Subject: More flight data Props
From: ACRE
Date: 7/13/2004, 10:46 PM


   >> Wow on two account.  The pilot survived the prop failure (very rare
unless
   >> it was on the ground).  And slow speeds with the MT??  Hmm..  They
seem to
   >> cost enough..  If that is the case you may as well get the IVO.  Maybe
I
   >> should just get a bigger wooden prop.  Sure wouldn't cost as much.
Anyone
   >> know of a company that could make a good left handed metal prop for an
RV?
   >>
   >> Has anyone else heard that MT props are a little slow?
   >>
   >> Dave Leonard
   >
   >My hangar neighbor Tracy Saylor with the fastest RV6 in the world
   >had the same experience. The trouble with the MT prop is the blades are
made from
   >low tech wood with a thin coating of fiberglass finishing mat. This
means the
   >tip airfoil sections are too thick. To be entirely up to date it needs
thinner
   >carbon fiber blades. The latest high performance Hartzel aluminum props
   >used at the Reno races have a 3% thin airfoil section out near the tips.
   >
   >Paul Lamar


Paul, what is Tracy Saylor's current record at? 240-something was the last I
heard. Do you think he would be available for a little head-to-head race
next spring after I get things cleaned up a bit?  :)

Dave Leonard

Sure but I want to warn you he has a metal constant speed prop which is
a huge advantage. It is re-twisted for top speed. It will take at least a carbon
fiber fixed pitch prop optimized for top speed to beat him.
 
Paul Lamar
 
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