P1 Puma RIB racing-scratch building

Discussie in 'Speedboten' gestart door Dim L, 3 okt 2021.

Pagina 13 van 19
  1. Dim L

    Dim L

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    Update #30: The outboard is finished :) :) :)!!!!!

    The beginning :
    IMG_20220117_083241.jpg

    The end:
    IMG_20220521_152402.jpg

    I love the result!
    Below I give you a number of photos with details and two videos.
    IMG_20220521_140757.jpg

    IMG_20220521_142139.jpg

    IMG_20220521_142640.jpg

    IMG_20220521_143247.jpg

    IMG_20220521_143323.jpg

    IMG_20220521_151530.jpg

    IMG_20220521_151545.jpg

    IMG_20220521_152419.jpg
     
    Dim L, 21 mei 2022
    #241
    Tamiya1970, Dirk Jan en Unusual RC vinden dit leuk.
  2. Unusual RC

    Unusual RC

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    Wow, I make a deep bow for this!
    Amazing achievement.
    Much better than any commercial available rc outboard.

    Maiden is in sight!
     
    Unusual RC, 21 mei 2022
    #242
    Tamiya1970 en Dim L vinden dit leuk.
  3. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
    Berichten:
    891
    Locatie:
    Athens, Greece
    More photos...
    IMG_20220521_162030.jpg

    IMG_20220521_162058.jpg

    IMG_20220521_162112_BURST001_COVER.jpg

    IMG_20220521_162516.jpg

    IMG_20220521_162510.jpg

    IMG_20220521_162524.jpg

    IMG_20220521_162528.jpg

    And two videos...


     
    Dim L, 21 mei 2022
    #243
    M.l.v.Doesburg, Taylorcraft en Unusual RC vinden dit leuk.
  4. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
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    Locatie:
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    Thank you Michael for you nice words... Now the question is its performance and durability...
    The maiden is indeed in sight but first I have to finish the rib...
     
    Dim L, 21 mei 2022
    #244
    Unusual RC vindt dit leuk.
  5. Dirk Jan

    Dirk Jan Forum veteraan

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    Great result indeed! Could you test it behind the Cozy F1? Maybe with a bigger bracket behind the transom.

    Just 1 tip: the water should enter the cooling jacket at the bottom and exit at the top. That way, it will fill completely with water.
    I made the same mistake with my outboard at first. In my T800 topic it is installed wrong as well
     
    Dirk Jan, 21 mei 2022
    #245
    Dim L vindt dit leuk.
  6. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
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    Thank you Jan:)!
    Yes I ll test it, it will be an interesting experiment. This is the benefit of the outboards, you can use them in various models.

    Oh thank you for the tip, you are right I wouldn't have thought about it. :thumbsup:
     
    Dim L, 21 mei 2022
    #246
  7. Dim L

    Dim L

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    Jan I was thinking that it would be nice idea to use the diy outboard on a scaled (probably 90%) version of your T800 cosy? What do you think, will it work?
    It is a great boat and your drawings are very tempting ;)
    !
     
    Dim L, 22 mei 2022
    #247
  8. Dirk Jan

    Dirk Jan Forum veteraan

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    Hi Dim, I'm sure that will work. 90% scaled is approx 74cm hull length.
    It might be on the large side for the 2960 motor. Maybe 85% scaled down is better (70cm hull length) a or in the future you could go to a 36 size motor.

    Your RIB is about 75cm right? It will be a nice test case for the power to weight ratio with the 2960 motor.
     
    Dirk Jan, 22 mei 2022
    #248
    Dim L vindt dit leuk.
  9. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
    Berichten:
    891
    Locatie:
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    Thanks Jan:thumbsup:!
    Yes, the hull is approximately 76 cm without the tubes... So i am at the upper tail of the distribution :confused:...
    Also notice that it is a deep v, much slower hull than the f1.
    So I guess you are right, it will be a nice test for the 2960 motor.
    My goal is to have the same outboard for two hulls: the rib for the sea and the f1 for the lake for top speed;).
    The 36 motor is always an option with a light modofication....
     
