Clive Dent's CD310 31 foot sailboat design...

[Dana]

Perhaps some of the confusion between the former Alberg CD31 is the introduction of the Clive Dent Cape Dory 310 around 1991.



[img]http://members.aol.com/darenius/CD310.JPG[/img]
darenius@aol.com

[Dana]

BTW...this "310" was also known as the 30MKII as outlined in the Cape Dory Specs...just a different name under new ownership...

________________________________________________________

Perhaps some of the confusion between the former Alberg CD31 is the introduction of the Clive Dent Cape Dory 310 around 1991.

darenius@aol.com

[Larry DeMers]

Dana,

Well there you are! That IS the name that Robinhood Yachts mentioned to me, as the designer of the CD31 (apparently it's the CD310). Looking at the specs, it draws only 3'11" on a larger body than the 30, which draws 4'2", and has 4000 lbs. of ballast. The 31's ballast at 4200 lbs. and hanging only 3'11" down, combined with a higher freeboard, and wider beam seems to be concentrating the center of gravity somewhat higher up than the 30 has it..so being a bit more rolly at rest would be the result. Although, it could be also argued that the additional beam would tend to stabilize the boat, nullifying the extra weight, held up higher than the 30. So who knows.

I do like the line s of the 310 in that picture Dana. It looks good.

Any idea how many of the CD31MKII's were built? It is not even listed on the "Models Built" page of this listserver, so the total must be very small.

Cheers!

Larry DeMers
s/v DeLaMer
Cape Dory 30 ~~~~~~Sailing Lake Superior~~~~~

BTW...this "310" was also known as the 30MKII as outlined in the Cape Dory Specs...just a different name under new ownership...

________________________________________________________

Perhaps some of the confusion between the former Alberg CD31 is the introduction of the Clive Dent Cape Dory 310 around 1991.

demers@sgi.com

[Dana]

You can find the CD30MKII under "Cape Dorys" then "Specifications" under this website....lists about 30 of the CD30MKII built....how many sold under the CD310 label is unknown....BTW, I met Clive Dent at the Newport, RI International boat show when he had just completed the design of the CD motorsailer, nice guy and well qualified NA..

____________________

Dana,

Well there you are! That IS the name that Robinhood Yachts mentioned to me, as the designer of the CD31 (apparently it's the CD310). Looking at the specs, it draws only 3'11" on a larger body than the 30, which draws 4'2", and has 4000 lbs. of ballast. The 31's ballast at 4200 lbs. and hanging only 3'11" down, combined with a higher freeboard, and wider beam seems to be concentrating the center of gravity somewhat higher up than the 30 has it..so being a bit more rolly at rest would be the result. Although, it could be also argued that the additional beam would tend to stabilize the boat, nullifying the extra weight, held up higher than the 30. So who knows.

I do like the line s of the 310 in that picture Dana. It looks good.

Any idea how many of the CD31MKII's were built? It is not even listed on the "Models Built" page of this listserver, so the total must be very small.

Cheers!

Larry DeMers
s/v DeLaMer
Cape Dory 30 ~~~~~~Sailing Lake Superior~~~~~

BTW...this "310" was also known as the 30MKII as outlined in the Cape Dory Specs...just a different name under new ownership...

________________________________________________________

Perhaps some of the confusion between the former Alberg CD31 is the introduction of the Clive Dent Cape Dory 310 around 1991.

darenius@aol.com

[Bill Sonntag]

Thank you Dana for the information in your post regarding "CD310". That
promotional material was surely a new one on me, I have never heard of the boat
before. Where do you find this stuff?!

This does appear to put the matter of CD31 design (or should I say CD31's) to
rest. But I continue to agree with L. DeMer, the Alberg designed CD31 has
always struck me as having less than expected initial stability as it can be
"rolly" underfoot or in a swell or chop at anchor or longside a dock. Perhaps an
inherent characteristic of wineglass sectioned full keel sailboats. This may
also be the same reason for the "almost mystical" seakindlyness, seakeeping
abilities of Alberg designed boats. In deference to T. Cambria, CD31s are
surely not "tender" under sail in either light or heavy weather conditions.

