MHZ 54" catamaran help needed

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  • fweasel
    master of some
    • Jul 2016
    • 4281

    #16
    Catamaran hulls do not handle better in the wind and waves vs. a V-bottom mono hull. Cats hulls ride on a cushion of air with less hull is in the water, which is why they are faster than V-bottom monos and don't require as much power to push them along. The downside is that they are susceptible to blow overs, which can happen with too much speed, incorrect setup, or windy conditions. Waves, forget about it, cats don't like waves. V-bottoms do a better job of cutting through rough water and have less issues in wind.

    I wasn't trying to start a debate about cats vs. other hulls. My main point was that the MHZ mystic cats in particular are a real handful to steer until they're up on plane and running on top of the water. Plenty of fun can still be had with one, even if it's not running on the bleeding edge of SAW performance envelops.

    My favorite cat hull for just general use is a single or twin motor 34" TFL Cheetah. That boat turns on a dime, sometimes too sharp if you're using too much rudder throw or too long of a rudder blade, and handles rougher water favorably, within reason.
    Vac-U-Tug Jr (13mph)

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    • vvviivvv
      Fast Electric Addict!
      • May 2009
      • 1078

      #17
      Originally posted by Panther6834
      Not trying to hijack Toberi's thread...so, of you prefer to answer via PM, go ahead (tho, I suspect, others reason this thread, and my question, might be 'interested').

      If the MHZ Mystic is best suited for SAW, what large-scale cat hulls would you suggest/recommend for a twin "just for fun" pleasure/bashing boat? In other words, something with a strong/sturdy enough hull that can handle higher speeds (tho, it would never be used for top-end speeds), but is also designed to be highly maneuverable (ie. turns in both directions equally well, whether the turn is 'gradual', or somewhat (but not necessarily 'extremely') sharp?


      ~ More peace, love, laughter, & kindness would make the world a MUCH better place
      Tbh, a mhz mystic corners a lot better than a hpr, build it light and it will handle a lot better.
      Hpr 06 / 09 / 150 /185, Mhz Skater H45 hydro.
      Uk SAW record holder

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      • Panther6834
        Senior Member
        • Apr 2020
        • 708

        #18
        Originally posted by vvviivvv
        Tbh, a mhz mystic corners a lot better than a hpr, build it light and it will handle a lot better.
        I was actually asking/hoping for multiple models to be suggested...but.....

        Originally posted by fweasel
        My favorite cat hull for just general use is a single or twin motor 34" TFL Cheetah. That boat turns on a dime, sometimes too sharp if you're using too much rudder throw or too long of a rudder blade, and handles rougher water favorably, within reason.
        Thank you...that answers my question. And, truth be told, the Cheetah is something I was already thinking, and considering...albeit as an eventual replacement for my Skater X2. At the same time, my previous question was in hopes of finding something larger...essentially, something 'like' the Cheetah, only longer & wider (ie. a "scaled-up" version in the 45-50" range, that is equally wider).


        ~ More peace, love, laughter, & kindness would make the world a MUCH better place
        Last edited by Panther6834; 10-03-2023, 09:29 AM.

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        • Peter A
          Fast Electric Addict!
          • Sep 2012
          • 1486

          #19
          Thank you...that answers my question. And, truth be told, the Cheetah is something I was already thinking, and considering...albeit as an eventual replacement for my Skater X2. At the same time, my previous question was in hopes of finding something larger...essentially, something 'like' the Cheetah, only longer & wider (ie. a "scaled-up" version in the 45-50" range, that is equally wider).
          There is a Cheetah XL.
          NZMPBA 2013, 2016 Open Electric Champion. NZMPBA 2016 P Offshore Champion.
          2016 SUHA Q Sport Hydro Hi Points Champion.
          BOPMPBC Open Mono, Open Electric Champion.

