Posted by Patrick Mouligne (pmouligne@…>)
— In freedomyachts2003@yahoogroups.com, “Roger L.” <rogerlov@…>
wrote:
What’s PU resin?
Scotty
You can use commonly available PU resin of
durometer 90. It’s much cjeaper also that spartite. You can
get it
in specialized hobby mold shops or suppliers for casting
concrete
statues and that sort of thing.
Hello,
I had the same mast rotating problem with my Freedom 44, 15
years ago. The main mast rotated about 15 deg when I was sailing
downwind in heavy air wing to wing on the way back from Bermuda.
I was lucky enough to make it home, under very shortened sail
on the main, without the mast totally coming out of the step (very
tight boom vang and jib/main halyards…)
After talking to TPI at that time (Paul Miller and Brian
Barer) I followed their recommendation for best solution for any
fixes of that problem on all freedoms. Even if you have bolted the
mast to the mast step the amount of carbon fiber will not be enough
to prevent the bolt from eventually “wearing out” the fibers and
getting loose…
1- On the inside of the mast, laminate 2 3/4" thick by 2"
high by 4"long aluminum plates, following the curve of the mast,
diametrically opposed to each other. Use some filled (high strength)
epoxy for bedding and filleting the aluminum plates. Then use
biaxial, 4" wide, glass strips all around the inside of the mast to
glass in these 2 aluminum plates. I would recommend at least 3 layers
of 17oz type of materials.
2- Drill and tap each plate to receive 1/2" SS bolts that will
match the holes drilled in the outside aluminum bottom plates holding
the base of the mast.
3- Put the mast back in place and tighten the bolts in place
using lock washers. Make sure that collar is tight all around.
Depending on the situation at the bottom of each mast it might
be easier to take that collar off to match the holes properly and
then put the collar back in. (make sure to mark everything properly
before removing so it all matches…) Depending on proper access with
the mast in place
it might be easier to use one 1/2" stainless steel threaded rod to go
through with a couple of lock nuts at each end.
Neither one of my masts ever turned again after that fix. It
might sound a bit complicated but it really is not if you have a good
fiberglass man…
Patrick Mouligne F44 #85 “Frog-Kiss”
PS: Friendly reminder, Frog-Kiss is still on the market. She is
beautiful and has many proven offshore single/short handed miles,
including 2 overall fleet victories in Bermuda 1-2. She is better
than new and probably would cost over $3/4 million to duplicate
today.
She is presently in Virgin Gorda, BVI, and I shall bring her
back to Newport in the spring.