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Thread: RC Surfer


  1. #251

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    RE: RC Surfer

    LONGBOARDT3
    If you are looking to purchase an RC surfer, this is where I purchased mine.US $39.99
    http://www.1wholesaler.com/wholesale...x?ProductID=74

  2. #252

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    RE: RC Surfer



    hi all   just getting into rc surfing , can anyone advise me of any support for these in the uk . ie replacement parts   need  a better rudder  and



    would like to change the figure . love this site. keep posting inf for us brits


  3. #253

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    RE: RC Surfer

    jocktime

    thanks for the information. I have two questions for youstill:
    1) How much weight should I add? I will be surfing in NJ - waves are approx. 3 feet on average
    2) Where did you get the cool surf "dude"? I'm not sure I like the Lisa figure.

    Thanks

  4. #254

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    RE: RC Surfer


    ORIGINAL: TechyJoe

    LONGBOARDT3
    If you are looking to purchase an RC surfer, this is where I purchased mine.US $39.99
    http://www.1wholesaler.com/wholesale...x?ProductID=74
    thanks thanks thanks friend TechyJoe
    tonight I won a smooth rc surfer at a good price .... occasionally pass through the forum for help as a good rookie.
    a greeting from Spain and thanks again

    pd: forgiveness for my writing but I use a translator

  5. #255

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    RE: RC Surfer



    OK SURFN EXPERTS



    I have been reading a lot of the posts on this thread and I need to know WHAT THE DEAL IS with the ESCs.  I see many posts where builders are using huge 60-100amp ESCs. 



    I mostly fly planes which swing a 10x6 inch prop using brushless and never come close to 60 or 100amps.  Now this is my first boat so maybe I know nothing or am missing something here. But I know the prop is small and should draw little current (at least out of water). 



    So, to test, I connected my new EZ-Run 540 brushless to my 18amp ESC and then connected this to an amp meter and measured the current.  To represent a load on the motor (prop in water)  I wore a glove and placed pressure on the motor shaft with my finger to the extent of almost stopping the motor at full throttle and never broke 5 amps. 



    So, why the large large ESCs??????????? 




  6. #256
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    RE: RC Surfer

    On my two Board Sharks
    I run a 40 amp waterproof and water cooled ESC with a 2900kv brushless on one,
    and 100 amp waterproof and water cooled ESC with a 3600kv brushless on the other.
    The 40 amp is run on 7 cell 4600mAh battery.
    The 100 amp is run on 7 cell 5000mAh battery.
    Reason, I run large 7 cell batteries for long run times.
    But, I have had trouble with small amp ESC's over heating
    with these batteries. Through experimentation the 40 amp is fine
    and the 100 a bit over kill. Once you get yours built and running
    well, the next thing you'll want is run time. Staying out 45 minutes
    instead of 15 minutes is huge in the fun part.
    (Photos of our prototypes Yellow Mon and Stretch totally
    hand made from scratch many hours of shaping) jocktime
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  7. #257

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    RE: RC Surfer

    jocktime......Potos and have the construction process?

    when one familiar with the subject at home .. I make a longboard surfer rc
    thankyou

  8. #258

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    RE: RC Surfer

    I also would like to go brushless with my surfer lisa. I would like to go with an aquacraft motor and speed control from an sv 27. But I thought you had to use more then the 7 cell nimh packs to power these brushless setups. Am I wrong on this-can I go with just 7 cells?

  9. #259

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    RE: RC Surfer

    toyguy
    You will probably need to go to 11.1v 3 cell Lipo packs. I just completed my brushless installation and tried to run it with the 6 cell Nicad that came with it and it just can't turn the motor. My guess is if you go with a sensored brushless motor as apposed to a sensor less brushless motor, a 6-7 cell nicad may work.>>

  10. #260

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    RE: RC Surfer

    Ok, here are some pictures of myfinished surfer
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  11. #261

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    RE: RC Surfer

    Joe,
    Looks cool. I will suggest checking out Lead Tape form your local golf shop. It is a much thinner but also more pliable so you can wrap it along the keel. you will need a few extra strips but it will be more aqua-dynamic. I wiould love to read some specifics on your motor/battery set up and runtimes.

    Glad to see RC surfing making a comeback.

  12. #262

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    RE: RC Surfer


    ORIGINAL: jocktime

    I have modified Lisa's and board Sharks and I say Board Shark hands down
    Jock,
    Have you had any issues with the rudder push/pull being too tight going to the port side? I have tried every adjustment possible between the servo but it has plenty of direction to go starboard but port it binds up. In short, it turns right (frontside) great but left (backside) it is much wider.


  13. #263

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    RE: RC Surfer

    hi to all .. I need help!
    the first attempt at surfing .... deadly!
    enters some water and I do not know where.
    -maybe the rubber seal on the cover?
    -board locking screws?
    I've seen some wear rubber gaskets which brings different "lisa"

    some of you it has happened?

