18 feet boat

On Sun, 30 Nov 2003 20:41:15 GMT, "christos" <sv1awr RemoveThis @techlink.gr>
wrote:

 >18 feet boat with an outboard motor of 350 pounds at the aft end how much
 >will submerged in the water
 >the boat weights 1600 pounds without engine.
 >christos
 >


Here's a person looking for a rough, rough estimate.
Use an equivalent box of 9 X 7 ft
that's 58530X gm for X submersion in cm

1600lb = 727273 gm
So submersion is 727273 / 58530 = 12.4 cm = 5 inches.
Another 2 inch aft with the motor.

Brian W<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 18 feet boat 

Or just get a coupla friends that weigh about 350 lbs and ... geez you know,
350 lbs is not that much

"Brian Whatcott" <betwys1.TakeThisOut@sbcglobal.net> wrote in message
news:ng0lsvc4bh0ietgtstuoi891nuinvpbq1k@4ax.com...
 > On Sun, 30 Nov 2003 20:41:15 GMT, "christos" <sv1awr.TakeThisOut@techlink.gr>
 > wrote:
 >
  > >18 feet boat with an outboard motor of 350 pounds at the aft end how much
  > >will submerged in the water
  > >the boat weights 1600 pounds without engine.
  > >christos
  > >
 >
 >
 > Here's a person looking for a rough, rough estimate.
 > Use an equivalent box of 9 X 7 ft
 > that's 58530X gm for X submersion in cm
 >
 > 1600lb = 727273 gm
 > So submersion is 727273 / 58530 = 12.4 cm = 5 inches.
 > Another 2 inch aft with the motor.
 >
 > Brian W<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 18 feet boat 

Get your old school books out & do a few calculations!!
One thing to remember is that if you find the waterline without any motor on
the boat & then hang the 350lbs on the stern, you will get some lifting of
the bow, so in actual fact the stern will probably go down the equivilent of
550lbs.
Because no-one here knows the shape of your boat, they won't be able to give
you much help.
Basically, if you increase the weight by 350lbs then your boat will displace
that much more weight IN WATER.
Using Aussie galls.
Assuming the water is distilled water, then it weighs 10lbs per gallon.
6.25 gallons per cu ft.
Equals 5.6 cu ft displaced.
Assuming your boat is 15.5ft at water line & average width at same line is
5.5ft.
By my calc if the 350 is placed at dead centre is approx 3/4 inch overall.
Now back to being on the stern??
My guess is bow up by 1 1/2 & stern down by 2 1/4 inches?
Anybody else want to have a guess?
BruceM


"christos" <sv1awr.DeleteThis@techlink.gr> wrote in message
news:LBsyb.158663$e6.5810870@twister2.libero.it...
 > 18 feet boat with an outboard motor of 350 pounds at the aft end how much
 > will submerged in the water
 > the boat weights 1600 pounds without engine.
 > christos
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 18 feet boat 

thanks all for the reply.

the boat is bought with the motor .
it has a V bottom is a planning hull
is an open center console type and the fuel tank is located in the center
line
boat is foam filled
the console is located from bow at 2.70 meters
the center of fuel tank is located 3.30 meters from the bow and is 1.8 metrs
long by 50cm by 28 cm
50 kgs batteries is under the console
waterline lenght is 4.92 mt max width 2.03 mt
what is your estimation for imersion of the boat in the salt water

christos


"christos" <sv1awr.RemoveThis@techlink.gr> wrote in message
news:LBsyb.158663$e6.5810870@twister2.libero.it...
 > 18 feet boat with an outboard motor of 350 pounds at the aft end how much
 > will submerged in the water
 > the boat weights 1600 pounds without engine.
 > christos
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 18 feet boat 

I give up ! ! tell us?
BruceM


"christos" <sv1awr.RemoveThis@techlink.gr> wrote in message
news:nNMyb.156413$vO5.6155875@twister1.libero.it...
 > thanks all for the reply.
 >
 > the boat is bought with the motor .
 > it has a V bottom is a planning hull
 > is an open center console type and the fuel tank is located in the center
 > line
 > boat is foam filled
 > the console is located from bow at 2.70 meters
 > the center of fuel tank is located 3.30 meters from the bow and is 1.8
metrs
 > long by 50cm by 28 cm
 > 50 kgs batteries is under the console
 > waterline lenght is 4.92 mt max width 2.03 mt
 > what is your estimation for imersion of the boat in the salt water
 >
 > christos
 >
 >
 > "christos" <sv1awr.RemoveThis@techlink.gr> wrote in message
 > news:LBsyb.158663$e6.5810870@twister2.libero.it...
  > > 18 feet boat with an outboard motor of 350 pounds at the aft end how
much
  > > will submerged in the water
  > > the boat weights 1600 pounds without engine.
  > > christos
  > >
  > >
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 18 feet boat 

