After Richard's post I googled some research and look what I found, what do you think?
New Sensenich Composite Ground Adjustable Propellers for Experimental and Light Sport Aircraft:
Engine Propeller Model *Max Dia. *Min Dia. SPECIAL $$ *Wt. Hub Note
Continental O-200 2EK/C72AE-0 72 70 $2556.00 -
http://www2.sensenich.com/direct/propdir.htm
Geo