Frans=0Ain theory only is a 2 blade more efficient, you get more vibration
that can't be balanced out. More vibration gives more disruption to laminar
flow so more drag.=0AThis is also why 2 blade windmills are more likely to
throw blades. 2 blades don't cope with non axial air flow, multi blades do
=0AGraham=0A=0A=0A=0A=0A________________________________=0AFrom: Frans Veld
man <frans@privatepilots.nl>=0ATo: europa-list@matronics.com=0ASent: Thursd
ay, 15 April, 2010 23:14:32=0ASubject: Re: Europa-List: Weight reduction -
Brake Discs=0A=0A=0A=0AGet a two blade prop. One blade of a CS prop is 4Kg'
s worth. Apart from=0Athat, it cruises more efficiently, cutting down on fu
el (read: weight).=0A=0AFrans
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