Optimum pitch near the hub can also be achieved by using prop
cuffs which Tracy
wound up adding. I consider prop cuffs essential for IVO props.
For new cowling designs a larger diameter spinner (19 inch) can
be used such as
found on the Nemesis Nxt. This blocks some of the less than optimum pitch
area of the blades.

Paul Lamar

Paul, do you have any pictures or diagrams of what a prop cuff looks like or
how they are attached?

Dave Leonard

Sure Dave. Here is a pictures I just took at OSH. Also some of Tracy's
cuffs. The loads are not very high so glue will probably work.

Paul Lamar
 
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