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Thread: Waterproof High Torque Brush-less Servo

  1. #1
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    Default Waterproof High Torque Brush-less Servo

    Anyone tried of these yet in a 1/8 FE Unlimited

    ProTek RC 370TBL "Black Label" Waterproof High Torque Brush-less Servo (High Voltage/Metal Case)


    Dynamic Torque
    @ 6.0V 600 oz-in (43.2 kg-cm)
    Dynamic Torque
    @ 7.4V 650 oz-in (46.8 kg-cm)
    Motor Type
    Brushless
    Output Shaft 25 Tooth
    Gears Steel
    Weight 72g
    Pulse/Frequency
    1520μs / 333hz
    Dimensions 40x20x37.8mm
    Length (Bottom to Mount)
    28.4mm
    Last edited by Tom G; 09-02-2017 at 11:26 AM.

  2. #2
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    I haven't used that one, but have the ProTek RC 130T in a gas boat since first of the year and I have not had any issues with it.

  3. #3
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    Quote Originally Posted by oscarel View Post
    I haven't used that one, but have the ProTek RC 130T in a gas boat since first of the year and I have not had any issues with it.

    I use to be a serious Hi Tech 7950's & 7980's guy in my other hobby RC Rock crawlers not the scale stuff, but serious Custom built 1/8 Comp Crawlers 2 ESC's & @ 1 motor on each axle 4wd @ 4ws but kept burning the HI-tech's up even a mild voltages so switch to ProTek 170t's and have not smoke a servo 1 in 2 yrs (just for a size comparison the wheels on the pictured are 8 " in dia)

    I'm sure the What I posted up above will be just fine especially with 600 + oz of Tq. just was wondering if anyone had used them in a boat and gave them a wet test yet
    IMG_1062.jpg
    IMG_1061.jpg

  4. #4
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    There is no need for that kind of power in an FE boat. Boats are not crawlers. Even half that torque is more than required ever for much larger boats. Rather than spend the money on unnecessary power, IMO spend it on a good digital servo in the 200-250 in-oz range. The digital will have strong centering power which is more important that brute strength.


    .
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  5. #5
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    I agree 100%... I worked out the torque requirement on a rainy weekend and a 35" boat going 60mph, using 4" of rudder water penetration, took about 158oz/in". I figured that was driving it pretty hard (I'm not at that level, YET). So I got a 215oz/in" unit in there. Another point about overpowered servos is that they can voltage spike your receiver. They have a very high current pull when they start to move. I put a capacitor onto my unused recv. channel to tame down the 215oz unit. The UBEC has a chock (ferrite ring) on the power feed wire giving some L, then the added C made a nice filter.

  6. #6
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    That's "choke" not chock... have I mentioned that spell checkers are a PIA?!

  7. #7
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    I'll tell you something I just noticed. I have a radio post green servo which is 249in oz at 6v and 305in-oz at 7.4v and just sitting on the bench turning the rudder back and forth, you can see the voltage drop .1v

    I can only imagine when it's actually working.

    Link to the servo. It's in my 34" mono

    http://www.ebay.com/itm/Radiopost-Mu...-/291187070670
    Last edited by kfxguy; 09-01-2017 at 08:27 PM.
    32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

  8. #8
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    Put a cap on your receiver... Do you want me to post a pic?

  9. #9
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    Some of the savox servos come with them. stops brown outs.

    http://www.savoxusa.com/Glitch_Buste..._p/rce2474.htm

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  10. #10
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    Pic posted anyway!
    Attached Images Attached Images

  11. #11
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    A lot of good info and I thank U all only issues are no one answered the 1 question that was at the hart of my post

    "just was wondering if anyone had used them in a boat and gave them a wet test yet "

    It only required a 2 or a 3 lettered word NO OR YES

    TNX GUYS

  12. #12
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    looks like you answered your own question and probably pissed off a few people in the process.

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  13. #13
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    NO!! You try it and let us know, how about that?

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