On Tue, 21 Oct 2008 09:44:55 -0700 (PDT), Tim
wrote:

I'm not necessarily into speed but more into economical performance.
Of course the Speed would probably be determined on how many people
one stacks on the boat, but I'd like to look over the options. But
seeing this would be on a mild lake or slow river (normal flow 7 mph,
max. flow 12 mph) It might be a neat project.

It is unlikely that 28 hp will get it going on plane which will limit
you to fast displacement speeds, maybe 10 to 12 mph if you are lucky.
You really do not want to be underpowered on a river with 8 to 12 mph
of current.

On Oct 21, 12:20*pm, Wayne.B wrote:
On Tue, 21 Oct 2008 09:44:55 -0700 (PDT), Tim
wrote:

I'm not necessarily into speed but more into economical performance.
Of course the Speed would probably be determined on how many people
one stacks on the boat, but I'd like to look over the options. But
seeing this would be on a mild lake or slow river (normal flow 7 mph,
max. *flow 12 mph) It might be a neat project.

It is unlikely that 28 hp will get it going on plane which will limit
you to fast displacement speeds, maybe 10 to 12 mph if you are lucky.
You really do not want to be underpowered on a river with 8 to 12 mph
of current.

That's another good call. Yes. one hp per ft. doesn't really sound
very encouraging. and top end on glass'smooth water mgith be in the 15
mph range. Not too good if fighting a current of 12 on the river and
especially when there's 8-12 people on board.

More for consideration.

Thanks Wayne.

OK, I've given in to using my 115 evinrude which would be the
practical way. and so I'm thinking of decking material seeing its
really soft that is, what wood is still there.

I'm not against the idea of using Marine ply, but I've always wondered
why composite wod wouldn't be a better selection.

I got tired of my front porch rotting away ever 5 years, because the
treated pine couldn't hold up against the brunt of weather and baking
sun because out house faces the west. and the summer sun hits it hard.
So I bit the bullet and went with composite decking material (Trex) I
lvoe it! It was easy to work with, and no maintenance, painting, and
it doesn't rot.

so I did a bit of looking around and found this:

http://www.nauticexpo.com/prod/teck-...65-125119.html

I see they have used it for teak replacement and it looks pretty good.
Of course I might not be able to use it practically speaking, because
it would mean reinforcing with a couple extra floor joints (I suppose
that's what you'd call them) But I do like the idea of it lasting for
absolutely years.

I'm also wondering why pontoon and boat mfg's don't use more of these
products. especially in stringer construction.

On Tue, 21 Oct 2008 17:19:20 -0700 (PDT), Tim wrote:

OK, I've given in to using my 115 evinrude which would be the
practical way. and so I'm thinking of decking material seeing its
really soft that is, what wood is still there.

I'm not against the idea of using Marine ply, but I've always wondered
why composite wod wouldn't be a better selection.

I got tired of my front porch rotting away ever 5 years, because the
treated pine couldn't hold up against the brunt of weather and baking
sun because out house faces the west. and the summer sun hits it hard.
So I bit the bullet and went with composite decking material (Trex) I
lvoe it! It was easy to work with, and no maintenance, painting, and
it doesn't rot.

so I did a bit of looking around and found this:

http://www.nauticexpo.com/prod/teck-...65-125119.html

I see they have used it for teak replacement and it looks pretty good.
Of course I might not be able to use it practically speaking, because
it would mean reinforcing with a couple extra floor joints (I suppose
that's what you'd call them) But I do like the idea of it lasting for
absolutely years.

I'm also wondering why pontoon and boat mfg's don't use more of these
products. especially in stringer construction.

Cost maybe? Is that stuff cheap? Have you considered exterior plywood
covered with a fancy linoleum?

(Hee, hee!)
--
A Harry Krause truism:

"It's not a *baby* kicking, beautiful bride, it's just a fetus!"
[A Narcissistic Hypocrite]

On Oct 21, 8:07*pm, JohnH wrote:
On Tue, 21 Oct 2008 17:19:20 -0700 (PDT), Tim wrote:
OK, I've given in to using my 115 evinrude which would be the
practical way. and so I'm thinking of decking material seeing its
really soft that is, what wood is still there.

I'm not against the idea of using Marine ply, but I've always wondered
why composite wod wouldn't be a better selection.

I got tired of my front porch rotting away ever 5 years, because the
treated pine couldn't hold up against the brunt of weather and baking
sun because out house faces the west. and the summer sun hits it hard.
So I bit the bullet and went with composite decking material (Trex) I
lvoe it! *It was easy to work with, and no maintenance, painting, and
it doesn't rot.

so I did a bit of looking around and found this:

http://www.nauticexpo.com/prod/teck-...ng-synthetic-t...

I see they have used it for teak replacement and it looks pretty good.
Of course I might not be able to use it practically speaking, because
it would mean reinforcing with a couple extra floor joints (I suppose
that's what you'd call them) But I do like the idea of it lasting for
absolutely years.

I'm also wondering why pontoon and boat mfg's don't use more of these
products. especially in stringer construction.

Cost maybe? Is that stuff cheap? Have you considered exterior plywood
covered with a fancy linoleum?

(Hee, hee!)
--
A Harry Krause truism:

"It's not a *baby* kicking, beautiful bride, it's just a fetus!"
*[A Narcissistic Hypocrite]

LOL!

Well, not really. And no it's not cheap, but really, neither is
exterior or marine plywood.