    Help please


  14. #264

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    RE: RC Surfer

    LONBOARDT3

    Ah, I too have just performed my second "Surf" test and found some leaking.



    Is your water located in your motor compartment or in the hull?



    Sorryfor the long winded response:



    I had a small amount of water inmy motor compartment and a larger amount in the hull. I found the water in the hull is coming from a small leak at the front tip of the board along the line where the two halfs of the board have been glued together. I am going to seal this and cover the front tip with some epoxy or Fiberglassresin. Hopefully this will seal the leak and also re-enforce the tip of the board.

    In my opinion, these are the areas where water can be coming in:
    1) The rudder
    2) The motor shaft
    3) The deck screws
    4) The on/off switch

    Some things I am going to try to fixpotential leak areas:

    1) I am lining all potential seal type leak areaswith Vaseline. Including the rudder shaft, the motor shaftand all seals and rubber gommets.
    2) Some of myrubber grommets are also loose. I am going to either epoxy glue or caulk these back in place
    3) Seal the switch up with caulk

    Note also that the deck screw thread holeswhich go into the hull are not sealed off from the hull - they go righ into the hull area. So, if water is getting into the hull and your board tips over, this water can go right into your motor compartment because there are no rubber gommets on the inside of the board. I was thinking of wrapping the these deck screws with plumbers tape.

    I have a few other ideas here to check for leaks (I am trying this tonight):



    I was thinking that if you remove the water cooling hose from the motor coil to allow air into the compartment, then seal everything up, and blow air into the water intake on the bottom of the hull while semi submersing the board under water (in a tub), you should see air bubbles where the air is escaping. This should identify potential problem areas. Note: you will probably need to put a finger over the water output port.




  15. #265

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    RE: RC Surfer

    thanks for your quick reply mate.
    Water only comes into the engine compartment
    I entered the pool in the rc surfer "lisa"and bubbles came out for two zone .I think that the problem of the rubber gasket.
    another rubber gasket can use other than the no original?
    other material?
    thank you very much again

  16. #266
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    RE: RC Surfer

    The rubber seal on the Lisa is crap, they always leak. You need to reinforce the deck lid and use lots of spunges.
    Once again, the board shark is much better, it has 5 deck screws instead of 4 and a much better gasket system.
    All my Lisa's leaked and all the board sharks bone dry and that is critical. I don't mean to push the board shark,
    but I have had many Lisa's and their is to many problems with them leaking. Eliminate the on and off switch and
    put the antena through the hull and not the lid then reinforce the lid. I'll put photo's in next post.........jock
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  17. #267

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    RE: RC Surfer

    thanks for the reply friend jocktime.
    directly then I forget to flip the board .... which I then .. what is the board tiburon .. remove the switch .. ok ... but I do not understand what the antenna through the hull and to reinforce the lid.
    thank you very much and looking forward to those photos

  18. #268

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    RE: RC Surfer

    where you can buy online only surfer doll? is broken by the knees and end soon.
    or can I fix it?

    sorry so many questions as I am newbie and my English but use a translator

  19. #269

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    RE: RC Surfer



    Some More Lisa Info

    Leaks
    My leaks are coming in from the deck screws.
    I fixed these and any possible leaks in the deck seal with a thick coat of Vaseline. Its messy but it works!

    Current Draw
    I performed some more current tests - this time in water (tub).
    I was surprised to see that the motor in water drew about 10-12 amps at approx. full throttle

    Run Time Calculations
    I am using a 2200mah 3 cell Lipo pack

    So, this battery can deliver 2.2amps for 1 hour so my calculated run time at full throttle is:
    2.2amp/h / 10amp = 4.54h
    1 hour = 60 minutes
    so 4.54 / 60m = 13 minutes.

    I predict about a 15-20 minute run time on this motor and battery based on normal use (not full throttle all of the time).

    By the way, the brushless motor kicks butt....... This thing isa far cry from the stock motor which could barely get out of it own way.





    I hope some of this information is helpful.


  20. #270

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    RE: RC Surfer

    Oh, one more thing

    I am purchasing a new water cooled ESC.
    Even though the motor doesn't draw large amounts of current, it gets no air to cool it down so my 18amp ESC gets hot and shuts off.

    I have purchased:ETTI @ 45A Water-cooled Brushless ESC 6-16 cells BEC

    Waiting for it to arrive.

  21. #271
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    RE: RC Surfer

    TechyJoe,
    Good call on the ESC, that will help your run time.
    jocktime
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    RE: RC Surfer

    where are you all? ....surfing?

  23. #273

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    RE: RC Surfer

     Coast of New Jersey - for me

    Trying to make Surf-N Lisa as ocean resistant as possible. 


  24. #274

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    RE: RC Surfer

    no longer do that!...... water is still entering the rubber gasket from the lid
    someone has the seal of the lid? I do not know what to do..

  25. #275
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    RE: RC Surfer

    there is deck seals for these surfers on ebay They work awesome.

    http://cgi.ebay.com/ws/eBayISAPI.dll...m=180342424618


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