terms of power available vs. power absorbed:

http://www.yachtingmagazine.com/deciphering-your-engines-performance-curve
 

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