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Centerboard necessary?


 

I do have to agree with the purists of you T27 Owners who say that the boat sails better with the centerboard than without.? That said, I also raced my T27 for a bit and I can remember one light wind race where we did quite well without using the board (something about the current in our Hudson River that goes up and down).? Also, if you look at boats from a similar vintage and heft you might find that there are very few builders that included centerboards into their design.? Many of the boats that were contemporaries of our boats have almost the same hull shape but no centerboard.??





While S&S (Sparkman & Stephens) did not design the above boats, they all copied each others designs (somewhat).? Who copied who is a question I can't answer.? S&S considered the centerboard necessary in order to differentiate their design from the competition and I believe that is borne out in the sailing of the boat (with centerboard).? Without a centerboard it might as well be a Cape Dory 27 or an old Pearson Ariel (both nice boats btw).

For your consideration.

Caleb D
T27 #328

On Friday, September 15, 2023 at 04:04:09 PM EDT, SCOTT ROSASCO via groups.io <srosa25043@...> wrote:


It would be a shame to actually have a centerboard in the boat, but not use it, by incapacitating it. Sure, you can “sail”, if that’s what you want to call it, without it. But there is simply no way you can point as high, close to the wind, as a comparable boat with one. Go find yourself one and have a race. You won’t be winning. If you want to put the sails up and look pretty, sure, but you are simply not using the boat to it’s fullest potential without the centerboard. The boat was designed by one of the most famous naval architects in the world. If it sailed well without it, it wouldn’t be there.



On Sep 15, 2023, at 3:44 PM, flyingcloud1772 <tagman38@...> wrote:

?
Tartan #616 here. ?I race “Rosie” 2-3 times a week…. ?I use my center board all the time. ? A must in winds that are over 12+ ? Otherwise way to much weather helm. ?A shame not to be able to have it.?

Todd?



On Sep 15, 2023, at 2:29 PM, Dave Jepsky via groups.io <davejepsky@...> wrote:

?
Hi,

After following this I have to put my 2 cents in.? If you are not planning to use the centerboard; Why not drill a small hole through the bottom of the keel and the centerboard when the board is up and just put a SS bolt through the keel and board to keep the board up.? Seems a lot easier than removing the pivot bolt or adding a new pennant.

Dave
Dejale'? T27 #427 Once upon a time.

On Friday, September 15, 2023 at 08:50:16 AM PDT, Scott Walters <scrottie@...> wrote:


I don't often get invited to just weigh in with an opinion (certainly
never at work).? I'm not sure what to do with the power, but I'm high
on it.? Thank you for that.

Servicing the pivot pin, centerboard, and uphaul if not important to
you may be to someone else later.? And I also think you should find a
nice blustery day and try the centerboard out at least once before
giving up on it.? It might be considered safety gear, if you or anyone
else ever needs to tack in a blow and she's too slow coming about
without it.

Having to service the thing or anything else isn't fun, but it's at
least fairly straight forward, though I've read and been told that
it's really a two person job to pull and replace the pivot pin.

The bronze caps on the pivot pin on the forward part of the
centerboard trunk under the sole should come off.? If they're stuck
and they require torque to get off, I recommend first re-enforcing the
fiberglass in the area around the bronze pipe out of the centerboad
trunk.? #93 came to me with hairline cracks in a circle around the
portside base of the pivot pin, I believe from someone at some point
torquing a seized cap off.? You should be able to remove both caps,
then use a drift or screwdriver or similar to push the pin out one
side, while someone or blocking supports the centerboard from below to
reduce pressure on the pivot pin.? The pivot pin may need to be
replaced, and the centerboard may need machine shop work (there I go
again) if worn too thin at the hole for the pivot pin.? If not, it may
need to be cleaned up (sanded) and then maybe some fiberglass epoxy
layup protecting the stainless steel (cuz stainless steel ain't all
that great) around the pivot pin.? If the board has advanced corrosion
that's causing the fiberglass for a large amount of the entire thing
to split apart, then rebuilding it is much larger job, or else you're
possibly just replacing it.? I think someone in here rebuilt one out
of G10.? You'll know more when you see it.? If it's just a matter of
cleaning up the pivot pin hole and uphaul hole, that's a fairly quick
job.? Reinstalling it where it really becomes a two person job, I'm
lead to understand.? Trying to get the pivot pin hole in the board
lined up with the pipes in the forward part of the centerboard trunk
is a trick.? You might start with a sharpened piece of rod to get
through the hole and use that to align the board, then stick in the
replacement pivot pin.? Then put the caps back on (obviously).