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          • Panther6834
            Senior Member
            • Apr 2020
            • 708

            #20
            Originally posted by Peter A
            There is a Cheetah XL.
            I had forgotten about that. Toberi, this is the answer to both of our questions. Whereas, most race catamarans have a length-to-width ratio of 3.5-4:1, and SAW cats can have a tail as high as 4.5:1, the Cheetah XL (at 39.75") has a wider, more stable, 2.66:1. By comparison, the DF Explorer 36 is 3.34:1, and the TFL Genesis is 3.79:1 (forget any of the hills from KVA...as I understand it, they're definitely on the "heavy" side).

            I don't know why...but, for some reason, I still want to try building a twin jet-drive cat...just haven't found the 'right' hull.


            ~ More peace, love, laughter, & kindness would make the world a MUCH better place

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            • Bande1
              Senior Member
              • Mar 2023
              • 684

              #21
              best handling cats
              rico hulls
              AC hulls

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              • srislash
                Not there yet
                • Mar 2011
                • 7673

                #22
                Originally posted by Bande1
                best handling cats
                rico hulls
                AC hulls
                Particularly the R42. Handles rough water very well and very predictable. This is mine with custom hatch
                B5A393E9-1DE5-40EF-82BC-A7D2841F60C4.jpg

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                • srislash
                  Not there yet
                  • Mar 2011
                  • 7673

                  #23
                  Originally posted by Toberi
                  Hmm do I hijack my own thread by also asking? Good question... I live by the sea, not a lake. The small experience I have is the catamaran hulls is way better due to wind and waves, good stability. fweasel have a point on the instability on the flying part when it's actually in the air, I also had some experience on that. May it rest in peace...


                  If you are looking to battle in the rough seas, one would target lower speeds (30-40mph). So say build a 12s boat and run it on 6s on rough days. On nice calm ones you can rip it up and on rough you can play, and likely with a real good runtime. As long as 6s jumps it up on plane you’ll be good to go without having to worry about hitting the throttle to hard and blowing it over.

                  I have a couple boats setup in this manner

                  Shawn
                  Last edited by srislash; 10-04-2023, 09:12 AM.

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                  • srislash
                    Not there yet
                    • Mar 2011
                    • 7673

                    #24
                    Originally posted by Panther6834
                    Not trying to hijack Toberi's thread...so, of you prefer to answer via PM, go ahead (tho, I suspect, others reason this thread, and my question, might be 'interested').

                    If the MHZ Mystic is best suited for SAW, what large-scale cat hulls would you suggest/recommend for a twin "just for fun" pleasure/bashing boat? In other words, something with a strong/sturdy enough hull that can handle higher speeds (tho, it would never be used for top-end speeds), but is also designed to be highly maneuverable (ie. turns in both directions equally well, whether the turn is 'gradual', or somewhat (but not necessarily 'extremely') sharp?


                    ~ More peace, love, laughter, & kindness would make the world a MUCH better place

                    A bit of a flat ride pad would help slow maneuvers. Hydro&Marine may have something, and MHZ has other offerings.

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                    • Panther6834
                      Senior Member
                      • Apr 2020
                      • 708

                      #25
                      Originally posted by srislash
                      A bit of a flat ride pad would help slow maneuvers. Hydro&Marine may have something, and MHZ has other offerings.
                      My question (which the Op was also interested in) wasn't about building a "slower" cat...it was about building a more "stable" cat, which would also allow it to be more maneuverable.

                      Bande1 mentioned hulls from Rico & AC, to which you referenced the R42 from AC. After checking them out, as well as some others, I'm thinking either AC hull, as well as the M-1 Supercat XL from H&M are better choices than the Cheetah XL. I like that both AC hulls have a wider length-to-width ratio (ie. more stable) than the M-1...but, I'm now familiar with H&M's superior quality (H&M hulls are among the best you can buy), whereas I know nothing about AC.

                      At the same time, a 50"L x 17.3"W cat is longer than most anyone might want. I need more info on the R42, so I've emailed them. Bande1, if you're interested, once AC replies, I can PM you the info.


                      ~ More peace, love, laughter, & kindness would make the world a MUCH better place
                      Last edited by Panther6834; 10-05-2023, 02:08 AM.

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                      • Bande1
                        Senior Member
                        • Mar 2023
                        • 684

                        #26
                        AC hulls pretty much sweep the gas cat class in racing.

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