Cat designs for scratch builders

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  • Jeff Wohlt
    Fast Electric Addict!
    • Jan 2008
    • 2716

    #61
    Can we get a set from oyu e-mailed? Is it tiled plans or what.

    I want a winter project to build a new cat with twins, etc.
    www.rcraceboat.com

    [email protected]

    Comment

    • lomdel
      Senior Member
      • Nov 2008
      • 708

      #62
      Originally posted by Jeff Wohlt
      Can we get a set from oyu e-mailed? Is it tiled plans or what.

      I want a winter project to build a new cat with twins, etc.
      PM me and I'll e-mail...

      Comment

      • ODIE105
        Member
        • Oct 2009
        • 39

        #63
        Thank you all for the plans you have sent me as well as your advice. This will help me a lot. I plan on posting pix as soon as I start. any advice you give is more then welcome.

        Comment

        • obrien
          Fast Electric Addict!
          • Nov 2007
          • 1264

          #64
          I haven't read all of the comments in this thread, but there are some other points that may have been missed. When it comes to the running surfaces, you can look at changing the angles of attack. Another thing to look at is in the tunnel, you can can change the shape of the tunnel to increase compression.

          Just a couple of ideas to think about.

          Comment

          • ODIE105
            Member
            • Oct 2009
            • 39

            #65
            OK I got a lot of plans from every one. I chose the one that i thought would work for me. i took the plans to staples and had them blowen up to 70'' then got the supplies and started the project. however do to the lady at staples messing up the process of blowening up the plans do to the large size, non of it came out right. so when i started to cut the wood for the hull i found some of the parts were the wroung size for each other. so iam back step 1 and starting over, now i got to find a store that can blow up the planes the right way.

            Comment

            • ODIE105
              Member
              • Oct 2009
              • 39

              #66
              HI agian for a 72'' cat what wood should I use??

              Comment

              • NativePaul
                Greased Weasel
                • Feb 2008
                • 2760

                #67
                At 72" I'd make it all from ply apart from the bits that have heavy double curvatures, I'd carve them from balsa then cover with glass.
                Paul Upton-Taylor, Greased Weasel Racing.

                Comment

                • Simon.O.
                  Fast Electric Addict!
                  • Oct 2007
                  • 1521

                  #68
                  Originally posted by ODIE105
                  HI agian for a 72'' cat what wood should I use??
                  72" That is big !! What are your power plans and what are your performance plans. Do you want a fun pond runner or a wicked SAW boat. What do you have now as far as components and what do you want (willing) to spend.
                  A 72"cat is going to cost to even get going, let alone fast.

                  If you have the plans then open a new build / discussion thread and the help will come.
                  See it....find the photos.....sketch it it....build it........with wood

                  Comment

                  • Jeff Wohlt
                    Fast Electric Addict!
                    • Jan 2008
                    • 2716

                    #69
                    I think something that big would be much cheaper and easier to tune with Gas engines....much cheaper! Even twin Zenohas would be cheaper and gtd 40+ mph and up.
                    www.rcraceboat.com

                    [email protected]

                    Comment

                    • Jesse J
                      scale FE racer
                      • Aug 2008
                      • 7115

                      #70
                      Originally posted by ODIE105
                      OK I got a lot of plans from every one. I chose the one that i thought would work for me. i took the plans to staples and had them blowen up to 70'' then got the supplies and started the project. however do to the lady at staples messing up the process of blowening up the plans do to the large size, non of it came out right. so when i started to cut the wood for the hull i found some of the parts were the wroung size for each other. so iam back step 1 and starting over, now i got to find a store that can blow up the planes the right way.
                      If you want, I can send you the set of plans I have scaled to 72" (inside my computer). This one is scaled for 1/4" ply (try to see if your lumber yard carries a good quality ply - preferably 5ply and sanded). These plans require no thinking for the Staples people, just a 36" wide plotter.

                      PM me if interested, this may reduce your complications while you ponder the other comments about powering etc.

                      J
                      "Look good doin' it"
                      See the fleet

                      Comment

                      • Jeff Wohlt
                        Fast Electric Addict!
                        • Jan 2008
                        • 2716

                        #71
                        I did not know Staples had those. Great! Need to get the 36" printed. Still considering the guy that does the cutting for a clean easy build.
                        www.rcraceboat.com

                        [email protected]

                        Comment

                        • MrEvoMan
                          Member
                          • Jun 2009
                          • 48

                          #72
                          Originally posted by ODIE105
                          Thank you all for the plans you have sent me as well as your advice. This will help me a lot. I plan on posting pix as soon as I start. any advice you give is more then welcome.
                          I would as well love some plans! I have build a shockerman cat already, but looking for something a little more streamlined like a mystic C5000.

                          Comment

                          • RandyatBBY
                            Fast Electric Addict!
                            • Sep 2007
                            • 3915

                            #73
                            Originally posted by obrien
                            I haven't read all of the comments in this thread, but there are some other points that may have been missed. When it comes to the running surfaces, you can look at changing the angles of attack. Another thing to look at is in the tunnel, you can can change the shape of the tunnel to increase compression.

                            Just a couple of ideas to think about.
                            On really big boats more compression is good to lift the rear of the boat. On small boats I reverse the compression and blow out the back. On my new SC 26 for SAW's I did this. The boat ran for the first time on 8S at the saws. Wilmer and myself were dialing it in this year. It only did a average of 61MPH but for it first runs it did good.
                            Great thread I have been reading from time to time.
                            Randy
                            For ABS, Fiberglass, Carbon hulls and Stainless hardware
                            BBY Racing

                            Comment

                            • lonewolf
                              Senior Member
                              • Jul 2007
                              • 658

                              #74
                              Streamlined sonething like the blue one??? Oh plan on seeing a build this winter my 4o+ n cat build heck even a few pics from from non boat builds.
                              http://forums.offshoreelectrics.com/...ead.php?t=3413.
                              Twin cat 9xl,... 29 titan 8xl,....37 in mono kb48 8xl.... 42 in twin elc cat project... 42 in gasser cat 260 modded zenoh''' planes and trucks....

                              Comment

                              • ODIE105
                                Member
                                • Oct 2009
                                • 39

                                #75
                                this is going to be a long trem P/j so I PLANE on going Big at lest 70 mpa. but iam new to electronics and boat building so it will take some time. i hope to be done in 6 month's. first i will build the hull out of wood then make a mold out of it. i will keep the wood hull and finsh it but have a fiber glass plug as a back up just in case. any advice you can give is more thin welcome and i was thinking of useing twin 1/8th scale Mamba Monster Brushless moters with lipo

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