Help me build a Sniper 45"

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  • kevinpratt823
    Fast Electric Addict!
    • Aug 2012
    • 1361

    #1

    Help me build a Sniper 45"

    First of all, thank you all for the valuable input that has greatly accelerated my brief learning curve with boats, I hope some of the seasoned vets will help me along with my first attempt at building from a bare hull. It has been 4 mos, and I have 6 boats now, what have I gotten myself into...........
    Before anybody says it, I DO use the search feature, in fact I've spent hours using it to get where I am already. That being said, I still have many questions and not enough time weed through and answer them all, and if I'm asking here, then I'm already searching as well.

    I am lucky enough to be local to OSE, and since I've been going in there, there has been a DF Sniper 45" hull on the top rack, collecting dust(literally). It has some very minor cosmetic damage, so Steven said he'd let it go cheap($100) I thought it was a shame to let it just sit there, so today it finally came home with me Also have a Castle 2028 and Hydra Ice 200HV on the way from a member, and I have a spare 1/4 scale steering servo from my Losi 5ive-T.

    I am starting this thread, hoping some of you will help me along on the build, and it will be more questions/advice for me than a build thread. If mods want to move it to Q and A forum that's fine.

    First up, I intend to lay in some carbon Kevlar from Kintec, I think I've got enough info from searching to do that. The hull did not have stringers installed, though, and that is where I'm a bit undecided.

    ***If I go with wood stringers, does it need to be a certain type, or just standard Home Depot stuff? Should I do the complete carbon lay-in before stringers or anything else? How shall I go about installing them, it appears I would rough cut the shape, assemble with a motor mount, then fit to the hull befor finally epoxying/glassing, sound right?

    Also thinking of carbon fiber stringers, but the sheets from Kintec only come in 300mm lengths I believe. Any advice on doing my stringers is welcome, ordering the carbon weave now..... SAM_0144.jpgSAM_0143.jpg
    My private off road rc track
    https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8
  • dana
    Banned
    • Mar 2010
    • 3573

    #2
    Laying the carbon in first will make putting stringers in a heck of ALOT easier

    Comment

    • dana
      Banned
      • Mar 2010
      • 3573

      #3
      You can get thin plywood at craft stores like a.c. Moore. You can also laminate carbon to it to add strenth

      Comment

      • kevinpratt823
        Fast Electric Addict!
        • Aug 2012
        • 1361

        #4
        Originally posted by dana
        You can get thin plywood at craft stores like a.c. Moore. You can also laminate carbon to it to add strenth
        Didn't even think of that, thanks.
        My private off road rc track
        https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

        Comment

        • dana
          Banned
          • Mar 2010
          • 3573

          #5
          Not sure if they will have pieces long enough for what you need, been a while since I've rummaged thru their stock.

          Comment

          • kevinpratt823
            Fast Electric Addict!
            • Aug 2012
            • 1361

            #6
            Is it safe to say that a hull this size, with this big motor and 4 big lipos, NEEDS to have stringers/rails?(for rigidity/support) Or could it be built another way? All the pics of builds on this hull have rails, then there's the issue of a mount that fits this motor, most of the ones I have researched use rails.
            My private off road rc track
            https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

            Comment

            • srislash
              Not there yet
              • Mar 2011
              • 7673

              #7
              Originally posted by kevinpratt823
              Is it safe to say that a hull this size, with this big motor and 4 big lipos, NEEDS to have stringers/rails?(for rigidity/support) Or could it be built another way? All the pics of builds on this hull have rails, then there's the issue of a mount that fits this motor, most of the ones I have researched use rails.
              I have a DF 35" and have found that the deck and hull flex quite a bit.Actually to the point of cracking my hatch.Granted this was when I was first setting it up and it was bouncing all over the place. BUT,With this motor/battery combo you may want to do some additional bracing,maybe like an AC Lazer(which I happen to have here). Pics in a moment.

              Comment

              • lenny
                Fast Electric Addict!
                • Sep 2010
                • 4294

                #8

                Hey check with Peter aka Punisher 67,
                He has 2 of them that he built so far that I know of.
                http://forums.offshoreelectrics.com/...uot&highlight=
                http://forums.offshoreelectrics.com/...ild&highlight=
                http://forums.offshoreelectrics.com/...un-10S-2230-1Y

                Make sure you get some good videos of it when done.
                ? ONLY IF THEY WORK

                My youtube videos.http://www.youtube.com/user/61manx?feature=mhee

                Comment

                • Doug Smock
                  Moderator
                  • Apr 2007
                  • 5272

                  #9
                  Originally posted by kevinpratt823
                  Is it safe to say that a hull this size, with this big motor and 4 big lipos, NEEDS to have stringers/rails?
                  Absolutely.
                  MODEL BOAT RACER
                  IMPBA President
                  District 13 Director 2011- present
                  IMPBA National Records Director 2009-2019
                  IMPBA 19887L CD
                  NAMBA 1169

                  Comment

                  • srislash
                    Not there yet
                    • Mar 2011
                    • 7673

                    #10
                    Sorry about the mess of a hull there but it was a freebee

                    Comment

                    • kevinpratt823
                      Fast Electric Addict!
                      • Aug 2012
                      • 1361

                      #11
                      Hopefully my red carbon weave will be here tomorrow and I can lay it in this weekend. Can I use 3/16" birch plywood for stringers and bracing? And is 5" rail spacing the standard on a hull this size, or does it really matter? I wouldn't mind getting the rails built and installed this weekend as well......
                      My private off road rc track
                      https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

                      Comment

                      • srislash
                        Not there yet
                        • Mar 2011
                        • 7673

                        #12
                        Originally posted by kevinpratt823
                        Hopefully my red carbon weave will be here tomorrow and I can lay it in this weekend. Can I use 3/16" birch plywood for stringers and bracing? And is 5" rail spacing the standard on a hull this size, or does it really matter? I wouldn't mind getting the rails built and installed this weekend as well......
                        I think birch ply is good,I know that is what Andy(AC Boats) uses.I believe 5" is standard.I have two motor mounts coming for my Dumas and they are both for 5" rails.

                        Comment

                        • RaceMechaniX
                          Fast Electric Addict!
                          • Sep 2007
                          • 2821

                          #13
                          Take a look at the build thread I had a year ago: http://forums.offshoreelectrics.com/...100+mph+sniper
                          Tyler Garrard
                          NAMBA 639/IMPBA 20525
                          T-Hydro @ 142.94mph former WR

                          Comment

                          • kevinpratt823
                            Fast Electric Addict!
                            • Aug 2012
                            • 1361

                            #14
                            Originally posted by RaceMechaniX
                            Take a look at the build thread I had a year ago: http://forums.offshoreelectrics.com/...100+mph+sniper
                            Thanks, I have come across that thread before, nice build! Would you recomend the flooded tube/strut over a stinger?, how about the front motor mount?
                            I have also considered a flooded tube with a stinger, if it is even reasonable........
                            My private off road rc track
                            https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

                            Comment

                            • RaceMechaniX
                              Fast Electric Addict!
                              • Sep 2007
                              • 2821

                              #15
                              I prefer the flooded stuffing tube and strut, but if you slotted the stinger to allow for up and down movement on the transom then you can use it with a flodded stuffing tube. Steve Seebold is machining 1/4" stingers with slotted holes.

                              TG
                              Tyler Garrard
                              NAMBA 639/IMPBA 20525
                              T-Hydro @ 142.94mph former WR

                              Comment

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