F/21 Sprung Gooseneck Fitting on Carbon Fiber Mast

Posted by mikemc_57 (mikemcnally@…>)

Please help with any advise.

I have a 1984 Freedon 21 shoal keel. The Mast has regularly rotated
as far a 30 degrees either way anytime sailing in 15+ knot winds.

When I went to rotate the mast back today I see that the Starboard
side of the Fitting to the Mast has sprung and the 4 rivets are
exposed. <>

What is the right way to fix such a problem?

Meantime: As I am just daysailing, I am thinking of using stainless
hose clamps to pull the fitting back flush to the mast, and hold the
rig together.

I wonder if this will damage the carbon fiber?
Would rubber gasket beneath the stainless band help?

Thanks for any experience you can relate to me.

MikeMc_57

Posted by clivaday (clivaday@…>)

The mast should not rotate. If a tabernacle rig, there should be a
hole right above the cabin top, where you insert a quick release pin
to stop the rotation. The pin goes through the removable mast and
the permanent base tube above the deck. If a keel mounted mast, there
is a stainless strap that attaches to the bottom of the mast, and to
the permanent interior base tube, to prevent rotation. You can
replace the rivets with new rivets, or stainless flat headed self
threading screws/bolts. You can consult Mark at the Freedom home site
about what to use. The hose clamp could be added after the rivets are
properly installed, as an extra safety precaution. Also tie a knot in
your mainsheet at a point at the cam cleat, to prevent the boom from
swinging out too far. Good luck. Charlie


— In freedomyachts2003@yahoogroups.com, “mikemc_57”
<mikemcnally@g…> wrote:

Please help with any advise.

I have a 1984 Freedon 21 shoal keel. The Mast has regularly
rotated
as far a 30 degrees either way anytime sailing in 15+ knot winds.

When I went to rotate the mast back today I see that the Starboard
side of the Fitting to the Mast has sprung and the 4 rivets are
exposed. <>

What is the right way to fix such a problem?

Meantime: As I am just daysailing, I am thinking of using stainless
hose clamps to pull the fitting back flush to the mast, and hold
the
rig together.

I wonder if this will damage the carbon fiber?
Would rubber gasket beneath the stainless band help?

Thanks for any experience you can relate to me.

MikeMc_57

Posted by John Lund (frihet02@…>)
Don’t know what your question was about mast rotation but I had an issue with mast movement on a downwind run off the Washington Oregon California coast, in up to 45 kts of wind, on a broad stbd reach. A crew, noticed slight movements when the boat dropped into some troughs - 16 to 18 foot waves. I noticed that the anti-rotation strap had deflected, and was allowing some (1 to 2d) rotation ccw. I had a copy of the manual for an F35 (my boat is an F32) and noticed that the F35 mast has a pin through the base of the mast and through the mast step spigot to prevent rotation. After arival in a port with a yard and some reflection, I opted for the same solution, unstepped the mast and found that the mast step is easily removed (2 bolts). The mast step was bored at a machine shop, the mast match bored in the yard. I used a 3/8" bolt in a 1/2" hole with a shroud protector segment as a buffer between the mast, mast step and the bolt. The
mast is now secure and I would be comfortable with this solution in any ocean.clivaday <clivaday@…> wrote:
The mast should not rotate. If a tabernacle rig, there should be a hole right above the cabin top, where you insert a quick release pin to stop the rotation. The pin goes through the removable mast and the permanent base tube above the deck. If a keel mounted mast, there is a stainless strap that attaches to the bottom of the mast, and to the permanent interior base tube, to prevent rotation. You can replace the rivets with new rivets, or stainless flat headed self threading screws/bolts. You can consult Mark at the Freedom home site about what to use. The hose clamp could be added after the rivets are properly installed, as an extra safety precaution. Also tie a knot in your mainsheet at a point at the cam cleat, to prevent the boom from swinging out too far. Good luck. Charlie— In freedomyachts2003@yahoogroups.com,
“mikemc_57” <mikemcnally@g…> wrote:> Please help with any advise.> > I have a 1984 Freedon 21 shoal keel. The Mast has regularly rotated > as far a 30 degrees either way anytime sailing in 15+ knot winds.> > When I went to rotate the mast back today I see that the Starboard > side of the Fitting to the Mast has sprung and the 4 rivets are > exposed. <>> > What is the right way to fix such a problem?> > Meantime: As I am just daysailing, I am thinking of using stainless > hose clamps to pull the fitting back flush to the mast, and hold the > rig together. > > I wonder if this will damage the carbon fiber? > Would rubber gasket beneath the stainless band help?> > Thanks for any experience you can relate to me.> > >>MikeMc_57



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