Twin outboard deep V set up

Discussion in 'Outboard Forum' started by JimNelson, Mar 12, 2019.

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  1. Mar 12, 2019 #1

    JimNelson

    JimNelson

    JimNelson

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     Looking for some input on setting up a 65 inch Capricorn Apache deep V  with a pair of K&B11 CC outboard’s !

     Need to know the best location to mount the outboards on the transom as far as height and spacing between the two outboards  and also some input on steering servo size and type and a possible battery set up ?

     Also going to be using captain Vics jack plates .

     Thanks in advance for any  feedback !

    69560EA9-9B2C-41F9-AF53-A22C3821E626.jpeg
     
    Last edited by a moderator: Mar 12, 2019
  2. Mar 13, 2019 #2

    topfuel443

    topfuel443

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    I’ve set up and run several twin engine outboard tunnels, but never a Deep V. I have no clue where to set them at, but good luck!! Looks like a cool project. 
     
  3. Mar 13, 2019 #3

    JimNelson

    JimNelson

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    what size servo or servos did you use to steer those ? Just wondering if a  pair of all metal gear standard size servos would be enough or if I should go with quarter scale servos ?
     
  4. Mar 13, 2019 #4

    topfuel443

    topfuel443

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  5. Mar 15, 2019 #5

    JimNelson

    JimNelson

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     That’s a sweet set up how fast can the electric motors get it going? 

     Do you think I can get away with just using one  1/4 or fifth scale servo for steering or would it be easier to set it up with two seeing as how there will be more than enough room inside the boat ?
     
  6. Mar 15, 2019 #6

    topfuel443

    topfuel443

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    Thanks, it should run in the 60's as it is. Its quick for being such a big boat. 

    I have my engines on one single mount, and they pivot together off of one pivot point. I would assume your setup would have each motor mounted independently of each other so it may be easier for each one to have its own servo. Either way would work. 
     
  7. Mar 16, 2019 #7

    Tommy Lee

    Tommy Lee

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    Here is a very rough drawing but you can get the idea. This works great on the full size OPC boats. It helps stabilize the boat and keeps the props in better contact with the water in the turns. 

    boat and motors assembled.jpg
     
  8. Mar 16, 2019 #8

    JimNelson

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     Yes they are mounted  independently and  pivot separately from each other . I think I will try single 1/5 scale servo to start out with .
     
  9. Mar 16, 2019 #9

    JimNelson

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     As close together as you can get the props I get,but the degree of the  outboards does not make any sense to me?  Because it would be impossible to steer !  Please elaborate .
     
  10. Mar 16, 2019 #10

    MarkF

    MarkF

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    I think that picture just needs to have the motors strait up and then you get the idea. 
     
  11. Mar 16, 2019 #11

    HTV Boats

    HTV Boats

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    Tommy has it correct. The angled lowers, one lifts and the other digs as you input steering, so they remain neutral and the boat turns. You do need counter rotating props to make it work. Easy with electric but not so easy with Nitro.

    Mic
     
  12. Mar 16, 2019 #12

    JimNelson

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     Yeah OK I get it and I was told it would be  next to impossible to get the K&B outboards to run in counterrotation .

     Would like to see that in action. 
     
  13. Mar 16, 2019 #13

    Tommy Lee

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    Turning is not a problem. You do need to connect both motors together which requires a bit of work (heim joints or similar) to keep the angles from binding  and it does NOT require counter rotating props. 
     
  14. Mar 17, 2019 #14

    Carl Van Houten

    Carl Van Houten

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    When I setup my twin outboards I ran one skeg. I was affraid that I could not get the two skegs perfectly aligned. My setup liked it. I had wanted to cut them both off and run one in the center but never got around to it.  
     
  15. Mar 17, 2019 #15

    Tommy Lee

    Tommy Lee

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    Correction-Mic was right-they did run counter-rotating props. You can see it in this photo. I think you could run a model without counter rotation-JMO 

    2566twins12[1].jpg
     
  16. Mar 17, 2019 #16

    topfuel443

    topfuel443

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    All of my twin outboards have never run counter rotating props, it has never been an issue. 
     
  17. Mar 17, 2019 #17

    JimNelson

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     That’s a good idea I did not even think of that issue and how did you choose which side to cut off?  I guess maybe I will have to pick up a spare lower unit and test it out !
     
  18. Mar 17, 2019 #18

    JimNelson

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    Would it have the same affect without counterrotating props? 
     
  19. Mar 18, 2019 #19

    Tommy Lee

    Tommy Lee

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    I am just assuming that you are not going to race this boat and if that is true you are just using it for sport running and fun. If that is the case then counter rotating props are not needed. I would probably run smaller props deeper in the water to have a stable and controlled ride. You do not need to cut off a skeg. That is just wasting a lower unit. All you have to do is run an adjustable arm between the motors locking them together and using this you can align the skegs perfectly. This way both motors will turn the same amount and you will need strong servos. You can see the steering arm that locks the motors together in the photo above. I will try to find a better picture.
     
  20. Mar 18, 2019 #20

    JimNelson

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    Yes you are correct just for fun and is there a good spacing you would recommend between the two units,would they be better off closer together or farther apart ?
    Thank you for your feedback !
     

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