Re: Box keel
Batteries make great ballast but aren't you risking a
short circuit by having them in the bilge if you ship
too much water.
cheers
andrew airey
ps
Happy Christmas everybody
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short circuit by having them in the bilge if you ship
too much water.
cheers
andrew airey
ps
Happy Christmas everybody
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I have made a lot of tanks over the years at a number
of shops I have work at. The ones that I will not
forget were four tanks all about 22 inchs wide 14
inches tall and 12 feet long with no baffles!
I had got two of them done and then was told the owner
had changed his mind and wanted baffles put in every 2
feet. Talk about tanks from hell! I'm glad I was only
155 lbs at the time but I was still 6 feet tall. I
know there was a whole lot of cursing going on while I
was putting in the baffles.
Oh the boss had me cut out the ends so I could slide
inside the tank to install the baffles on the ones
already made.
Blessings all
Kristine
--- Christopher Wetherill <wetherillc@...>
wrote:
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of shops I have work at. The ones that I will not
forget were four tanks all about 22 inchs wide 14
inches tall and 12 feet long with no baffles!
I had got two of them done and then was told the owner
had changed his mind and wanted baffles put in every 2
feet. Talk about tanks from hell! I'm glad I was only
155 lbs at the time but I was still 6 feet tall. I
know there was a whole lot of cursing going on while I
was putting in the baffles.
Oh the boss had me cut out the ends so I could slide
inside the tank to install the baffles on the ones
already made.
Blessings all
Kristine
--- Christopher Wetherill <wetherillc@...>
wrote:
> If I remember my stability lessons correctly, the__________________________________________________
> effect of free
> surface in a tank is a function of breadth to the
> third power and
> length to the first. It is, therefore advantageous
> to orient a large
> tank longitudinally. This makes a tank in a box
> keelquite feasible.
>
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One factor I haven't yet seen mentioned is the behaviour at speed on a
power sharpie. The box keel modification to the design for Sneakeasy
was intended to lessen the tendency of the hull to trip on its chine
when turning.
V/R
Chris
power sharpie. The box keel modification to the design for Sneakeasy
was intended to lessen the tendency of the hull to trip on its chine
when turning.
V/R
Chris
--- Inbolger@yahoogroups.com, "Glenn" <devinetemptations@...> wrote:
>
> What are the benefits if any of putting a box keel on the Watervan, I
> notice that some designs have them and others don't, there is a
> modified Idaho design here in Australia called the Mundoo, one boat
> called the Nomad has a box keel that holds the battery banks and
> electric motors, my question: is there any other benefits to having a
> box keel.
>
> Glenn
>
If I remember my stability lessons correctly, the effect of free
surface in a tank is a function of breadth to the third power and
length to the first. It is, therefore advantageous to orient a large
tank longitudinally. This makes a tank in a box keelquite feasible.
surface in a tank is a function of breadth to the third power and
length to the first. It is, therefore advantageous to orient a large
tank longitudinally. This makes a tank in a box keelquite feasible.
--- Inbolger@yahoogroups.com, Kristine Bennett <femmpaws@...> wrote:
>
> The half full tank souldn't be any proublem if it's
> baffled. Also with the normal take is it a proublem? A
> tank is a tank. Unless they are real long!
>
The half full tank souldn't be any proublem if it's
baffled. Also with the normal take is it a proublem? A
tank is a tank. Unless they are real long!
My sweetie and I are talking about building a Fiddler
II and adding a box keel to it. She and I both agree
it needs to be about 5 feet inside and 5-6 would be
great! Four feet is just a bit to short even for her!
My old van was 4-6 inside and it was do-able.
And the way things are looking we may be moving down
in the area of Portland Or. She wants to be closer to
her family. So who knows what's going to happen.
Blessings Krissie
--- Bryant Owen <mariner@...> wrote:
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baffled. Also with the normal take is it a proublem? A
tank is a tank. Unless they are real long!
My sweetie and I are talking about building a Fiddler
II and adding a box keel to it. She and I both agree
it needs to be about 5 feet inside and 5-6 would be
great! Four feet is just a bit to short even for her!
My old van was 4-6 inside and it was do-able.
And the way things are looking we may be moving down
in the area of Portland Or. She wants to be closer to
her family. So who knows what's going to happen.
Blessings Krissie
--- Bryant Owen <mariner@...> wrote:
> Having spent some time on a Steve Guterman's__________________________________________________
> Watervan at the Kingston
> Messabout (seehttp://tinyurl.com/ybdt68) what you
> notice most is how
> the box keel allows extra headroom when moving fore
> and aft in the
> boat. As you can see in the next shot Watervan at
> rest or under bare
> headway is down a bit at the bow. And I'm not sure
> how a half filled
> belly tank would effect the move to
> planing/deplaning. Just me .02
>
> Bryant
>
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Having spent some time on a Steve Guterman's Watervan at the Kingston
Messabout (seehttp://tinyurl.com/ybdt68) what you notice most is how
the box keel allows extra headroom when moving fore and aft in the
boat. As you can see in the next shot Watervan at rest or under bare
headway is down a bit at the bow. And I'm not sure how a half filled
belly tank would effect the move to planing/deplaning. Just me .02
Bryant
Messabout (seehttp://tinyurl.com/ybdt68) what you notice most is how
the box keel allows extra headroom when moving fore and aft in the
boat. As you can see in the next shot Watervan at rest or under bare
headway is down a bit at the bow. And I'm not sure how a half filled
belly tank would effect the move to planing/deplaning. Just me .02
Bryant
--- Inbolger@yahoogroups.com, Kristine Bennett <femmpaws@...> wrote:
>
> I look a photo of the Watervan side view drawing and
> blew it up to 1 inch to the foot and the box keel
> comes out to 6 inches. So it would be a bit short to
> put batteries in.
