In UK, PFA engineering will not allow anything but wooden props on VW engines - they have a lot of experience in this area, so I tend to trust their wisdom.
>Yes it is the consenting opinion of all the direct drive VW builders that >running anything other than a wooden prop for any length of time at all will >result in a crank failure, I believe with or without the Force One hub... > > No on to what prop? You should remember that diameter and pitch are only 2 parameters to affect prop performance. The prop pitch just tells you the maximum theoretical air speed the prop can pull at given revs - it doesn't tell you how much oomph you need to spin it. If you want to investigate the perfect prop for your set of circumstance, have a look at http://www.mh-aerotools.de/airfoils/javaprop.htm You can use the gadget to size the prop to suit your own requirements, the only problem is there ain't anyone out there who will offer you an off the shelf prop to perfectly match your specification, but it will at least allow you to ask the correct questions and pick a prop that is gonna get close to what you want. Pete
