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Stability of a center toon to an old pontoon boat

Printed From: Pontoon Forum
Category: Show Off Your Pontoon Boat
Forum Name: Pontoon Boat Rebuild Projects
Forum Description: Members/Customers who are rebuilding their Pontoon Boats
Printed Date: 06/16/2021 at 3:39am
Software Version: Web Wiz Forums 11.01 -

Topic: Stability of a center toon to an old pontoon boat
Posted By: kirkifer
Subject: Stability of a center toon to an old pontoon boat
Date Posted: 08/31/2020 at 8:31pm
Greetings everyone. 

Here is the 1986 Godfrey Aqua Patio with some of the new seats installed. As you look at the pictures, you can see that the boat is bow heavy. The Evinrude 48 SPL is what I call, "a little putt putt motor". It needs replaced with at least a 90HP. There is just too much boat for it to do anything other than push this thing along at a liesurely pace. In 1986, that is what pontoons were built to do.

I put a couple of passengers up front and I found out the hard way that the buoyacy on these old 19" toons is not real spectacular. I had more water over the deck than I really expected. I was okay with it but it made the passengers uncomfortable. 

My solution was to add a third toon, but here is what I was told by an expert...

He said the 19" toons do not have nearly the buoyancy of a modern toon and the boat would become uncomfortable to ride on with a larger center toon. He reccomended buying another 19" toon and said that would definitely improve the performance and would not make the deck "unstable".

I find that everyone has an opinion. Is he correct? I just can't imagine a 21" or a 23" toon in the center causing this boat to be "unstable". 

So, what is your experience?

Posted By: Ted Sr
Date Posted: 09/03/2020 at 4:44pm
I added a larger diameter log to my old Playbuoy and it works fine. The original boat was 24' long and 18" diameter logs. The added log is 16' long and 24" diameter.

No time on the water is wasted.

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