The anti vortex tip concept isn't lost on me and I admire Indigo developing the product.
It's appearance looks like the prop on a WW2 plane wreck. Here's a pic of a crashed F4U, one of my favorite dive sites. Check out the one visible prop tip, clear evidence the prop was turning when she went in.
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Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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