Does Waxing a boat hull increase speed?

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  • Bduncan
    Senior Member
    • Jan 2013
    • 296

    #31
    I can see why the suction theory makes more sense with a mono.

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    • Fluid
      Fast and Furious
      • Apr 2007
      • 8011

      #32
      ...I have had my best runs with this Cheetah with a mirror bottom finish on the boat and a highly polished leading edge on the prop....
      How much faster was the mirror bottom compared to a sanded bottom? How much faster was the polished prop versus the prop with a satin finish? How long were the GPS runs?



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      • Bduncan
        Senior Member
        • Jan 2013
        • 296

        #33
        Like i said. i dont have the math to support it and in this case how would one compare
        polished or ruff anyway on same boat same conditions. But with this cheetah build by KFXGUY we were trying to set a gps record and i have probably 40 runs to offer my opinion. with all due respect I'm not going
        to engage in some EDIT contest on whether a cat runs better polished or not or a prop runs better in this hull polished or not. take it for what it's worth. But until someone posts a GPS run on video of a cheetah running 83 on 7s 86 on 8s, I'm gling with polished hull on FC Cheetah.
        Last edited by Doug Smock; 09-01-2015, 10:27 PM. Reason: Seriously???

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        • Bduncan
          Senior Member
          • Jan 2013
          • 296

          #34
          Fastest Fighter Cat Cheetah PERIOD!

          Comment

          • Doug Smock
            Moderator
            • Apr 2007
            • 5272

            #35
            Ahem...... Say it with me...... At the end of the day we are grown men playing with TOY boats.
            MODEL BOAT RACER
            IMPBA President
            District 13 Director 2011- present
            IMPBA National Records Director 2009-2019
            IMPBA 19887L CD
            NAMBA 1169

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            • Bduncan
              Senior Member
              • Jan 2013
              • 296

              #36
              gotcha my maritime brother

              Comment

              • properchopper
                rcgoatbuild@snotmail.com
                • Apr 2007
                • 6968

                #37
                Originally posted by Bduncan
                Like i said. i dont have the math to support it and in this case how would one compare
                polished or ruff anyway on same boat same conditions. But with this cheetah build by KFXGUY we were trying to set a gps record and i have probably 40 runs to offer my opinion. with all due respect I'm not going
                to engage in some EDIT contest on whether a cat runs better polished or not or a prop runs better in this hull polished or not. take it for what it's worth. But until someone posts a GPS run on video of a cheetah running 83 on 7s 86 on 8s, I'm gling with polished hull on FC Cheetah.




                NAMBA ( real actual SAW record speeds) :

                P Catamaran [ 4 cell] : 102.882mph * scuffed sponson bottoms
                Q Catamaran [6 cell] : 127.986mph scuffed sponson bottoms
                S Catamaran [8 cell] : 132.042mph scuffed sponson bottoms (your Cat unscuffed on 8 cells: 86mph)
                T Catamaran [10 cells] : 138.086mph * scuffed sponson bottoms
                {I have videos of all these}

                To be fair these speeds were not with Cheetahs. You can certainly claim the "apples to oranges" rule. The record catamarans were narrower and more banana-like. (*Maybe it was the Dinogy batteries)

                Also to be fair my current NAMBA P-Catamaran 2-Lap National Record was with my unscuffed* Cheetah .
                Last edited by properchopper; 09-02-2015, 12:14 AM.
                2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
                2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
                '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

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                • Bduncan
                  Senior Member
                  • Jan 2013
                  • 296

                  #38
                  what's your point? my mercedes goes 195

                  Comment

                  • Bduncan
                    Senior Member
                    • Jan 2013
                    • 296

                    #39
                    I'll bet you 5k you can't get a cheetah to
                    run 86.2

                    Comment

                    • keithbradley
                      Fast Electric Addict!
                      • Jul 2010
                      • 3663

                      #40
                      Originally posted by Bduncan
                      I'll bet you 5k you can't get a cheetah to
                      run 86.2
                      What a silly statement. Too bad it's an empty promise.
                      If you had a way to guarantee I'd get my $5k, I'd gladly take that challenge and change that number to 110mph.
                      Congrats on your boat, but if you're under the impression that nobody has gone faster than 86mph with a cheetah because they can't, you're sorely mistaken.
                      www.keithbradleyboats.com

                      Comment

                      • Ken Haines
                        Racer
                        • Jul 2007
                        • 647

                        #41
                        This entire thread has disintegrated into guys who have never tried something
                        arguing with racers that have done and seen the results in SAWs or oval racing.

                        This is why so many experienced racers have given up on offering suggestions here.
                        Because somehow others know better.....despite the facts that we know from competition.

                        Yes....sanded bottoms are better, faster and more stable in both turns and straightaways.
                        TenShock Brushless / Pro Marine
                        INSANE Boats / Rico Racing/ Castle Creations
                        2023, 2024 NAMBA & 2018 IMPBA FE High Points "National Champion"

                        Comment

                        • photohoward1
                          Fast Electric Addict!
                          • Mar 2009
                          • 1611

                          #42
                          Originally posted by TRUCKPULL
                          When Racing, it does not matter how fast your boat is in a straight line.

                          Larry
                          Good thing Larry because I have never seen you drive a straight line.

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                          • dasboata
                            Fast Electric Addict!
                            • Dec 2010
                            • 3152

                            #43
                            My tests back in the early 90 , I tilted a hull 45* I took a drop of water on the bow and timed it how long it took to the transom, I used wax, I used Teflon spray silicone spray and bare surface and a scuffed surface and scuff surface was the fastest I scuff and sharpen all my hulls ! with 220-400 grits,, lots you can do to improve a cats handling and top speed !!

                            Comment

                            • dasboata
                              Fast Electric Addict!
                              • Dec 2010
                              • 3152

                              #44
                              Originally posted by keithbradley
                              What a silly statement. Too bad it's an empty promise.
                              If you had a way to guarantee I'd get my $5k, I'd gladly take that challenge and change that number to 110mph.
                              Congrats on your boat, but if you're under the impression that nobody has gone faster than 86mph with a cheetah because they can't, you're sorely mistaken.
                              I can hold the money ?????

                              Comment

                              • jj2003
                                HIGH VOLTAGE ADDICT!
                                • May 2011
                                • 1501

                                #45
                                Originally posted by dasboata
                                I can hold the money ?????
                                I can watch you hand it over!
                                "If guns cause crime, all of mine are defective"
                                45"Speedfreek
                                , Fightercat #068 ​, MyYoutube Vids

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