[C320-list] Weight of a 320

[Ken Geiger]

>From Wikipedia and Britanica



Archimedes’ principle,  physical law of buoyancy, discovered by the ancient Greek mathematician and inventor Archimedes, stating that any body completely or partially submerged in a fluid (gas or liquid) at rest is acted upon by an upward, or buoyant, force the magnitude of which is equal to the weight of the fluid displaced by the body. The volume of displaced fluid is equivalent to the volume of an object fully immersed in a fluid or to that fraction of the volume below the surface for an object partially submerged in a liquid. The weight of the displaced portion of the fluid is equivalent to the magnitude of the buoyant force. The buoyant force on a body floating in a liquid or gas is also equivalent in magnitude to the weight of the floating object and is opposite in direction; the object neither rises nor sinks. For example, a ship that is launched sinks into the ocean until the weight of the water it displaces is just equal to its own weight. As the ship is loaded, it sinks deeper, displacing more water, and so the magnitude of the buoyant force continuously matches the weight of the ship and its cargo.
 

 

 

---- Original Message ----
From: Don Brereton <yachtman165 at comcast.net>
To: C320-List <C320-List at Catalina320.com>
Sent: Wed, Jun 13, 2018 1:23 pm
Subject: Re: [C320-list] Weight of a 320

Any object or in this case a boat must displace more than it weighs or it will sink I believe.

Sent from my iPhone

> On Jun 12, 2018, at 9:03 PM, Greg Flanagan <greg.flanagan at shaw.ca> wrote:
> 
> I am confused: “Displacement is the volume of water displaced when the vessel is freely floating and such volume will equal the total weight of the boat and all items thereon at that time. It is a direct relation to overall weight.”
> 
> Thanks,
> 
> Greg 
> Hoop Dancer #1076
> Sidney, BC
> 
>> On Jun 12, 2018, at 12:45 PM, John Morrison <sail-ability at sympatico.ca> wrote:
>> 
>> My 1999#574 clicks in at 12700lb. 
>> JEM 1999#574
>> 
>> Sent from my iPhone
>> 
>>> On Jun 12, 2018, at 1:23 AM, Tony Belton <tbelton at gwrr.com> wrote:
>>> 
>>> Hi All,
>>> I'm the owner of hull 251, Shilo, located in Adelaide, South Australia. We cruise her around the local gulf waters and race in our club's twilight series. In our first year of owning Shilo we clocked up 1100 n/miles.
>>> Has anyone had reason to weigh their 320? I know the displacement but interested to know the weight.
>>> 
>>> Regards,
>>> Tony
>>> 
>>> Tony Belton | Transport Controller
>>> Genesee & Wyoming Australia Pty Ltd
>>> 1 Kidman Rd Dry Creek | PO Box 309, Marleston DC SA 5033
>>> Email: tbelton at gwrr.com<mailto:tbelton at gwrr.com> | Direct: +61 8 8343 7606 | Fax: +61 8 8343 7335
>>> Website: www.gwrr.com<http://www.gwrr.com/>
>>> If you are not the intended recipient of this email please advise the sender and destroy immediately
>>>