I'm not engineer enough to calculate the volume based on the
information you gave but I'm very intuitive about such things
so I'll venture a guess. From your description, though it's not
the best, I guess that you had a pump fill up your cockpit
with fresh water? Then you let it drain to see how long it
would take? Double two-inch hoses indicate the scupper
system but the six-inch head has me puzzled so I'm going to
assume six inches from the sole of the cockpit to the LWL
but one would need the depth of your cockpit because true
head would start at the height of your coamings above LWL
to and diminish to six inches above LWL as the water level
degreased. If draining occurs in 68 seconds you have a
seaworthy system.

My guess 64 cubic feet of volume in your cockpit.

S.Simon - another Amazing Randi


"Capt. Mooron" wrote in message ...
My cockpit drains in 68 seconds.... from completely full to the coamings to
empty. Aprox. 5 gallons drained/leaked into the bilge. Done in fresh water
with 2 divers and a gas pump. Double 2" hoses and a 6 inch head.

Any of you engineers care to calc the volume of my cockpit via that claim?
;-)


CM

"Simple Simon" wrote in message
...
| My cockpit measures . . .
|
| Five feet long, by two feet wide by 16 inches deep.
|
| Let's figure the total area that can flood with water in
| boarding sea conditions. Five times two is ten times 1.5
| (rounding up a couple inches) equals fifteen cubic feet.
|
| A cubic foot of water weighs 52 pounds, fifteen times
| 52 equals 780 pounds. That's a lot of weight - about
| the same as four men in the cockpit. It won't swamp
| or sink the boat but it will put the transom down about
| four inches.
|
| Now you do some measuring and calculate the volume
| of water that fancy pants C&C 34 XL can hold. I bet
| it's an order of magnitude of mine times at least five because
| in its case you've got to figure the volume including the
| coamings because it doesn't have a cut out in the transom
| like my fine, seaworthy Coronado has. Any boarding wave
| will quickly pour out the "Cut the Mustard's" transom while
| a crummy C&C 34 XL cockpit will fill to the top of the
| coamings and the water will stay there until it all can drain
| from what are probably very inadequate scuppers prone to
| becoming plugged up. Before it can even think of draining
| all the way here comes yet another wave to fill it up to the
| top again. Bwahahahahaah!
|
| If my fine yacht can hold 800 pounds of water in her
| cockpit they your precious 34XL can probably hold
| 4000 pounds - enough to sink the stern and keep it
| sunk. Think again about your cockpit parties at the
| dock. Are they worth it when your "perfect" boat isn't
| even seaworthy?
|
| S.Simon - knows all facets of sailing and dangers thereof.
|
| "Bobsprit" wrote in message
...
| Most of us sail coastal waters where a tiny blue water style cockpit is
| pointless. Capt. neal's cockpit is 7 feet long.
|
| RB
|
|