Given re-installing the thing is more or less a two person job, it
might be a good job for the yard, after you're done unclogging the
uphaul tube, making sure the caps will come off, etc.

A daggerboard instead of a centerboard would steal valuable room from
the main saloon, but I'm toying with the idea anyway.

-scott

On 9/15/23, Patrick McGough <patrick.mcgough@...> wrote:
> Good Morning,
>
>
>
> So I have arranged with a local boatyard to pull Petrel on Tuesday morning.
> I explained what I was in need of doing and the marina manager told me that
> they can’t block me real high and said that they might just leave me in the
> lift and let me work on her there.? Caleb, I have one of those endoscopes
> and I am going to go see if I can see what is blocking the tube.? So I
> wanted to ask the group these couple of questions:
>
> *??? If I am going to lift her high enough that the centerboard swings
> completely down, and if I decide to just remove the centerboard, what will I
> need to remove the pin that holds it in place?
> *??? If I am going to keep the centerboard and continue down the course of
> inserting a Dyneema line, then I clearly have to be able to get to the
> connection point and the boat has to be high enough to get to that point, I
> just have to clear the tube of whatever seems to be obstructing the easy and
> try to reduce chafe although if I am just doing all of this to basically
> secure the centerboard to never ever use it then chafe is not going to be a
> concern
>
>
>
> I guess right now I am leaning toward removing the pin, removing the
> centerboard, glassing over the two points that give me access to the pin,
> leaving the trunk open.
>
>
>
> Any and all comments, guidance, and tips are greatly appreciated.? As I told
> the manager, I want to get this fixed so I can get some fall sailing in.
> Right now that centerboard prohibits me from getting back and forth into my
> dock because I don’t have the 6 feet that it needs to clear.
>
>
>
> Have a great weekend.
>
>
>
> Patrick
>
>













 

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?I think Caleb should organize an East Coast Owners Rendezvous at Nyack Boat Club next year and we can test these opinions out. Maybe get a class start in their weekly Wednesday evening races.
Caleb?


On Sep 15, 2023, at 6:32 PM, Caleb Davison via groups.io <calebjess@...> wrote:

?
I do have to agree with the purists of you T27 Owners who say that the boat sails better with the centerboard than without.? That said, I also raced my T27 for a bit and I can remember one light wind race where we did quite well without using the board (something about the current in our Hudson River that goes up and down).? Also, if you look at boats from a similar vintage and heft you might find that there are very few builders that included centerboards into their design.? Many of the boats that were contemporaries of our boats have almost the same hull shape but no centerboard.??





While S&S (Sparkman & Stephens) did not design the above boats, they all copied each others designs (somewhat).? Who copied who is a question I can't answer.? S&S considered the centerboard necessary in order to differentiate their design from the competition and I believe that is borne out in the sailing of the boat (with centerboard).? Without a centerboard it might as well be a Cape Dory 27 or an old Pearson Ariel (both nice boats btw).

For your consideration.

Caleb D
T27 #328

On Friday, September 15, 2023 at 04:04:09 PM EDT, SCOTT ROSASCO via groups.io <srosa25043@...> wrote:


It would be a shame to actually have a centerboard in the boat, but not use it, by incapacitating it. Sure, you can “sail”, if that’s what you want to call it, without it. But there is simply no way you can point as high, close to the wind, as a comparable boat with one. Go find yourself one and have a race. You won’t be winning. If you want to put the sails up and look pretty, sure, but you are simply not using the boat to it’s fullest potential without the centerboard. The boat was designed by one of the most famous naval architects in the world. If it sailed well without it, it wouldn’t be there.



