Motor set back???

[tritico]

Can someone tell me the benefits of the outboard being set back from the hull, or in my case the middle pontoon?
I am planning to remodel a 26' triple toon (1996 Sundancer 260D), and am considering moving the center tube back so that the motor is set back somewhat. The center tube actually protrudes about 2' past the outside tubes at the bow, and I thought about bringing it flush...allowing a set back at the stern???

Any input??

 

[1fishbone]

Re: Motor set back???

Can someone tell me the benefits of the outboard being set back from the hull, or in my case the middle pontoon?
I am planning to remodel a 26' triple toon (1996 Sundancer 260D), and am considering moving the center tube back so that the motor is set back somewhat. The center tube actually protrudes about 2' past the outside tubes at the bow, and I thought about bringing it flush...allowing a set back at the stern???

Any input??

Not sure why you're wanting to do this other than what you said.
Don't you think this might upset the balance that's been designed into this setup?

Are you doing this to achieve better performance?
For appearance?

 

[Frank Acampora]

Re: Motor set back???

Normally, set back on an engine allows the engine to be run higher on the transom and in "cleaner" water. It also provides more leverage to get the bow higher. These contribute to higher speed on a planing hull.

On a displacement 'toon, there would be no benefit at all. Lot of expense and work for no gain.

 

[tritico]

Re: Motor set back???

Yes, it may upset the balance...I wasn't sure?

I have noticed many of the new triple toons in production (ie. voyager) have the center tube longer at the stern than the outside toons...was not sure if this is the "preferred design" now days.

to answer your question, possible performance and more deck space at the stern for fishing seats.
thanks.

 

[tritico]

Re: Motor set back???

When you say "displacement", what exactly do you mean? Are you talking about the fact that most toons don't achieve a plane?

thanks for your reply!

 

[Frank Acampora]

Re: Motor set back???

Exactly. Most 'toons don't get up on a plane. Again though, like the old saying goes: "You can get a brick to fly if you put enough power to it." So, I suppose the same could be said for pontoon boats--put enough power behind them and they will plane. However, moving the engine rearward to gain more deck space is a valid reason to do it.

 

[roscoe]

Re: Motor set back???

Right now, your tubes don't all hit a large wave/wake at the same time.
They hit in succession, which may be a bit softer than if they all hit at once.

Also, if you move the tube and engine back, you may need longer control cables, battery cables, fuel line, and steering cable.

 

[jerryjerry05]

Re: Motor set back???

There's a guy around here with a pontoon boat with 3 tubes and a 300 Yam on the back.The 2 outside tubes are all the same length.The inside is a bit shorter.
It goes fast for a toon.But nowhere as fast as a regular planing hull.
I always laugh at this guy and wonder what he's compesating for???Jerry