A friend of mine built a custom pontoon boat roughly 34' long with
beautiful woodwork. It is powered with a 90 hp and he claims he had
the prop pitched by an expert. He attains 18 mph so he is planing
some but gets very bad fuel economy, I'd estimate 1 mpg. Underway,
most people sit on the foredeck so she probably is bow heavy. Is
there some way to get her to plane better? He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

On 11/1/10 11:15 AM, Frogwatch wrote:
A friend of mine built a custom pontoon boat roughly 34' long with
beautiful woodwork. It is powered with a 90 hp and he claims he had
the prop pitched by an expert. He attains 18 mph so he is planing
some but gets very bad fuel economy, I'd estimate 1 mpg. Underway,
most people sit on the foredeck so she probably is bow heavy. Is
there some way to get her to plane better? He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.


This might do it:

http://tinyurl.com/367x6pm

I don't know what a custom 34' pontoon boat weighs, but I'm guessing two
tons or more. That's a lotta weight and length for a 90 hp outboard to
"plane better." I doubt a lower unit wing is going to make a difference.

On Nov 1, 5:51*pm, W1TEF wrote:
On Mon, 01 Nov 2010 11:36:59 -0400, HarryK wrote:
On 11/1/10 11:15 AM, Frogwatch wrote:
A friend of mine built a custom pontoon boat roughly 34' long with
beautiful woodwork. *It is powered with a 90 hp and he claims he had
the prop pitched by an expert. *He attains 18 mph so he is planing
some but gets very bad fuel economy, I'd estimate 1 mpg. *Underway,
most people sit on the foredeck so she probably is bow heavy. *Is
there some way to get her to plane better? *He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

This might do it:

http://tinyurl.com/367x6pm

I don't know what a custom 34' pontoon boat weighs, but I'm guessing two
tons or more. That's a lotta weight and length for a 90 hp outboard to
"plane better." I doubt a lower unit wing is going to make a difference.

This would do it.

http://tinyurl.com/29cbqav*:)

It should....

On 11/1/2010 10:52 PM, wrote:
On Mon, 1 Nov 2010 18:38:06 -0700 (PDT),
wrote:

On Nov 1, 5:51 pm, wrote:
On Mon, 01 Nov 2010 11:36:59 -0400, wrote:
On 11/1/10 11:15 AM, Frogwatch wrote:
A friend of mine built a custom pontoon boat roughly 34' long with
beautiful woodwork. It is powered with a 90 hp and he claims he had
the prop pitched by an expert. He attains 18 mph so he is planing
some but gets very bad fuel economy, I'd estimate 1 mpg. Underway,
most people sit on the foredeck so she probably is bow heavy. Is
there some way to get her to plane better? He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

This might do it:

http://tinyurl.com/367x6pm

I don't know what a custom 34' pontoon boat weighs, but I'm guessing two
tons or more. That's a lotta weight and length for a 90 hp outboard to
"plane better." I doubt a lower unit wing is going to make a difference.

This would do it.

http://tinyurl.com/29cbqav :)

It should....


This is what the boys over on Pontoon forum are doing

http://www.pontoonforums.com/download/file.php?id=3386

http://www.pontoonforums.com/download/file.php?id=3390

http://www.pontoonforums.com/download/file.php?id=3018

http://www.pontoonforums.com/download/file.php?id=3019


Don't see too many pontoon boats out on LI Sound. :)

On Nov 2, 7:35*am, "Paul@BYC" wrote:
On 11/1/2010 10:52 PM, wrote:





On Mon, 1 Nov 2010 18:38:06 -0700 (PDT),
wrote:

On Nov 1, 5:51 pm, *wrote:
On Mon, 01 Nov 2010 11:36:59 -0400, *wrote:
On 11/1/10 11:15 AM, Frogwatch wrote:
A friend of mine built a custom pontoon boat roughly 34' long with
beautiful woodwork. *It is powered with a 90 hp and he claims he had
the prop pitched by an expert. *He attains 18 mph so he is planing
some but gets very bad fuel economy, I'd estimate 1 mpg. *Underway,
most people sit on the foredeck so she probably is bow heavy. *Is
there some way to get her to plane better? *He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

This might do it:

http://tinyurl.com/367x6pm

I don't know what a custom 34' pontoon boat weighs, but I'm guessing two
tons or more. That's a lotta weight and length for a 90 hp outboard to
"plane better." I doubt a lower unit wing is going to make a difference.

This would do it.

http://tinyurl.com/29cbqav:)

It should....