On Sep 15, 2023, at 3:44 PM, flyingcloud1772 <tagman38@...> wrote:

?
Tartan #616 here. ?I race “Rosie” 2-3 times a week…. ?I use my center board all the time. ? A must in winds that are over 12+ ? Otherwise way to much weather helm. ?A shame not to be able to have it.?

Todd?



On Sep 15, 2023, at 2:29 PM, Dave Jepsky via groups.io <davejepsky@...> wrote:

?
Hi,

After following this I have to put my 2 cents in.? If you are not planning to use the centerboard; Why not drill a small hole through the bottom of the keel and the centerboard when the board is up and just put a SS bolt through the keel and board to keep the board up.? Seems a lot easier than removing the pivot bolt or adding a new pennant.

Dave
Dejale'? T27 #427 Once upon a time.

On Friday, September 15, 2023 at 08:50:16 AM PDT, Scott Walters <scrottie@...> wrote:


I don't often get invited to just weigh in with an opinion (certainly
never at work).? I'm not sure what to do with the power, but I'm high
on it.? Thank you for that.

Servicing the pivot pin, centerboard, and uphaul if not important to
you may be to someone else later.? And I also think you should find a
nice blustery day and try the centerboard out at least once before
giving up on it.? It might be considered safety gear, if you or anyone
else ever needs to tack in a blow and she's too slow coming about
without it.

Having to service the thing or anything else isn't fun, but it's at
least fairly straight forward, though I've read and been told that
it's really a two person job to pull and replace the pivot pin.

The bronze caps on the pivot pin on the forward part of the
centerboard trunk under the sole should come off.? If they're stuck
and they require torque to get off, I recommend first re-enforcing the
fiberglass in the area around the bronze pipe out of the centerboad
trunk.? #93 came to me with hairline cracks in a circle around the
portside base of the pivot pin, I believe from someone at some point
torquing a seized cap off.? You should be able to remove both caps,
then use a drift or screwdriver or similar to push the pin out one
side, while someone or blocking supports the centerboard from below to
reduce pressure on the pivot pin.? The pivot pin may need to be
replaced, and the centerboard may need machine shop work (there I go
again) if worn too thin at the hole for the pivot pin.? If not, it may
need to be cleaned up (sanded) and then maybe some fiberglass epoxy
layup protecting the stainless steel (cuz stainless steel ain't all
that great) around the pivot pin.? If the board has advanced corrosion
that's causing the fiberglass for a large amount of the entire thing
to split apart, then rebuilding it is much larger job, or else you're
possibly just replacing it.? I think someone in here rebuilt one out
of G10.? You'll know more when you see it.? If it's just a matter of
cleaning up the pivot pin hole and uphaul hole, that's a fairly quick
job.? Reinstalling it where it really becomes a two person job, I'm
lead to understand.? Trying to get the pivot pin hole in the board
lined up with the pipes in the forward part of the centerboard trunk
is a trick.? You might start with a sharpened piece of rod to get
through the hole and use that to align the board, then stick in the
replacement pivot pin.? Then put the caps back on (obviously).

Given re-installing the thing is more or less a two person job, it
might be a good job for the yard, after you're done unclogging the
uphaul tube, making sure the caps will come off, etc.

A daggerboard instead of a centerboard would steal valuable room from
the main saloon, but I'm toying with the idea anyway.

