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  1. B

    Which pitch?

    In an attempt to achieve better fuel ecomony with a heavier load for my boat: 26' Wellcraft Aft Cabin 260 - 1986 Merc 7.4 454 Alpha One Drive 5000-6000 lbs 4500 - 5000 RPM WOT I have decided to go from a 3 blade to 4 blade prop. A prop professional had strongly suggested I go from my 3 blade...
  2. B

    4 Blade Prop?

    Hello, I'm looking to increase planning ability on my boat. The boat has a Merc 7.4 330HP with an Alpha One and weighs about 5000 lbs dry. Currently it has a steel 3 blade quicksilver mirage 17 pitch. My boat planes fine with one or two passengers at about 4200 - 4600 RPM trimmed with a top...
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