On Oct 21, 10:30*pm, wrote:
On Tue, 21 Oct 2008 18:37:51 -0700 (PDT), Tim
wrote:





On Oct 21, 8:07*pm, JohnH wrote:
On Tue, 21 Oct 2008 17:19:20 -0700 (PDT), Tim wrote:
OK, I've given in to using my 115 evinrude which would be the
practical way. and so I'm thinking of decking material seeing its
really soft that is, what wood is still there.

I'm not against the idea of using Marine ply, but I've always wondered
why composite wod wouldn't be a better selection.

I got tired of my front porch rotting away ever 5 years, because the
treated pine couldn't hold up against the brunt of weather and baking
sun because out house faces the west. and the summer sun hits it hard..
So I bit the bullet and went with composite decking material (Trex) I
lvoe it! *It was easy to work with, and no maintenance, painting, and
it doesn't rot.

so I did a bit of looking around and found this:

http://www.nauticexpo.com/prod/teck-...ng-synthetic-t....

I see they have used it for teak replacement and it looks pretty good..
Of course I might not be able to use it practically speaking, because
it would mean reinforcing with a couple extra floor joints (I suppose
that's what you'd call them) But I do like the idea of it lasting for
absolutely years.

I'm also wondering why pontoon and boat mfg's don't use more of these
products. especially in stringer construction.

Cost maybe? Is that stuff cheap? Have you considered exterior plywood
covered with a fancy linoleum?

(Hee, hee!)
--
A Harry Krause truism:

"It's not a *baby* kicking, beautiful bride, it's just a fetus!"
*[A Narcissistic Hypocrite]

LOL!

Well, not really. *And no it's not cheap, but really, neither is
exterior or marine plywood.

One of the functions of the plywood is to stiffen up the structure.
Planking would have to be run fore and aft and probably should be 24'
long (about as much deck as you get on a 28) You still would have the
racking problem if you didn't have diagonal members in the design.
In a chop or boat wake a pontoon gets a lot of flexing stress. The
plywood damps this.- Hide quoted text -

- Show quoted text -

Yep, that's called a diaphram. Same way roof deck works on structures
with bar joists.

On Wed, 22 Oct 2008 01:07:52 GMT, JohnH wrote:

Cost maybe? Is that stuff cheap? Have you considered exterior plywood
covered with a fancy linoleum?

I would think lino would be slippery, especially when wet.

Casady

On Oct 22, 10:42*am, (Richard Casady)
wrote:
On Wed, 22 Oct 2008 01:07:52 GMT, JohnH wrote:
Cost maybe? Is that stuff cheap? Have you considered exterior plywood
covered with a fancy linoleum?

I would think lino would be slippery, especially when wet.

Casady

Oh! I agree.

But wouldn't it look nice?

?;^ Q


Seriously though, Hey, I'm enjoying this thread. It's giving some good
insight on things which I appreciate.

This is what Rec.Boats is for!

On Wed, 22 Oct 2008 11:00:39 -0700 (PDT), Tim wrote:

On Oct 22, 10:42*am, (Richard Casady)
wrote:
On Wed, 22 Oct 2008 01:07:52 GMT, JohnH wrote:
Cost maybe? Is that stuff cheap? Have you considered exterior plywood
covered with a fancy linoleum?

I would think lino would be slippery, especially when wet.

Casady

Oh! I agree.

But wouldn't it look nice?

?;^ Q


Seriously though, Hey, I'm enjoying this thread. It's giving some good
insight on things which I appreciate.

This is what Rec.Boats is for!

I knew you had good taste. Besides, a little glue and some sand and the
slipperiness is history!
--
A Harry Krause truism:

"It's not a *baby* kicking, beautiful bride, it's just a fetus!"
[A Narcissistic Hypocrite]

On Oct 21, 9:00*pm, wrote:
On Tue, 21 Oct 2008 17:19:20 -0700 (PDT), Tim
wrote:



OK, I've given in to using my 115 evinrude which would be the
practical way. and so I'm thinking of decking material seeing its
really soft that is, what wood is still there.

I'm not against the idea of using Marine ply, but I've always wondered
why composite wod wouldn't be a better selection.

I got tired of my front porch rotting away ever 5 years, because the
treated pine couldn't hold up against the brunt of weather and baking
sun because out house faces the west. and the summer sun hits it hard.
So I bit the bullet and went with composite decking material (Trex) I
lvoe it! *It was easy to work with, and no maintenance, painting, and
it doesn't rot.

so I did a bit of looking around and found this:

http://www.nauticexpo.com/prod/teck-...ng-synthetic-t...

I see they have used it for teak replacement and it looks pretty good.
Of course I might not be able to use it practically speaking, because
it would mean reinforcing with a couple extra floor joints (I suppose
that's what you'd call them) But I do like the idea of it lasting for
absolutely years.

I'm also wondering why pontoon and boat mfg's don't use more of these
products. especially in stringer construction.

MDO plywood and seal the edges very well. I used epoxy resin. *Mine is
going on 18 years, I'm a 12 month boater in salt water. The boat is in
the water or swinging over it on hooks virtually all the time.
I glassed over the joints on top and pained the deck with a couple of
gallons of elastomeric roof coating before I put the carpet down.
Getting ready for the 3d carpet but the deck is still solid except a
small bad spot where I drilled a hole and didn't seal the edge of the
bored hole. Next carpet time I am just going to cut out that bad spot,
plug it and seal it well.

Now that you've pointed that out, I can see why the plywood is the
choice.

Hey thanks man. this is getting to be fairly educational.

good advice all the way around!