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You are correct. More blades = Less speed
Positives are = Better climb, lower noise, and less engine wear.
These are a wood core with laminate skin. They have a polycarbon leading edge that is easily replaced.
My motivation with these were to get rid of the hydraulic system so you can feather / unfeather without the engine running, less weight. I wanted better climb on one engine for safety reasons. At the cost of a few knots.
We are now two years into them. Blades are custom made in Austrialia.
Front
70"
Rear
68"
Anybody interested when we get them done? (1-2 more months)
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