# Rudder mounted dual thruster fishing kayak project

**URL:** <https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608>\
**Category:** Blue Robotics Products\
**Created:** [May 7, 2018, 5:27pm UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608 "2018-05-07T17:27:22Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Buzzbomb82](https://avatars.discourse-cdn.com/v4/letter/b/a8b319/32.png) [@Buzzbomb82](https://discuss.bluerobotics.com/u/Buzzbomb82)\
**Post date:** [May 7, 2018, 5:27pm UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608/1 "2018-05-07T17:27:22Z")

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I’m wanting try and mount two thrusters to a fishing kayak. I was thinking of attaching the mounting bracket to a peddle operated kayak rudder. I was wondering what I will need to build this project and what are people using for a throdle and forward and reverse controls.

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**Author:** ![jwalser](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/jwalser/32/2234_2.png) [@jwalser](https://discuss.bluerobotics.com/u/jwalser)\
**Post date:** [May 7, 2018, 5:34pm UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608/2 "2018-05-07T17:34:36Z")

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Check out our [thruster commander](https://www.bluerobotics.com/store/thrusters/cmdr-r1-rp/) product, and use the search feature on these forums to discover similar projects.

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**Author:** ![Buzzbomb82](https://avatars.discourse-cdn.com/v4/letter/b/a8b319/32.png) [@Buzzbomb82](https://discuss.bluerobotics.com/u/Buzzbomb82)\
**Post date:** [May 8, 2018, 5:11pm UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608/3 "2018-05-08T17:11:15Z")

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Will a regular out board lanyard kill switch work? Where should you wire it in at? I would say between the battery and the thruster commander correct?

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**Author:** ![dheideman](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/dheideman/32/1555_2.png) [@dheideman](https://discuss.bluerobotics.com/u/dheideman)\
**Post date:** [May 9, 2018, 5:46pm UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608/4 "2018-05-09T17:46:20Z")

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A lanyard kill switch should work fine. The _Thruster Commander_ is designed to be usable with a kill switch attached to the “SWITCH” input on the left side of the board. It should be as simple as replacing the blue jumper that comes pre-installed on the _Commander_ with your kill switch. See the [documentation](http://docs.bluerobotics.com/commander/#deadman-switchenabling-output) for more information.

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**Author:** ![e-sup](https://avatars.discourse-cdn.com/v4/letter/e/0ea827/32.png) [@e-sup](https://discuss.bluerobotics.com/u/e-sup)\
**Post date:** [May 10, 2018, 7:05am UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608/5 "2018-05-10T07:05:06Z")

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In kayak application I would recommend to consider:

- potentiometer should be in visible place with a scale. Or replace potentiometer with stepped potentiometer. You will want to have control exactly how much power is currently on motor.
- if ESC is in closed container, it must have enough cooling capability. My 40A rated BLheli ESC with setup to reduce power at 100 degrees Celsius can constantly handle only 1700 PWM, that is only few amps. Plastic around ESC melted. Now I’ve added additional cooler, waiting for test.
- on 4,3 m long SUP, with 32 Ah 4s Lipo battery, distance approx. 3 kilometers at 4.5-5 km/h (1700 PWM) i spend 40% capacity.

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**Author:** ![Buzzbomb82](https://avatars.discourse-cdn.com/v4/letter/b/a8b319/32.png) [@Buzzbomb82](https://discuss.bluerobotics.com/u/Buzzbomb82)\
**Post date:** [May 10, 2018, 10:52am UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608/6 "2018-05-10T10:52:43Z")

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Yes I’m thing of using a joystick to control forward reversing and left and right turning of rudder servo. I’m ditching peddle controls for the rudder for servos.

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**Author:** ![e-sup](https://avatars.discourse-cdn.com/v4/letter/e/0ea827/32.png) [@e-sup](https://discuss.bluerobotics.com/u/e-sup)\
**Post date:** [May 10, 2018, 12:31pm UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608/7 "2018-05-10T12:31:32Z")

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Then for forward and reverse it is good if yostick stays in position, and when turning left and right returns in middle position. During moving to position or trolling your hands should be free.  
Such yojstick are in RC transmiters, but they are not waterproof.  
example: [http://www.himodel.com/img\_sub/rc\_img/14/06/10617.jpg](http://www.himodel.com/img_sub/rc_img/14/06/10617.jpg)

Another consideration with potentimeter and yojstick. When they are not centered at 1500 PWM ESC will not arm. I’m using wireles remote buttons and can always set PWM exactly at 1500 PWM.

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**Author:** ![Buzzbomb82](https://avatars.discourse-cdn.com/v4/letter/b/a8b319/32.png) [@Buzzbomb82](https://discuss.bluerobotics.com/u/Buzzbomb82)\
**Post date:** [May 10, 2018, 11:53pm UTC](https://discuss.bluerobotics.com/t/rudder-mounted-dual-thruster-fishing-kayak-project/2608/8 "2018-05-10T23:53:58Z")

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Good Idea I’ll look into it thanks
