Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-09-2014, 22:23   #1
Registered User
 
DuaneGraham's Avatar

Join Date: Apr 2014
Location: Ontario, Canada
Boat: N/A At least not yet
Posts: 68
Possible to Retrofit Drop Keel?

So I'm interesed in owning a trailer sailer but looking at a 28 footer aloha, I haven't been able to find any with a drop/swing keel. Is it possible to convert a boat (economically) to have one? I'm looking at older models in 10-15 thousand dollar range. The reason I want to be able to load it on a trailer is because I have access to numerous lakes, and I do work full time so only two night trips max for me. If you have any advice, ESPECIALLY if you've attempted it please drop your 2 cents, thanks in advance, cheers.

Sent from my C6906 using Cruisers Sailing Forum mobile app
__________________

__________________
DuaneGraham is offline   Reply With Quote
Old 10-09-2014, 22:46   #2
Registered User

Join Date: Apr 2011
Posts: 2,243
Re: Possible to retrofit drop keel?

Sure. Here is the conversion procedure :

Sell boat with keel
Use money to buy boat with swing keel

Seriously though, the answer is a resounding no. A swing keel boat when done properly, is made from a different mould, with space for extra ballast below the hull. Look up bristol 31.1 centerboard. That truncated keel has to incorporate more ballast than the full keel version. Not saying that it can't be done, just that no sane person should attempt it.
__________________

__________________
MarkSF is offline   Reply With Quote
Old 10-09-2014, 22:57   #3
Registered User
 
DuaneGraham's Avatar

Join Date: Apr 2014
Location: Ontario, Canada
Boat: N/A At least not yet
Posts: 68
Re: Possible to retrofit drop keel?

Haha, well that sucks, but thank you for your detailed response. Guess I'd better keep looking. I see what you mean with the bristol. Good news is I haven't actually bought a boat yet, so I can safely omit step one!

Sent from my C6906 using Cruisers Sailing Forum mobile app
__________________
DuaneGraham is offline   Reply With Quote
Old 11-09-2014, 11:44   #4
Senior Cruiser
 
roverhi's Avatar

Cruisers Forum Supporter

Join Date: Aug 2005
Location: Kona, Hawaii, Carlsbad, CA
Boat: 1969 Pearson 35 #108 & 1976 Sabre 28
Posts: 6,003
Send a message via Yahoo to roverhi
Re: Possible to retrofit drop keel?

1st, you don't want a swing keel unless you'll only sail in protected waters.

Either go for a keel center board, drop keel like a Hobie 33, or a shallow draft boat that you can load on a trailer. The cost of modifying a boat into either a drop keel or keel centerboard would be excessive and quite probably not a good boat when you got done. The only way I'd attempt it is with a bolt on keel that could be recast to have a slot for a center board. Would definitely want a Naval Architect to do the design and the cost would easily run into 10s of boat units.

If you want a go anywhere trailerable boat, would look at a Tartan 27. You'd probably have to have a trailer made it for as have never seen one advertised as a trailer sailor and would need a real truck to tow it. The Compact line of boats are trailerable though probably not as large as you are looking at. Here's some listings of other centerboard boats on YachtWorld: http://sailboatdata.com/viewrecord.asp?CLASS_ID=1420

From reports on this site, the allure of trailor sailing seems to lose it's appeal quickly because of the hassles of raising and lowering the mast and the hassles of launching the boat. Takes more time to get the boat in and out of the water than actually sailing.
__________________
Peter O.
'Ae'a Pearson 35
roverhi is online now   Reply With Quote
Old 11-09-2014, 19:14   #5
Registered User
 
DuaneGraham's Avatar

Join Date: Apr 2014
Location: Ontario, Canada
Boat: N/A At least not yet
Posts: 68
Re: Possible to retrofit drop keel?

Thanks roverhi, If I would be looking at such a large amount of money with unpredictable results I'd have to scrap that idea. I would only be looking to spend approximately 15,000 on a boat so an additional 10 for a keel would be out of the question. I have however decided to budget for a carbon fiber mast to make it easier to raise and lower mast, but the idea of finding a suitable trailer sailer for the kind of setup is looking grim. I've not yet seen a tartan 27 or hobby in my search yet likely as they're out of my budget.

Sent from my C6906 using Cruisers Sailing Forum mobile app
__________________
DuaneGraham is offline   Reply With Quote
Old 11-09-2014, 19:24   #6
Senior Cruiser
 
Sailmonkey's Avatar

Cruisers Forum Supporter

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 5,764
Re: Possible to retrofit drop keel?

Carbon, in my experience with beach cats, does not always a lighter mast make.


Sent from my iPhone using Cruisers Sailing Forum
__________________
Sailmonkey is online now   Reply With Quote
Old 11-09-2014, 19:27   #7
Registered User
 
DuaneGraham's Avatar

Join Date: Apr 2014
Location: Ontario, Canada
Boat: N/A At least not yet
Posts: 68
Re: Possible to retrofit drop keel?

Actually I have now seen a hobby 33, at 20,000$ including a trailer that may just fit the bill. Thanks again, I was previously only looking at 28-30 thinking anything longer would be less likely to be trailerable.

Sent from my C6906 using Cruisers Sailing Forum mobile app
__________________
DuaneGraham is offline   Reply With Quote
Old 11-09-2014, 19:31   #8
Registered User
 
DuaneGraham's Avatar

Join Date: Apr 2014
Location: Ontario, Canada
Boat: N/A At least not yet
Posts: 68
Re: Possible to retrofit drop keel?

Quote:
Originally Posted by Sailmonkey View Post
Carbon, in my experience with beach cats, does not always a lighter mast make.


Sent from my iPhone using Cruisers Sailing Forum
Mmhmm sense this monkey makes?? the sailing force is not strong with me, how is it possible to be heavier?

