Twin outboard deep V set up

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JimNelson

Member
Joined
Feb 25, 2019
Messages
22
 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:
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. 
 
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 ?
 
 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 ?
 
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. 
 
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
 
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. 


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. 
 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 .
 
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. 

View attachment 100376
 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 .
 
I think that picture just needs to have the motors strait up and then you get the idea. 
 
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
 
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
 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. 
 
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. 
 
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.  
 
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
 
All of my twin outboards have never run counter rotating props, it has never been an issue. 
 
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.  
 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 !
 
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.
 
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.
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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