Bravo one cracked blade.
12-18-2018 | 06:54 AM
#42
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Joined: Jun 2005
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From: Central IL
There was a vid floating around some years back of a boat (cat?) throwing a blade while running and the GoPro picks it up perfectly as it launches skyward. Can't remember if it included a still of it or a slow motion section showing the blade taking orbit. I just remember thinking if this was a poker run I'd hate to be behind that boat and catch that blade in the teeth.
12-18-2018 | 12:13 PM
#43
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Joined: Dec 2009
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From: Wyandotte, MI
Bravo Castings are porous (pretty sure I spelled that wrong). I threw a blade on my 22p Bravo prop on one of my Optimax 225s. I am running them near surfacing, so fatigue is going to happen when twisting and flexing a cast prop...…. I actually thought I had a fouled plug and ran the boat the entire weekend, only realized it was a blade when I pulled the boat out after the 4th of July holiday weekend. I only lost about 1/3rd of the blade.
12-18-2018 | 12:27 PM
#44
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That was the second year I owned the boat. It was never a surfacing prop or abused other than a few occasional rough spots.
The other was still on the boat when I sold it, at ~500 hours.
12-18-2018 | 12:27 PM
#45
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There was a vid floating around some years back of a boat (cat?) throwing a blade while running and the GoPro picks it up perfectly as it launches skyward. Can't remember if it included a still of it or a slow motion section showing the blade taking orbit. I just remember thinking if this was a poker run I'd hate to be behind that boat and catch that blade in the teeth.
12-18-2018 | 12:28 PM
#46
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Joined: May 2001
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Bravo Castings are porous (pretty sure I spelled that wrong). I threw a blade on my 22p Bravo prop on one of my Optimax 225s. I am running them near surfacing, so fatigue is going to happen when twisting and flexing a cast prop...…. I actually thought I had a fouled plug and ran the boat the entire weekend, only realized it was a blade when I pulled the boat out after the 4th of July holiday weekend. I only lost about 1/3rd of the blade.
12-20-2018 | 12:59 PM
#48
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Joined: Mar 2002
Posts: 2,142
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From: Miami Beach
Applies to all mercury props lately not sure what the problem is over there. I had a 24 Maximus and bought another one, several years apart, they were both "stock" but two completely different props. I sent back a pair of ECO Enertias, they were full of voids in the casting.
12-20-2018 | 08:35 PM
#50
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Joined: Jan 2003
Posts: 6,018
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From: Grand Rapids, MI
Probably would be better castings if made in China. Their foundry is in Wisconsin.
"Stainless Steel Performance
At Mercury Marine's propeller foundry in Fond du Lac, Wisconsin, magic happens 24 hours a day. Through unmatched engineering, design, and innovation, molten metal is transformed into the highest-quality, best-performing, and best-selling marine propellers in the world. Our experience and expertise – along with proprietary technologies such as Flo Torq®, the X7 Alloy®, and PVS (Performance Vent System®) – give Mercury props a true competitive advantage."
"Stainless Steel Performance
At Mercury Marine's propeller foundry in Fond du Lac, Wisconsin, magic happens 24 hours a day. Through unmatched engineering, design, and innovation, molten metal is transformed into the highest-quality, best-performing, and best-selling marine propellers in the world. Our experience and expertise – along with proprietary technologies such as Flo Torq®, the X7 Alloy®, and PVS (Performance Vent System®) – give Mercury props a true competitive advantage."
