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First, thanks for the responses on the AD list.  There appear to only be 2

AD's, which seems a bit odd (wing AD's).

I asked an RPM question a week or so ago, and was directed to my prop, and

the tach.  I've only made it to the prop thus far.  One of you had said I 
was "looking for something around 7153".  What I've got appears to be
7148.

I'm assuming that the first two numbers are length, and the last two are 
pitch, right?  Also assuming that, like in boats, lower pitch numbers= 
higher low end (climb), less top end (cruise), AND that RPM's increase as 
the prop goes from a speed prop to a power prop.  Are these assumptions 
close?

Thanks, folks!


Stephen Coffey



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