Posted for George Braly <gwbraly@gami.com>:

Dave,
  
The increase from 195 to 208 suggests an improvement in prop efficiency on
the order of 20% or so.
  
If the old prop was a miserable 85% (it should be in the 87 to 91 range)
then the new prop would be up around 102% or so in efficiency.
  
Since no prop ever gets efficiencies anywhere near 100%, there has to be
something else going on with the data.
  
Still,  it sure looks like it made a nice improvement!   I'm looking forward
to flying it.
  
Regards,  George

I just installed a Hartzell Scimitar prop on my IVP and have the following
data comparing it to the original 3 blade Hartzell.   Still testing but the
initial results look very good and I thought I would share them with you:
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