Getting out of the hole and on plane



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  • Getting out of the hole and on plane

    My old boat was a 22' Crestliner cuddy aluminum with a 185hp mercruiser. When I gunned it to plane, it would rare up where I couldn't see over the bow then after awhile settle into a nice plane. I couldn't trim it up much or it would cavitate. The helm was behind the cab on this boat.

    My new HC Alaskan 260, mid-cab, with twin Honda 135/s, counter rotating, takes maybe 2-3 seconds to be on full plane. It doesn't rare up at all, just seems to rise up maybe a foot in the front and it's planing. I adjust the motor trim to get the fastest speed without cavitating, and we're off. I am just amazed at this quick planning, and I'm not powered all that high. The helm of this boat is in the front area of the cabin, maybe it's just a matter of perspective that it doesn't seem to rise much??

    I think my power is fine, cruise 28-30 mph at about 4k rpm, get 3.0-3.5 mpg, maybe a little less with a big load and heavy seas.

    Is this typical of you other HC owners, esp the AK series? My boat does seem a bit bow heavy when sitting in the water, even with those big motors hanging on the extended transom. I think that is typical for this boat. My boat seems to perform great in all conditions, but it is weird to be on instant plane, am I missing something or is this just a great setup?:confused:

  • #2
    If you're missing something then so am I. Your description is what I experience. I don't have counter rotators and only running twin 115s so your cruise speed is a little higher then mine at that RPM. I'm extremely pleased with my boat. like you said a little bow heavy but overall good all around boat for a decent price.


    • #3
      out of the hole

      Mine does as you suggest however I am reluctant to goose it and use the power tilt-n-trim as well as the trim tabs to provide a smooth take off. I have twin 150 yami`s as I found the 115`s just a little anemic with the gear I carry.


      • #4
        Looks like I got the right setup

        OK, looks like we all go to instant plane. I wondered about getting the counter rotating, my dealer was really nice but a bit underinformed on a lot of questions I had. So, I asked for it and it seems fine. I have no idea if it performs better than two same rotating.

        I am running 16x17 stainless props on the boat, have a set of 15 1/2 x 17 aluminum props for spares. Some guys have told me to run the aluminum if you EVER might hit a rock, as they will tear up before the lower unit. do I already know that is true??

        In my old boat, prop pitch was critical to performance, maybe it's the prop pitch that makes you a little slower, Hewey260? I would think with 115's you might be running smaller or lower pitch props?



        • #5
          I run a 13.5 x15 3 blade stainless in the salt and when I ran the Yukon and for heavier loads I run a 13.75 x 15 4 blade Alum. This set up worked great on the Yukon getting me on plane quick with the load of meat, fuel and gear.


          • #6
            Hewey that would explain it...

            Your prop setup sounds right for you and would give a little less speed at the same rpm than mine. Lots of motor options keep getting discussed, but the right prop can make different setups perform well.

            I did the 4-blade aluminum on my old boat for those same reasons, it really got me out of the hole better with a load than the 3 blade, but didn't have as much bite at the higher speed/rpm. But a nice tradeoff for both of us for what we were trying to do.

            I also had a problem cavitating with the old boat and 3-blade when I would get into the Valdez Harbor area with the heavy glacial silt concentration, and the 4-blade never did that. If you were running glacial rivers with your 4-blade that probably made a difference too.



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