There was a discussion with some diagrams shortly after I built my NE dory. It looked very doable; might have been that one was built but I can't find it now. Maybe your search will be better or someone remembers. i would like to put one on mine. Barry

I came across a discussion of the subjec somewhere on this site but don’t recall the page. Basically, if I remember correctly, John H. described the issue having to do with the center of effort of CB vs. DB. The daggerboard is raked aft quite a bit and center of effort falls somewhere under the center thwart. A CB would interfere with the thwart, compromise the rowing position and move the center of effort too far forward making it impossible to achieve neutral helm. Sorry, best I can do from memory.

ev

"Lilian Bailey" above is a fraudulent spammer pretending to be a boatbuilder. The link is for a plagiarizing paper mill, and not a very good one at that. The grammar in "her" post is obviously that of a foreign speaker, probably Russian due to the lack of articles. The post also has almost no connection with the thread topic.

Besides being unethical, would you really want to buy a paper for high school or college from someone who wrote English so poorly? Teachers and professors would spot the plagiarism in an instant and flunk you immediately.

Chances are, the link would take you to a malware site because they can't actually be making money off such an inferior product.

Beware,

Laszlo

   I know a college professor. All of their assignments are turned in electronically. Each paper goes through a plagiarism soft ware program.  It spots similarities not just copies. The data base is massive.  Besides most purchased papers do not match the subject matter, assignment, etc. .....or in this case english though patterns and sentance structure. 

You're not going to get any arguments from me over the advantages of centerboards in shallow water.  Where it makes the most sense, I've specified a centerboard.  The Southwester Dory, PocketShip, Outrigger Junior, Faering Cruiser, Skerry Raid, CLC Faering, and NanoShip all have pivoting centerboards.

Those seven designs have something else in common:  they are an order of magnitude more complex to build compared to our most popular sailing designs:  the Northeaster Dory, Skerry, Passagemaker, Eastport Pram, and Jimmy Skiff.

You can build about five daggerboard trunks in the time it takes to execute a good centerboard arrangement. On balance, I think it's a worthwhile trade-off. The simple boats tend to get finished and used, and that's that.

It's worth observing that the four most popular small sailboats in the world are all daggerboarders: the Sunfish, the Laser, the Optimist Pram, and the Snipe.  I grew up sailing three out of four of those and managed in shallow water just fine.

As far as simply plugging a centerboard into place instead of a daggerboard...it's more complicated than that. Centerboards take up a lot of room in the interior compared to a daggerboard. As it happens, swapping in a centerboard would be so disruptive to the interior layouts of our daggerboard boats as to be all but impossible. The diagram below walks you through my thinking on the Northeaster Dory, and how that boat came to have a daggerboard.

The Skerry Raid comes up, but it's the exception that proves the rule: it's not a stock Skerry with a deck and a centerboard trunk. It has a completely different hull shape and rig, and the interior has been designed around the centerboard.

(Click to embiggen.)