Re: Mast tabernacle photo anyone?

I do like the folding type, but the slot would work just as well, providing a proper boot could be fitted. A little creative canvas work would solve the issue.



David Jost

--- Inbolger@yahoogroups.com, "Andrew" <a.c.l.yen@...> wrote:
>
>
> David,
> This is my understanding of the various Chebacco mast step designs drawn
> by PBF:
>
> * Original #540 had a slot in cabin top through which mast was
> stepped then raised to vertical. Slot sealing arrangement required.
> * Glass house version (BWAOM p227) had two parallel posts between
> which the mast was erected. two cleats, one higher on front and one
> lower on the rear face assist raising the mast and act as the mast
> partner once erected.
> * Chebacco 25 has a similar arrangement minus the rear cleat - the
> function of the rear cleat being filled by the bulkhead behind the posts
> (BWAOM p231)
> * Cruising Chebacco conversion (October '97) will probably interest
> you most. It had a true tabernacle to allow the mast to fold over the
> roof of the "doghouse". The posts are arranged in a "C" section, with 2
> 1/4" x 4" fir posts and a 1 1/2" thick board of plywood on the rear face
> to hold them apart. The forward face is open and the mast swings into
> this space. The pivot pin is 1" stainless steel. The boom gooseneck is
> mounted to the plywood on the posts rather than the mast, this allows
> the sail to be lowered and the mast to be lowered on top of the furled
> sail. The toe of the mast (or heel or foot ... [:-?] ) is held in place
> with an arrangement of turnbuckles on either side. I'll try to scan
> something and put it in the "Rigs, rigging and sails" files folder for
> you.
> * Raised Deck Chebacco had a slot top cabin and the mast was raised
> by inserting the foot into the step near the keel and walking the mast
> up, walking through the cabin slot. Once erect the mast was held up
> with an ingenious arrangement of levers and turnbuckle that was designed
> to be easy to use, secure yet would not jam.
> Regards,
> Andrew--- Inbolger@yahoogroups.com, BruceHallman <hallman@> wrote:
> >
> > On Sun, Mar 13, 2011 at 4:27 PM, dnjost davidjost@ wrote:
> > >
> > >
> > >
> > > I am begin to ruminate on the next project and am strangely drawn to
> the Chebacco. Does anyone have a decent photo and description of the
> tabernacle on a chebacco 20. I read all of the Chebacco Newsletters and
> saw a couple of examples but the photos left a lot of information out.
> > >
> > > David Jost
> > >
> >
> >
> > I just looked at all three MAIB articles on Chebacco and none has a
> > tabernacle that I can see. It would be possible to fit a "standard"
> > tabernacle for the mainmast, I am guessing these are owner mods you
> > are seeing in the photos. Also, I have a hunch that striking and
> > raising the mast is not all that hard to do without a tabernacle.
> > But, if you had a regular bridge you needed to fit underneath, it
> > might be a welcome feature.
> >
>

--- In bolger@yahoogroups.com, BruceHallman <hallman@...> wrote:

>
> On Sun, Mar 13, 2011 at 4:27 PM, dnjost davidjost@... wrote:
> >
> >
> >
> > I am begin to ruminate on the next project and am strangely drawn to the Chebacco. Does anyone have a decent photo and description of the tabernacle on a chebacco 20. I read all of the Chebacco Newsletters and saw a couple of examples but the photos left a lot of information out.
> >
> > David Jost
> >
>
>
> I just looked at all three MAIB articles on Chebacco and none has a
> tabernacle that I can see. It would be possible to fit a "standard"
> tabernacle for the mainmast, I am guessing these are owner mods you
> are seeing in the photos. Also, I have a hunch that striking and
> raising the mast is not all that hard to do without a tabernacle.
> But, if you had a regular bridge you needed to fit underneath, it
> might be a welcome feature.
>

Just checked "Boats With An Open Mind".  It shows an arrangement I would call a chock.  The mast has a pin to stop against a pivot point at the forward end of the deck.  The mast sweeps through the open well aft of the stem and nests between the cheeks of the pivot chock.  Sort of like a tabernacle without a fixed pivot.  Check pages 225 and 228.

I also have a recollection that some were built with a slot in the deck for mounting in the manner of Birdwatcher.

V/R
Chris

On 03/14/2011 10:33 AM, BruceHallman wrote:

On Sun, Mar 13, 2011 at 4:27 PM, dnjost<davidjost@...>wrote:

I am begin to ruminate on the next project and am strangely drawn to the Chebacco. Does anyone have a decent photo and description of the tabernacle on a chebacco 20. I read all of the Chebacco Newsletters and saw a couple of examples but the photos left a lot of information out.

David Jost

I just looked at all three MAIB articles on Chebacco and none has a
tabernacle that I can see.  It would be possible to fit a "standard"
tabernacle for the mainmast, I am guessing these are owner mods you
are seeing in the photos.  Also, I have a hunch that striking and
raising the mast is not all that hard to do without a tabernacle.
But, if you had a regular bridge you needed to fit underneath, it
might be a welcome feature.

On Sun, Mar 13, 2011 at 4:27 PM, dnjost <davidjost@...> wrote:

>
>
>
> I am begin to ruminate on the next project and am strangely drawn to the Chebacco. Does anyone have a decent photo and description of the tabernacle on a chebacco 20. I read all of the Chebacco Newsletters and saw a couple of examples but the photos left a lot of information out.
>
> David Jost
>

I just looked at all three MAIB articles on Chebacco and none has a
tabernacle that I can see. It would be possible to fit a "standard"
tabernacle for the mainmast, I am guessing these are owner mods you
are seeing in the photos. Also, I have a hunch that striking and
raising the mast is not all that hard to do without a tabernacle.
But, if you had a regular bridge you needed to fit underneath, it
might be a welcome feature.

I am begin to ruminate on the next project and am strangely drawn to the Chebacco. Does anyone have a decent photo and description of the tabernacle on a chebacco 20. I read all of the Chebacco Newsletters and saw a couple of examples but the photos left a lot of information out.

David Jost