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  1. U

    EA81 Propeller Bolt pattern / size?

    Thank you both for your input. This is a much smaller bolt pattern which I measured at 3" however, I believe it is the 75mm (2.95") "Rotax" pattern. I am still trying to determine if I can just replace the Aluminum mounting hub.
  2. U

    EA81 Propeller Bolt pattern / size?

    Hello all, Greetings from Mays Landing, Southern Jersey. I have an EA81 powered Airboat that's got a 2 blade 60" Wood Prop. I drove 7 hours round trip to purchase a 3 blade Composite ground adjustable propeller because the dimensions provided by the seller were the same ... so I thought. The 6...
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