>
> But it would work for a belly tank for fuel.
>
> Blessings all Krissie
>
> --- Bruce Hallman <bruce@...> wrote:
>
> > > Thanks for the feedback, It does look like a good
> > position for
> > > batteries etc.
> > >
> > > Glenn
> >
> > Perhaps under the aft bed, but the box keel looks to
> > be only 5 or 6
> > inches deep on Watervan.
> >
>
>
> __________________________________________________
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>
I look a photo of the Watervan side view drawing and
blew it up to 1 inch to the foot and the box keel
comes out to 6 inches. So it would be a bit short to
put batteries in.
But it would work for a belly tank for fuel.
Blessings all Krissie
--- Bruce Hallman <bruce@...> wrote:
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blew it up to 1 inch to the foot and the box keel
comes out to 6 inches. So it would be a bit short to
put batteries in.
But it would work for a belly tank for fuel.
Blessings all Krissie
--- Bruce Hallman <bruce@...> wrote:
> > Thanks for the feedback, It does look like a good__________________________________________________
> position for
> > batteries etc.
> >
> > Glenn
>
> Perhaps under the aft bed, but the box keel looks to
> be only 5 or 6
> inches deep on Watervan.
>
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> Thanks for the feedback, It does look like a good position forPerhaps under the aft bed, but the box keel looks to be only 5 or 6
> batteries etc.
>
> Glenn
inches deep on Watervan.
It can also make standing headroom possible. Clyde
Kristine Bennett wrote:
Kristine Bennett wrote:
> It also changes the waterplane loading at rest. So the[Non-text portions of this message have been removed]
> boat has less of a bow down look to it as in the
> Watervan. It also brakes a wave impact so it's not one
> big WOMP. It also helps to stiffen the bottom of the
> hull as well. It does a number of things all for the
> betterment of the hull I think.
>
> Blessings Krissie
>
> --- Bruce Hallman <bruce@...<mailto:bruce%40hallman.org>> wrote:
>
> > On 12/18/06, Glenn
> > <devinetemptations@...
> <mailto:devinetemptations%40aussieisp.net.au>> wrote:
> > >
> > >
> > > What are the benefits if any of putting a box keel
> > on the Watervan,
> >
> > The main reason Watervan has a box keel is to
> > facilitate planing.
> > When at speed, the hull rises up and efficiently
> > planes on the bottom
> > surface of the 'box keel'.
> >
>
> __________________________________________________
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>
>
--- Inbolger@yahoogroups.com, Kristine Bennett <femmpaws@...> wrote:
batteries etc.
Glenn
>Thanks for the feedback, It does look like a good position for
> --- Bruce Hallman <bruce@...> wrote:
>
batteries etc.
Glenn
It also changes the waterplane loading at rest. So the
boat has less of a bow down look to it as in the
Watervan. It also brakes a wave impact so it's not one
big WOMP. It also helps to stiffen the bottom of the
hull as well. It does a number of things all for the
betterment of the hull I think.
Blessings Krissie
--- Bruce Hallman <bruce@...> wrote:
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boat has less of a bow down look to it as in the
Watervan. It also brakes a wave impact so it's not one
big WOMP. It also helps to stiffen the bottom of the
hull as well. It does a number of things all for the
betterment of the hull I think.
Blessings Krissie
--- Bruce Hallman <bruce@...> wrote:
> On 12/18/06, Glenn__________________________________________________
> <devinetemptations@...> wrote:
> >
> >
> > What are the benefits if any of putting a box keel
> on the Watervan,
>
> The main reason Watervan has a box keel is to
> facilitate planing.
> When at speed, the hull rises up and efficiently
> planes on the bottom
> surface of the 'box keel'.
>
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On 12/18/06, Glenn <devinetemptations@...> wrote:
When at speed, the hull rises up and efficiently planes on the bottom
surface of the 'box keel'.
>The main reason Watervan has a box keel is to facilitate planing.
>
> What are the benefits if any of putting a box keel on the Watervan,
When at speed, the hull rises up and efficiently planes on the bottom
surface of the 'box keel'.
What are the benefits if any of putting a box keel on the Watervan, I
notice that some designs have them and others don't, there is a
modified Idaho design here in Australia called the Mundoo, one boat
called the Nomad has a box keel that holds the battery banks and
electric motors, my question: is there any other benefits to having a
box keel.
Glenn
notice that some designs have them and others don't, there is a
modified Idaho design here in Australia called the Mundoo, one boat
called the Nomad has a box keel that holds the battery banks and
electric motors, my question: is there any other benefits to having a
box keel.
Glenn