    Laatst bewerkt: 22 mei 2022
    Dim L, 22 mei 2022
    #249
    Unusual RC en Dirk Jan vinden dit leuk.
  10. Unusual RC

    Unusual RC

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    Maybe start with a propeller with less pitch for the RIB?
     
    Unusual RC, 22 mei 2022
    #250
    Dim L vindt dit leuk.
  11. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
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    Locatie:
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    Yes sure! My starting point will be a 36 mm 1.4 pitch propeller for the Rib and see how it runs...
     
    Dim L, 22 mei 2022
    #251
    Unusual RC vindt dit leuk.
  12. Tamiya1970

    Tamiya1970

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    Wow just wow ,Dim
    This is next level ,I love the boat and outboard.
    So much effort ,and that is visable .
    Looks like a factory build ,but then much better
     
    Laatst bewerkt: 23 mei 2022
    Tamiya1970, 23 mei 2022
    #252
    Dim L vindt dit leuk.
  13. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
    Berichten:
    891
    Locatie:
    Athens, Greece
    Thank so much Alex... :)...
    Indeed, I put so much effort on this project... and I am glad you can see it...
    I ve missed your posts ;)
     
    Dim L, 23 mei 2022
    #253
    Tamiya1970 vindt dit leuk.
  14. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
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    Locatie:
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    The painting of the cowl is finished. I only have to apply the stickers and the clear coat.
    IMG_20220523_111749.jpg

    IMG_20220523_111800.jpg

    IMG_20220523_111816.jpg
     
    Dim L, 23 mei 2022
    #254
    Carbohans, Tamiya1970, Unusual RC en 1 andere persoon vinden dit leuk.
  15. Dirk Jan

    Dirk Jan Forum veteraan

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    Great looking! I'm curious how you will finish the hull
     
    Dirk Jan, 23 mei 2022
    #255
    Dim L vindt dit leuk.
  16. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
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    Locatie:
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    Thanks Jan.... To he honest I haven't decided yet... but I saw that white as the basic background color gives very good painting results and more vivid colors.
     
    Dim L, 23 mei 2022
    #256
    Dirk Jan vindt dit leuk.
  17. Dim L

    Dim L

    Lid geworden:
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    Locatie:
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    Update #31: Waterproof cover + laminating the upper deck.

    I realized that it was difficult to waterproof properly the cowl with tape plus I didn t like the looks of it . Thus, I decided to make an extra cover to waterproof the inner of the hull.
    IMG_20220528_113508.jpg

    IMG_20220528_113524.jpg

    IMG_20220528_113534.jpg

    I don't like the extra grammars of the cover but I don't want water in my hull o_O.

    Finally, I laminated the upper deck with 50gr fiber... Next it's sanding... :confused:
    IMG_20220528_114953.jpg

    IMG_20220528_124843.jpg

    IMG_20220528_125004.jpg

    With the remaining of the epoxy resign I also laminated the cover...
    IMG_20220528_124849.jpg
     
    Dim L, 28 mei 2022
    #257
    Dirk Jan en Unusual RC vinden dit leuk.
  18. Unusual RC

    Unusual RC

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    I have seen many solutions in the past decades to make a fully waterproof hatch for fast RC boats.
    Till this day taping the seams shut is still the best concerning overal weight and complexity.

    I have had my boats go over 2,0 meters submerged (even my water-jet driven Recoil 26 is a good submarine when making a steering mistake).
    No issues with tape!
    Making an inner hatch is certainly the the best option concerning the looks.
    Finding the right color tape is not always possible for example.
     
    Unusual RC, 28 mei 2022
    #258
    Dim L vindt dit leuk.
  19. Dim L

    Dim L

    Lid geworden:
    18 aug 2021
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    Glad to hear Michael ;). I guess I made the right decision...
     
    Dim L, 28 mei 2022
    #259
    Unusual RC vindt dit leuk.
  20. Unusual RC

    Unusual RC

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    I agree on that!
    And certainly not a complex one either ;)
     
    Unusual RC, 28 mei 2022
    #260
    Dim L vindt dit leuk.
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