-scott

On 9/15/23, Patrick McGough <patrick.mcgough@...> wrote:
> Good Morning,
>
>
>
> So I have arranged with a local boatyard to pull Petrel on Tuesday morning.
> I explained what I was in need of doing and the marina manager told me that
> they can’t block me real high and said that they might just leave me in the
> lift and let me work on her there.? Caleb, I have one of those endoscopes
> and I am going to go see if I can see what is blocking the tube.? So I
> wanted to ask the group these couple of questions:
>
> *??? If I am going to lift her high enough that the centerboard swings
> completely down, and if I decide to just remove the centerboard, what will I
> need to remove the pin that holds it in place?
> *??? If I am going to keep the centerboard and continue down the course of
> inserting a Dyneema line, then I clearly have to be able to get to the
> connection point and the boat has to be high enough to get to that point, I
> just have to clear the tube of whatever seems to be obstructing the easy and
> try to reduce chafe although if I am just doing all of this to basically
> secure the centerboard to never ever use it then chafe is not going to be a
> concern
>
>
>
> I guess right now I am leaning toward removing the pin, removing the
> centerboard, glassing over the two points that give me access to the pin,
> leaving the trunk open.
>
>
>
> Any and all comments, guidance, and tips are greatly appreciated.? As I told
> the manager, I want to get this fixed so I can get some fall sailing in.
> Right now that centerboard prohibits me from getting back and forth into my
> dock because I don’t have the 6 feet that it needs to clear.
>
>
>
> Have a great weekend.
>
>
>
> Patrick
>
>
















 

Hey folks....my 2 cents.... tartan 27s are great boats... but not fast by today's standards.... centerboard helps a bit when pointing...but I rarely mess with it otherwise....but I m not trying to find a quarter knot!.... cheers mm....hull 308


On Fri, Sep 15, 2023, 6:32 PM Caleb Davison via <calebjess=[email protected]> wrote:
I do have to agree with the purists of you T27 Owners who say that the boat sails better with the centerboard than without.? That said, I also raced my T27 for a bit and I can remember one light wind race where we did quite well without using the board (something about the current in our Hudson River that goes up and down).? Also, if you look at boats from a similar vintage and heft you might find that there are very few builders that included centerboards into their design.? Many of the boats that were contemporaries of our boats have almost the same hull shape but no centerboard.??





While S&S (Sparkman & Stephens) did not design the above boats, they all copied each others designs (somewhat).? Who copied who is a question I can't answer.? S&S considered the centerboard necessary in order to differentiate their design from the competition and I believe that is borne out in the sailing of the boat (with centerboard).? Without a centerboard it might as well be a Cape Dory 27 or an old Pearson Ariel (both nice boats btw).

For your consideration.

Caleb D
T27 #328

On Friday, September 15, 2023 at 04:04:09 PM EDT, SCOTT ROSASCO via <srosa25043=[email protected]> wrote:


It would be a shame to actually have a centerboard in the boat, but not use it, by incapacitating it. Sure, you can “sail”, if that’s what you want to call it, without it. But there is simply no way you can point as high, close to the wind, as a comparable boat with one. Go find yourself one and have a race. You won’t be winning. If you want to put the sails up and look pretty, sure, but you are simply not using the boat to it’s fullest potential without the centerboard. The boat was designed by one of the most famous naval architects in the world. If it sailed well without it, it wouldn’t be there.



On Sep 15, 2023, at 3:44 PM, flyingcloud1772 <tagman38@...> wrote:

?
Tartan #616 here.? I race “Rosie” 2-3 times a week….? I use my center board all the time. ? A must in winds that are over 12+ ? Otherwise way to much weather helm.? A shame not to be able to have it.?

Todd?



On Sep 15, 2023, at 2:29 PM, Dave Jepsky via <davejepsky=[email protected]> wrote:

?
Hi,

After following this I have to put my 2 cents in.? If you are not planning to use the centerboard; Why not drill a small hole through the bottom of the keel and the centerboard when the board is up and just put a SS bolt through the keel and board to keep the board up.? Seems a lot easier than removing the pivot bolt or adding a new pennant.

Dave
Dejale'? T27 #427 Once upon a time.