bruce i dont know
i launch the boat in the water and i took following draft
fore 28 cm
aft 40 cm
boat contains 120 liters of gasoline
the strange thing is that the drain holes located at 30 cm height from keel
and the deck is 38 cm

have you ever seen a boat with this consruction or you can say what is the
weight of the boat with the cargo

christos


"BruceM" <bruce9950@@hotmail.com> wrote in message
news:3fcbe216@duster.adelaide.on.net...
 > I give up ! ! tell us?
 > BruceM
 >
 >
 > "christos" <sv1awr RemoveThis @techlink.gr> wrote in message
 > news:nNMyb.156413$vO5.6155875@twister1.libero.it...
  > > thanks all for the reply.
  > >
  > > the boat is bought with the motor .
  > > it has a V bottom is a planning hull
  > > is an open center console type and the fuel tank is located in the
center
  > > line
  > > boat is foam filled
  > > the console is located from bow at 2.70 meters
  > > the center of fuel tank is located 3.30 meters from the bow and is 1.8
 > metrs
  > > long by 50cm by 28 cm
  > > 50 kgs batteries is under the console
  > > waterline lenght is 4.92 mt max width 2.03 mt
  > > what is your estimation for imersion of the boat in the salt water
  > >
  > > christos
  > >
  > >
  > > "christos" <sv1awr RemoveThis @techlink.gr> wrote in message
  > > news:LBsyb.158663$e6.5810870@twister2.libero.it...
   > > > 18 feet boat with an outboard motor of 350 pounds at the aft end how
 > much
   > > > will submerged in the water
   > > > the boat weights 1600 pounds without engine.
   > > > christos
   > > >
   > > >
  > >
  > >
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 18 feet boat 

I'm sorry Christos, but there's not really enough info for me to comment. I
can only guess what the boat really looks like. Usually in most boats of
that size there are two different drain plugs. One within an inch or so of
the absolute bottom of the boat. This is to drain the below deck compartment
among some other functions like maybe checking if your below deck fuel tank
has sprung a leak!
The one higher up is for draining the deck area and for washing down after
an outing. On many boats this is slightly lower than the deck because there
is a slight well at the back of the deck to "collect" the water.
Now to contradict that last one, there are more & more boats now being
designed with "self draining decks", with scuppers attached to holes at the
rear of the deck.
The measurements don't mean a lot really because unless I know the deadrise
& lots of other details, then I can't comment.
Why are you concerned? Does it look too low in the water?
Are you sure that the 30 CM holes aren't just from the outboard well?
brumer


"christos" <sv1awr.TakeThisOut@techlink.gr> wrote in message
news:0t4zb.158498$vO5.6232841@twister1.libero.it...
 > bruce i dont know
 > i launch the boat in the water and i took following draft
 > fore 28 cm
 > aft 40 cm
 > boat contains 120 liters of gasoline
 > the strange thing is that the drain holes located at 30 cm height from
keel
 > and the deck is 38 cm
 >
 > have you ever seen a boat with this consruction or you can say what is the
 > weight of the boat with the cargo
 >
 > christos
 >
 >
 > "BruceM" <bruce9950@@hotmail.com> wrote in message
 > news:3fcbe216@duster.adelaide.on.net...
  > > I give up ! ! tell us?
  > > BruceM
  > >
  > >
  > > "christos" <sv1awr.TakeThisOut@techlink.gr> wrote in message
  > > news:nNMyb.156413$vO5.6155875@twister1.libero.it...
   > > > thanks all for the reply.
   > > >
   > > > the boat is bought with the motor .
   > > > it has a V bottom is a planning hull
   > > > is an open center console type and the fuel tank is located in the
 > center
   > > > line
   > > > boat is foam filled
   > > > the console is located from bow at 2.70 meters
   > > > the center of fuel tank is located 3.30 meters from the bow and is 1.8
  > > metrs
   > > > long by 50cm by 28 cm
   > > > 50 kgs batteries is under the console
   > > > waterline lenght is 4.92 mt max width 2.03 mt
   > > > what is your estimation for imersion of the boat in the salt water
   > > >
   > > > christos
   > > >
   > > >
   > > > "christos" <sv1awr.TakeThisOut@techlink.gr> wrote in message
   > > > news:LBsyb.158663$e6.5810870@twister2.libero.it...
   > > > > 18 feet boat with an outboard motor of 350 pounds at the aft end how
  > > much
   > > > > will submerged in the water
   > > > > the boat weights 1600 pounds without engine.
   > > > > christos
   > > > >
   > > > >
   > > >
   > > >
  > >
  > >
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 18 feet boat