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1/8th Scale Hydro Build

Discussion in 'Boat Build Projects' started by Tombsy, Feb 7, 2014.

  1. Tombsy

    Tombsy Boat Racing Fanatic
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    Forgot I drilled and tapped an aluminum mounting plate for the turnfin that was epoxied in.
    [​IMG]


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  2. Tombsy

    Tombsy Boat Racing Fanatic
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    Got the bottom all sealed up on the Sport 40. I tracked down a Mac .45 for it thats on it's way and I already have a pipe that should work pretty well.

    [​IMG]
     
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  3. Tombsy

    Tombsy Boat Racing Fanatic
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    Finished sheeting the top and now laying out with the dummy motor to figure out the flex shaft and other hardware.

    [​IMG]
     
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  4. Tombsy

    Tombsy Boat Racing Fanatic
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    Sand, sand, sand, and trimmed the cowl/hatch to fit. Under NAMBA rules for sport 40 the pipe must be covered, this cowl doesn't have a turbine tube so the exhaust will have to come out through the transom.
    [​IMG]


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  5. Antho11

    Antho11 Studio Forums Elite
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    Is that a nitro engine because it looks wicked? It also looks like there's a drill bit attached to it, or is it just the angle of the picture? Awesome work!
     
  6. Tombsy

    Tombsy Boat Racing Fanatic
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    It is a nitro engine, not the one I'll be using but similar size .45. Good eye it is a drill bit stuck in the collet to get the angle of the flex shaft where it will go through the bottom of the boat. It sure would make a wild drill with 4hp at 30,000rpm. It will be the same setup as my fiberglass sport 40 boat. [​IMG]


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  7. Antho11

    Antho11 Studio Forums Elite
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    That would be a really cool drill, it reminds of this video I saw a couple weeks ago. This guy has some cool nitro videos on his channel.
     
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  8. Tombsy

    Tombsy Boat Racing Fanatic
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    I think this Sport 40 is finally ready for paint, all the holes are drilled for hardware, cowl mounts, pipe mounts, finished the radio box, mounted a remote needle, lots of misc stuff.[​IMG][​IMG][​IMG]


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  9. RustyWrench

    RustyWrench ...I Always Edit...
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    Where do you find the time??? She is going to be Beautiful I can tell already.



    Dean
     
  10. Tombsy

    Tombsy Boat Racing Fanatic
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    Back from fishing and managed to get some epoxy primer on the sport 40. I've got a few new colours of Klass Kote epoxy paint so I should be able to come up with something.[​IMG]


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  11. Tombsy

    Tombsy Boat Racing Fanatic
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    The cowl is yellow, I should be able to paint the rest blue tomorrow. Starting to get the hang of this lph spray gun but still learning.
    Proboat's new hydro stole my colour scheme lol.
    [​IMG]
    [​IMG][​IMG]


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  12. Antho11

    Antho11 Studio Forums Elite
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    Blue and yellow is always a good choice.
     
  13. Tombsy

    Tombsy Boat Racing Fanatic
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    The blue went pretty well, 3 coats of Klass Kote epoxy paint. I'm just going to clear coat the interior and I can put this thing back together. :)
    [​IMG]


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  14. Tombsy

    Tombsy Boat Racing Fanatic
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    Finally it's ready to test, there were lots of little things to finish off but I think it's ready to go.
    I still have to get back to work on the electric 1/8 scale and fix up the Smokin Joes but stay tuned for a new boat build that should be easy, really cheap and they look like a lot of fun.
    [​IMG][​IMG][​IMG]


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  15. wisdom

    wisdom Studio Forums Elite
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    I haven't done the boat thing yet. But that is some fine craftsmanship.
     
  16. RustyWrench

    RustyWrench ...I Always Edit...
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    Looks real nice. I can't see any flaws in the paint. I have always been skeptical about a blue boat on the water, but that yellow top should be more than visible enough...



    Dean
     
  17. Tombsy

    Tombsy Boat Racing Fanatic
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    Testing went great, after some playing with the needle and pipe length she was rocking and really planted to the water. I might even adjust the strut a bit to loosen it up a bit. But I'm really happy this boat will be a contender at the next race and my AC boat will be retired I guess.
    Not enough hands to get any video unfortunately even when buddy's .90 rigger hit the rocks at 50 per and almost hit his truck. Spectacular lol. If glow fuel ignited it would have been quite a fireball.


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  18. Tetefroid

    Tetefroid New Member

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    I'm not sure if this thread is totally dead but, I'm getting some great info here, I have a question, I recently picked up a Dumas kit, and I don't want to use the forms from the kit, but copy them onto 1/8th birch ply, but how does one go about cutting out 1/8 ply patterns? What tools is best for that? Thanks.
     
  19. Tombsy

    Tombsy Boat Racing Fanatic
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    Not dead just sidetracked :).
    I would trace the parts on the ply then you can use a regular jigsaw or scrollsaw if you have it to cut them out roughly. Then sand up to your lines, some sort of power sander will really help. I have a Rigid oscillating belt sander, one of the best tools I've purchased if you think you might build more boats it's a real timesaver. But a palm sander would probably work for your forms. These bar sanders with stick on sandpaper are excellent as well I use them all the time.[​IMG]


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  20. Tetefroid

    Tetefroid New Member

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    I will have to add those sanders to my list of wants. I was hoping you wasn't going to tell me to just fire up my (non-exsistant) CNC machine, thank you. But on that note: What do you know about routers and those pattern bits? Can one get those small enough for 1/8" ply? Thank you for replying. o7
     

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