Sent from my C6906 using Cruisers Sailing Forum mobile app
__________________
DuaneGraham is offline   Reply With Quote
Old 11-09-2014, 19:39   #9
Registered User

Join Date: Apr 2011
Posts: 2,243
Re: Possible to retrofit drop keel?

Question is : do you need the swing keel to make the boat more easily trailerable, or because you are sailing in shallow waters? People do trailer boats with fixed keels, you just need a special trailer and plenty of water to launch in.

Also why have you fixed your sights on an Aloha 28 in particular? I can't find any reference to a swing keep version, which is probably why you can't find one.

If you gave us more idea of your needs people might be able to suggest a boat.

A 28 is right at the upper limit of what is trailerable.

If you set your sights on a smaller boat, you would find a vast range of choices open up.

I suggest reading Small Craft Advisor for some examples of the myriad of nice, trailerable, seaworthy keelboats in the 14 to 25 ft range.

At the boat ramp near here in Redwood City, I've seen everything from West Wight Potters with a custom gaff rig, a home-built wooden cat boat, Catalina 22 and 25, and so on.
__________________
MarkSF is offline   Reply With Quote
Old 11-09-2014, 19:49   #10
Registered User

Join Date: Sep 2014
Posts: 2
Re: Possible to retrofit drop keel?

get a wing keel boat. there are some nice wing keels with 3 and a half foot drafts like a catalina 25, catalina 27, catalina 270, catalina 28, pearson 28-2, ect.... I think you could find a nice 28 foot boat that will suit your needs and also be able to be stored on a trailer as long as you have the truck to tow a 8,000 lb. boat
__________________
sdpinaz is offline   Reply With Quote
Old 11-09-2014, 19:51   #11
Registered User

Join Date: Apr 2011
Posts: 2,243
Re: Possible to retrofit drop keel?

A Hobie 33 is a 4000lb racing sled which is totally unsuitable to solo, overnight lake sailing.

It couldn't be more different from an Aloha 28.

Are you really looking for a boat or just a troll? I'm beginning to have my doubts.
__________________
MarkSF is offline   Reply With Quote
Old 11-09-2014, 19:52   #12
Registered User
 
DuaneGraham's Avatar

Join Date: Apr 2014
Location: Ontario, Canada
Boat: N/A At least not yet
Posts: 68
Re: Possible to retrofit drop keel?

Hey Mark, yeah I guess I'm sort of here and there with what I'm looking for, the aloha I particularly like the interior. I guess I got short sighted when I saw it and the fact it is/was Canadian made. But what I'm looking for is a type of man cave on the water. I want it to be operational single handed, inboard motor, I'm not too fussy on much but I'd like it to sleep at least 4 and more than anything a well laid out comfortable saloon for entertaining, drinking and cards at dock. I'm 30 years old and obviously not looking for a speedboat so not expecting to get anywhere quick just want to enjoy the ride. And am expecting to be buying something quite a few years old as even 20,000$ cdn for a nice hobie 33 is at the very top of my budget and wouldnt allow any extra for upgrading.

Sent from my C6906 using Cruisers Sailing Forum mobile app
__________________
DuaneGraham is offline   Reply With Quote
Old 11-09-2014, 19:58   #13
Registered User
 
DuaneGraham's Avatar

Join Date: Apr 2014
Location: Ontario, Canada
Boat: N/A At least not yet
Posts: 68
Re: Possible to retrofit drop keel?

Mark no I'm far from a troll, I've honestly been looking for the past year, but having difficulty as I like the stability and comfort of a larger boat, but like the ability to transport a smaller one.

Sent from my C6906 using Cruisers Sailing Forum mobile app
__________________
DuaneGraham is offline   Reply With Quote
Old 11-09-2014, 20:08   #14
Senior Cruiser
 
Sailmonkey's Avatar

Cruisers Forum Supporter

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 5,764
Re: Possible to retrofit drop keel?

Quote:
Originally Posted by DuaneGraham View Post
Mmhmm sense this monkey makes?? the sailing force is not strong with me, how is it possible to be heavier?

Sent from my C6906 using Cruisers Sailing Forum mobile app

Carbon masts (always with exceptions) tend to be of a heavier layup than is needed to make them strong enough to take abuse. My example is an Inter17 cat with a 31' carbon mast vs a Nacra f16 with a 30' alum stick. Very similar cross sections, the alum stuck is lighter by roughly 5 pounds.


Sent from my iPhone using Cruisers Sailing Forum
__________________
Sailmonkey is online now   Reply With Quote
Old 11-09-2014, 20:17   #15
Registered User
 
DuaneGraham's Avatar

Join Date: Apr 2014
Location: Ontario, Canada
Boat: N/A At least not yet
Posts: 68
Re: Possible to retrofit drop keel?

Well no matter the hobie 33 I found was gutted to lighten it for racing. Hard to imagine carbon being almost as heavy.

Sent from my C6906 using Cruisers Sailing Forum mobile app
__________________

__________________
DuaneGraham is offline   Reply With Quote
Reply

Tags
keel

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hydrofoil Retrofit for Small Power Boats knottybuoyz Construction, Maintenance & Refit 4 03-11-2010 06:33
Retrofit Hydraulic Ram Help Needed S/V_Surya Propellers & Drive Systems 0 20-10-2010 09:10
Retrofit to a Square-Top Main? Full Sail Deck hardware: Rigging, Sails & Hoisting 7 14-02-2010 09:07
Hunter 34 retrofit - Blog Fotoman Construction, Maintenance & Refit 5 15-10-2008 11:44
Considering A/C retrofit knottybuoyz Plumbing Systems and Fixtures 7 06-03-2008 08:33



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:46.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.