On Friday, September 15, 2023 at 08:50:16 AM PDT, Scott Walters <scrottie@...> wrote:


I don't often get invited to just weigh in with an opinion (certainly
never at work).? I'm not sure what to do with the power, but I'm high
on it.? Thank you for that.

Servicing the pivot pin, centerboard, and uphaul if not important to
you may be to someone else later.? And I also think you should find a
nice blustery day and try the centerboard out at least once before
giving up on it.? It might be considered safety gear, if you or anyone
else ever needs to tack in a blow and she's too slow coming about
without it.

Having to service the thing or anything else isn't fun, but it's at
least fairly straight forward, though I've read and been told that
it's really a two person job to pull and replace the pivot pin.

The bronze caps on the pivot pin on the forward part of the
centerboard trunk under the sole should come off.? If they're stuck
and they require torque to get off, I recommend first re-enforcing the
fiberglass in the area around the bronze pipe out of the centerboad
trunk.? #93 came to me with hairline cracks in a circle around the
portside base of the pivot pin, I believe from someone at some point
torquing a seized cap off.? You should be able to remove both caps,
then use a drift or screwdriver or similar to push the pin out one
side, while someone or blocking supports the centerboard from below to
reduce pressure on the pivot pin.? The pivot pin may need to be
replaced, and the centerboard may need machine shop work (there I go
again) if worn too thin at the hole for the pivot pin.? If not, it may
need to be cleaned up (sanded) and then maybe some fiberglass epoxy
layup protecting the stainless steel (cuz stainless steel ain't all
that great) around the pivot pin.? If the board has advanced corrosion
that's causing the fiberglass for a large amount of the entire thing
to split apart, then rebuilding it is much larger job, or else you're
possibly just replacing it.? I think someone in here rebuilt one out
of G10.? You'll know more when you see it.? If it's just a matter of
cleaning up the pivot pin hole and uphaul hole, that's a fairly quick
job.? Reinstalling it where it really becomes a two person job, I'm
lead to understand.? Trying to get the pivot pin hole in the board
lined up with the pipes in the forward part of the centerboard trunk
is a trick.? You might start with a sharpened piece of rod to get
through the hole and use that to align the board, then stick in the
replacement pivot pin.? Then put the caps back on (obviously).

Given re-installing the thing is more or less a two person job, it
might be a good job for the yard, after you're done unclogging the
uphaul tube, making sure the caps will come off, etc.

A daggerboard instead of a centerboard would steal valuable room from
the main saloon, but I'm toying with the idea anyway.

-scott

On 9/15/23, Patrick McGough <patrick.mcgough@...> wrote:
> Good Morning,
>
>
>
> So I have arranged with a local boatyard to pull Petrel on Tuesday morning.
> I explained what I was in need of doing and the marina manager told me that
> they can’t block me real high and said that they might just leave me in the
> lift and let me work on her there.? Caleb, I have one of those endoscopes
> and I am going to go see if I can see what is blocking the tube.? So I
> wanted to ask the group these couple of questions:
>
> *??? If I am going to lift her high enough that the centerboard swings
> completely down, and if I decide to just remove the centerboard, what will I
> need to remove the pin that holds it in place?
> *??? If I am going to keep the centerboard and continue down the course of
> inserting a Dyneema line, then I clearly have to be able to get to the
> connection point and the boat has to be high enough to get to that point, I
> just have to clear the tube of whatever seems to be obstructing the easy and
> try to reduce chafe although if I am just doing all of this to basically
> secure the centerboard to never ever use it then chafe is not going to be a
> concern
>
>
>
> I guess right now I am leaning toward removing the pin, removing the
> centerboard, glassing over the two points that give me access to the pin,
> leaving the trunk open.
>
>
>
> Any and all comments, guidance, and tips are greatly appreciated.? As I told
> the manager, I want to get this fixed so I can get some fall sailing in.
> Right now that centerboard prohibits me from getting back and forth into my
> dock because I don’t have the 6 feet that it needs to clear.
>
>
>
> Have a great weekend.
>
>
>
> Patrick
>
>