The Black Pearl LSH Spec Hydro 2019

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  • TRUCKPULL
    Fast Electric Addict!
    • Apr 2007
    • 2971

    #16
    Pete
    The cowl at the front is flat across, and sticks out 3 1/2" from the base of the windshield, Even with the built in curvature it is still very flexible and can be taped down, With very slight pressure the front edge can be lowered up to about 3/4".

    Can you measure the gap height at the front with a "P" cowl on the LSH Hull, two see the difference.

    I think it will still work, the large flat areas on this cowl are fairly flexible.

    Larry
    Past NAMBA- P Mono -1 Mile Race Record holder
    Past NAMBA- P Sport -1 Mile Race Record holder
    Bump & Grind Racing Props -We Like Em Smooth & Wet

    Comment

    • Shooter
      Team Mojo
      • Jun 2009
      • 2558

      #17
      Larry,

      The hatch on the LSH boat is 112mm wide.

      The gap height is only about 5mm, so if your cowl is flexible it shouldn't have any problems fitting. Turns out that the LSH nose doesn't curve down aggressively until the portion in front of the hatch edge.

      Comment

      • TRUCKPULL
        Fast Electric Addict!
        • Apr 2007
        • 2971

        #18
        Hello Pete

        112mm wide is fine. The bubble width on this cowl at the widest point where it returns to the flat on each side is 95mm.

        I also did a test on this material.

        It can be adjusted very easily. I used a hobby heat gun, (Low Heat) With the front of the cowl (1" over the edge of my bench)

        Slight heat - Press the front down a little bit - let cool - Done.

        Here is a picture of a 1" wide flat strip that I did, to see how much I could move it, I think I could have made a circle out of it.

        Larry
        Attached Files
        Past NAMBA- P Mono -1 Mile Race Record holder
        Past NAMBA- P Sport -1 Mile Race Record holder
        Bump & Grind Racing Props -We Like Em Smooth & Wet

        Comment

        • Shooter
          Team Mojo
          • Jun 2009
          • 2558

          #19
          Nice Larry! Yes, I think it will work!

          I made a little more progress on the spec boat. Sanded the side face in prep for skin. I still pre-bend the skins with a heat gun prior to gluing. Reduces internal stresses and helps keep the boat straight IMO, but who knows!
          Attached Files

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          • Shooter
            Team Mojo
            • Jun 2009
            • 2558

            #20
            I originally planned for this interface frame to be sanded at an angle to sit flush with the main frame pcs. Since I'm using epoxy for the entire build I didn't bother sanding it to shape. Put this on the list of things NOT to do! Unfortunately, now it sits too proud. It will have to be sanded down a significant amount so the recovery pads are flat and do not have anhedral.
            Attached Files

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            • Shooter
              Team Mojo
              • Jun 2009
              • 2558

              #21
              I glued the sponson side skin. Also, used a curved lexan body scissors to trim the excess skin after the epoxy cured. Who'd a thunk it?? Sure beats sanding, and breathing dust. The less dust I breath, the more cigars I will be able to smoke!
              Attached Files

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              • T.S.Davis
                Fast Electric Addict!
                • Oct 2009
                • 6221

                #22
                Not sure if you have one of these Pete. Time saver for sure.

                https://www.lowes.com/pd/Kobalt-3-in...-Plane/4062649
                Noisy person

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                • Shooter
                  Team Mojo
                  • Jun 2009
                  • 2558

                  #23
                  That is a really cool little planer! Definitely worth $10!

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                  • T.S.Davis
                    Fast Electric Addict!
                    • Oct 2009
                    • 6221

                    #24
                    Easier than the Lexan scissors too.

                    I used to just drop onto the belt sander to cleave off lots a material. Potential for disaster was high. Potential reached multiple times.
                    Noisy person

                    Comment

                    • bikepilot
                      Junior Member
                      • Sep 2018
                      • 22

                      #25
                      Lookin great Pete! That's a first for the heat gun trick on the skins for me, do you dampin the skins first before applying the heat??
                      thanks brian

                      Comment

                      • Shooter
                        Team Mojo
                        • Jun 2009
                        • 2558

                        #26
                        Thanks Brian. No, I didn't dampen them, but I'm sure that would work even better.

                        Comment

                        • Shooter
                          Team Mojo
                          • Jun 2009
                          • 2558

                          #27
                          I decided to rip the sponson apart and start over. That interface piece was just too proud of the surface. Here is the difference between the old and new cut part (about 4mm at the crest of the curve).
                          Attached Files

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                          • Shooter
                            Team Mojo
                            • Jun 2009
                            • 2558

                            #28
                            I sanded the angle on the new parts and glued them in.
                            Attached Files

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                            • Shooter
                              Team Mojo
                              • Jun 2009
                              • 2558

                              #29
                              Sanded the side face again and glued the new sponson side. Take 2!!
                              Attached Files

                              Comment

                              • Shooter
                                Team Mojo
                                • Jun 2009
                                • 2558

                                #30
                                A little more work. Sanded the frame down and glued on the ride pad.
                                Attached Files

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