JDEggers wrote:

Just for fun I keyed your numbers into a spreadsheet to see what would
happen.  I then used the 3D plot to get a picture of the pattern.   It is
interesting to see that the first 1/3 of the prop is very dynamic but from
their out the pitch is reasonably stable.  The discussion was around both
changing the pitch using the IVO method as well as the entire blade.  I think
this would cause sever turbulance and imbalance if you did as the tip and
inner 1/3 of the blad would be in conflict.    When you look at the graph, if
you point at a corner you can rotate the design for different perspectives.

It's kind of interesting. Jim

"first 1/3 of the prop is very dynamic"

Can you explain this a little bit more Jim?


Paul Lamar
 
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