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Here is some propeller information.  I hope more people will post their
numbers too.
My engine is a IO320 with 9.5:1 pistons,  dyno'ed at 196hp, by Lycon.  The
airframe is a 235.

Data is from linear trend lines fitted to a large number of data points
taken on different days at different altitudes and temperatures.

Manufacturer                     Dia    Pitch       Static RPM     Speed at
2700 RPM

Performance Propellers
3-blade                           60       80           2280            
187kt

Warnke  (almost constant
speed)  2-blade                   64       79           2450            
175kt

Felix "bicambered"
3-blade                           61       81           2150            
176kt

Sadly, I broke the Performance prop in an accidental gear retraction.  The
Warnke prop was flown without a spinner.

Bob Belshe
Moraga, CA     For pictures of my Lancair and new Apollo avionics, see    
                              http://members.home.net/rbelshe/
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LML website:   http://www.olsusa.com/mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.
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