I would also be interested in the number of CD310s manufactured. If this
material dates to '91, it was close to the moment of untimely demise for Cape
Dory.

Bill Sonntag





dalbers1@earthlink.net

[Catherine Monaghan]

The CD30MKII draws 4'6", I guess they chopped off a bit of her keel to get the CD310's draft down to 3'11" -- interesting.


catherine_monaghan@merck.com
CD32 <a href="http://www.hometown.aol.com/bcomet/real ... ization</a>, #3



catherine_monaghan@merck.com

[Larry Austin]

Hi Dana....very interesting information that you posted. I have the same brochere (sp) but it says CD30MKII on it. My brochere says 30, yours says 31, and my marina charges me for a 32!! So what is it?

Larry Austin
CD 30MKII, 31, 32
LAYLA



laustin@us.ibm.com

[Dana]

It is just a change of Model Name when the new Cape Dory Owners bought these molds from the former Cape Dory. But, in retrospect, it does cause confusion between former owners of the Classic CD31. Under the web boat specifications should be CD30MKII/CD310 and then CD31 by itself. BTW, your marina probably charges you extra because your actual boat length is 32 feet. Many of the CD specs are LOD, not LOA...you would be interested to know that my CD26 (LOD...25'11") is actually 27' 11" LOA.....so my marina owner carefully measured after pulling his 28' into the slip next to mine and said WHAT THE????...26 footer????

___________________________

Hi Dana....very interesting information that you posted. I have the same brochere (sp) but it says CD30MKII on it. My brochere says 30, yours says 31, and my marina charges me for a 32!! So what is it?

Larry Austin
CD 30MKII, 31, 32
LAYLA

darenius@aol.com

[John Nuttall]

....(aka CD310) that you refer to in your article? Could you have been on a MKII ??? My heavier, narrower, deeper & longer CD31 doesn't exhibit any of the characteristics you described. Ever.

I can't even consider it tender, for if you reef early - and you need to in order to balance the helm - it really doesn't list much. (that's saying alot from a former sail 'em flat go fast Sonar racer like me).

BTW, that is an interesting layout. Similar to the 32, which replaced the 31. Sure would be nice if Andy V. or some of the old CD crew would help us sort out the history and evolution of the designs. You think they read this board? Maybe that would take away some of the fun, eh?

John



nuttallj@msn.com

[Joe Sankey]

Some years ago Robinhood had a CD31 on brokerage to which they had added 700 lbs of additional ballast. The salesman told me this cured the 31's tendency to be tender, and had been done for that reason. I wonder if some of the variation in perception about "tender" could be traced to inconsistencies? Perhaps this became a pattern prior to the introduction of the 32.
Joe

....(aka CD310) that you refer to in your article? Could you have been on a MKII ??? My heavier, narrower, deeper & longer CD31 doesn't exhibit any of the characteristics you described. Ever.

I can't even consider it tender, for if you reef early - and you need to in order to balance the helm - it really doesn't list much. (that's saying alot from a former sail 'em flat go fast Sonar racer like me).

BTW, that is an interesting layout. Similar to the 32, which replaced the 31. Sure would be nice if Andy V. or some of the old CD crew would help us sort out the history and evolution of the designs. You think they read this board? Maybe that would take away some of the fun, eh?

John

sankey@gulftel.com

[Boyd Bundy]

Perhaps some of the confusion between the former Alberg CD31 is the introduction of the Clive Dent Cape Dory 310 around 1991.

I own TERN a Cape Dory 30MKII which is hull #1. I am told it was the boat show model. It was started in 1885 and completed in 1986 according to the hull ID #. It has a draft of 4'-6" and was also refered to as a 310 Contemporary in the literature which came with the boat. I dont think the designation was changed in '91. According to the literature it was designed by Clive Dent. My boat certainly does not exibit any tenderness and sails very comfortably. I have never managed to bury the rail. I does need headsail reefing or changes from a 150 at about 17 kt to lessen the weather helm. At 20 kt a first reef in the main helps flatten things out. The only pecurlarity I have noticed is at anchor if the current and wind are at odds the boat dances around the anchor excessively. Havent figured out why.



tern30@AOL.com