This is what the boys over on Pontoon forum are doing

http://www.pontoonforums.com/download/file.php?id=3386

http://www.pontoonforums.com/download/file.php?id=3390

http://www.pontoonforums.com/download/file.php?id=3018

http://www.pontoonforums.com/download/file.php?id=3019

Don't see too many pontoon boats out on LI Sound. *:)

They tend to be popular on inland lakes and places where the weather
is warmer than LI Sound. :-

On 11/2/10 7:52 AM, Jack wrote:
On Nov 2, 7:35 am, wrote:
On 11/1/2010 10:52 PM, wrote:





On Mon, 1 Nov 2010 18:38:06 -0700 (PDT),
wrote:

On Nov 1, 5:51 pm, wrote:
On Mon, 01 Nov 2010 11:36:59 -0400, wrote:
On 11/1/10 11:15 AM, Frogwatch wrote:
A friend of mine built a custom pontoon boat roughly 34' long with
beautiful woodwork. It is powered with a 90 hp and he claims he had
the prop pitched by an expert. He attains 18 mph so he is planing
some but gets very bad fuel economy, I'd estimate 1 mpg. Underway,
most people sit on the foredeck so she probably is bow heavy. Is
there some way to get her to plane better? He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

This might do it:

http://tinyurl.com/367x6pm

I don't know what a custom 34' pontoon boat weighs, but I'm guessing two
tons or more. That's a lotta weight and length for a 90 hp outboard to
"plane better." I doubt a lower unit wing is going to make a difference.

This would do it.

http://tinyurl.com/29cbqav:)

It should....

This is what the boys over on Pontoon forum are doing

http://www.pontoonforums.com/download/file.php?id=3386

http://www.pontoonforums.com/download/file.php?id=3390

http://www.pontoonforums.com/download/file.php?id=3018

http://www.pontoonforums.com/download/file.php?id=3019

Don't see too many pontoon boats out on LI Sound. :)

They tend to be popular on inland lakes and places where the weather
is warmer than LI Sound. :-


I remember several warm days out on Long Island Sound when I was a
Connecticut Yankee. Several, at least.

wrote in message
...
On Mon, 1 Nov 2010 18:38:06 -0700 (PDT), Tim
wrote:

On Nov 1, 5:51 pm, W1TEF wrote:
On Mon, 01 Nov 2010 11:36:59 -0400, HarryK wrote:
On 11/1/10 11:15 AM, Frogwatch wrote:
A friend of mine built a custom pontoon boat roughly 34' long with
beautiful woodwork. It is powered with a 90 hp and he claims he had
the prop pitched by an expert. He attains 18 mph so he is planing
some but gets very bad fuel economy, I'd estimate 1 mpg. Underway,
most people sit on the foredeck so she probably is bow heavy. Is
there some way to get her to plane better? He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

This might do it:

http://tinyurl.com/367x6pm

I don't know what a custom 34' pontoon boat weighs, but I'm guessing
two
tons or more. That's a lotta weight and length for a 90 hp outboard to
"plane better." I doubt a lower unit wing is going to make a
difference.

This would do it.

http://tinyurl.com/29cbqav :)

It should....


This is what the boys over on Pontoon forum are doing

http://www.pontoonforums.com/download/file.php?id=3386

http://www.pontoonforums.com/download/file.php?id=3390

http://www.pontoonforums.com/download/file.php?id=3018

http://www.pontoonforums.com/download/file.php?id=3019
I think that in a time, long long ago and far down the river, my pontoons
were all shiny and pretty like that!

On Mon, 1 Nov 2010 08:15:54 -0700 (PDT), Frogwatch
wrote:

He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

How is the running attitude - level, bow down, stern down? What about
the size of the wake? If he's throwing a big wake and plowing a lot
of water, he may need more power to get it on top. 90 hp is not much
power for a boat that size. Many guys are running 90 hp on much
smaller pontoons.

We have some really big pontoons around here, 50 to 60 ft, used for
running tours. They usually have a pair of 200s or more.

On Nov 1, 10:47*am, Wayne.B wrote:
On Mon, 1 Nov 2010 08:15:54 -0700 (PDT), Frogwatch

wrote:
He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

How is the running attitude - level, bow down, stern down? *What about
the size of the wake? * If he's throwing a big wake and plowing a lot
of water, he may need more power to get it on top. * 90 hp is not much
power for a boat that size. * Many guys are running 90 hp on much
smaller pontoons.

We have some really big pontoons around here, 50 to 60 ft, used for
running tours. * They usually have a pair of 200s or more.

I was gonna say. 90 hp on a 34' loaded w/ people on the bow end?

it seems a chore for my 30' with an old 85 hp 2-stroke. But I can't
imagine that rig.

Mine sucks gas, too, so Frog's friend shouldn't feel too bad. Yeah,
he needs twins or a conversion.

On Nov 1, 11:15*am, Frogwatch wrote:
A friend of mine built a custom pontoon boat roughly 34' long with
beautiful woodwork. *It is powered with a 90 hp and he claims he had
the prop pitched by an expert. *He attains 18 mph so he is planing
some but gets very bad fuel economy, I'd estimate 1 mpg. *Underway,
most people sit on the foredeck so she probably is bow heavy. *Is
there some way to get her to plane better? *He does have one of those
Dol-Fin things on the motor but I think he needs more planing surface
along the pontoons.

Maybe one of these would be the ticket?

http://www.pontoonwaterglide.com/index.asp

Factory "performance" pontoons typically have lifting strakes which
help the toon plane. In their most basic form, think of taking angle
iron (a piece of L shaped metal) and welding it to each side of the
toons maybe a quarter of the way up the side, giving them some flat
sutface area on each side, thereby increasing the lift. That would be
tough to add to an existing toon.