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Greg Stoll
10-29-2004, 04:50 PM
I am considering converting my 19' Bartender into an auxiliary sailboat. I've seen it done before, with reported good results. I don't expect to go fast or anything, I'd just like another option for propulsion.

The "prototype" has a single centerboard of what I would consider small to normal size for the size of boat. However, the centerboard would be obtrusive given the interior layout of my boat. So, I was thinking of putting in two smaller centerboards that weren't as high, but would still have roughly the same lateral surface area and therefore lateral resistance as the single board. I would make the tops of the trunks even with the self-bailing deck level.

Is this reasonable, both from a technical and sail performance aspect?

Greg

hikingchrs
11-03-2004, 08:52 AM
Hi Greg,
Can you post some pics of your boat?
Maybe even draw in what you think the rig should look like.
Chris

WindHawk
11-03-2004, 01:29 PM
I considered converting a 19 year old bartender into my wife once, but she left me for a guy with money...

Sorry, that was just too easy (although, it happens to be true).

paladin
11-03-2004, 01:45 PM
I got a new dink fer my wife..........best trade I ever made.. ;)

Bruce Hooke
11-03-2004, 03:00 PM
I've thought a bit about twin centerboards...on the one hand they offer the opportunity to fine tune the balance of the sailboat "on the fly" by pulling partway up one or the other of the centerboards. On the other hand, it seems like they would make it harder to make quick turns, so you might find yourself needing to pull up one of the centerboards if you want to make a quick turn.

By the way, for those who want some pictures to "work with"...this website has a bunch of pictures of bartenders: http://bartenderboats.com/

stevenj
11-03-2004, 04:10 PM
Greg, check out the yahoo-group 'bartenderboat'.... George himself added a sail to one of his bartenders..... those folks could provide much more info than I.

here's a drawing of the bartender w/ sail:bartender sail plan (http://www.stripersonline.com/ubb547/image_uploads3/bartendersailplan.JPG)

good luck,
stevenj

Ian McColgin
11-03-2004, 04:12 PM
Irving Johnson insisted on twin steel centerboards for the ketch Yankee partly to keep the draft down, partly for the interior, and at least partly because sometimes he'd "anchor" by just lowering those heavy boards to the mud.

At anyrate, if you go metal, you'll gain some nice stability into the deal. Possible disadvantages: A steel board once bent is a huge problem. A traditionally built wooden board can take a surprising beating and survive. I hit a bar with Goblin going about 8 knots on a reach with the board down. Given the boat's heel, the sideways impact from the board's perspective and the water pressure, the board could not simply swing up. The boat lifted her stern and we could even feel the results of the fact that the board had deflected and straightened out when we stopped. I doubt any metal board could have handled Goblin's 12 tons so ably.

The other disadvantage is if the weight/stability is more trouble than help. Depending on how it harmonizes with the rig, you might end up giving your boat either a deep roll or a wicked snap.

One aspect of modification you've not mentioned is the rudder. Will you have enough surface to steer the boat at low sailing speed without the asset of the propwash?

Things to contemplate as you talk to your NA or designer.

stevenj
11-03-2004, 04:14 PM
Greg, check out the yahoo-group 'bartenderboat'.... George himself added a sail to one of his bartenders..... those folks could provide much more info than I.

here's a drawing of the bartender w/ sail:bartender sail plan (http://www.stripersonline.com/ubb547/image_uploads3/bartendersailplan.JPG)

good luck,
stevenj

Greg Stoll
11-04-2004, 10:31 PM
Thanks for all your responses. Here is a picture of the boat:

http://www.imagestation.com/picture/sraid69/pcc5a93dbd33c0d76d8b30419d4242ecf/fbabd009.jpg

Here is a picture of the sailplan drawn by Mr. Calkins.

http://www.imagestation.com/picture/sraid145/pd96fcf217b00613f4b055633ac2864df/f65fb3fb.jpg

There was one boat built by Mr. Calkins to this plan, and the new owner apparently hasn't sailed it yet.

I floated the idea to the Bartender Group, with a mostly non-negative response. I figured I'd get the opinions on dual centerboards from some sailors here who may have experience with them. My main reasons for wanting dual centerboards is so that I can put a fuel tank amidships and not have a centerboard sticking up into the deck.

Any other thoughts on this plan?

Greg

P.S.

Stevenj, thanks for steering me towards the Bartender Group. Although I'm already a moderator there, I appreciate your helping the group to expand.