Karl=0ACost I suspect. Most things are a compromise=0A=0AGraham,=0A =0AWhy
do most GA aircraft have 2-blade props ?=0A =0AKarl=0A =0A=0A=0A =0A=0A=0A
=0A =0A________________________________=0A Date: Thu, 15 Apr 2010 22:54:04
eight reduction - Brake Discs=0ATo: europa-list@matronics.com=0A=0A =0AFran
s=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 flo
w so more drag.=0AThis is also why 2 blade windmills are more likely to thr
ow blades. 2 blades don't cope with non axial air flow, multi blades do=0AG
raham=0A=0A=0A=0A=0A________________________________=0A From: Frans Veldman
<frans@privatepilots.nl>=0ATo: europa-list@matronics.com=0ASent: Thursday,
15 April, 2010 23:14:32=0ASubject: Re: Europa-List: Weight reduction - Bra
ke Discs=0A=0A=0A=0AGet a two blade prop. One blade of a CS prop is 4Kg's w
orth. Apart from=0Athat, it cruises more efficiently, cutting down on fuel
(read: weight).=0A=0AFrans=0A=0A=0A=0A=0A=0A>http://www.matronics.com/Navig
ator?Europa-List=0Aronics.com=0Aww.matronics.com/contribution=0A=0A=0A=0A
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