"beryl george" wrote in message
...

The boat weight is around 10 ton with a 50 foot
plus mast and a moderate keel that is level bottom.

All thoughts very much appreciated I have not seen
or done or attempted any thing like this before.


Sounds like extreme folly to me. The mast will bend, the lines will stretch,
the boat will teeter and tip one way or another. Then anything might happen.
And you are going to do this in among a lot of other boats? Think long and
hard about the consequnces of it falling over, then ask yourself how you
could ever have thought it was a good idea.

Tim W

beryl george wrote:

Or has anyone any other suggestions of a better
way to support the boat whilst it is epoxied.

How about using some of those angled jacks that sit on the ground? Set them
up fairly near the pads on the cradle, then lower the cradle pads and paint
the bits they were covering.


--
Wally
www.artbywally.com
www.wally.myby.co.uk/music

beryl george wrote:

Or has anyone any other suggestions of a better
way to support the boat whilst it is epoxied.

How about using some of those angled jacks that sit on the ground? Set them
up fairly near the pads on the cradle, then lower the cradle pads and paint
the bits they were covering.


--
Wally
www.artbywally.com
www.wally.myby.co.uk/music

beryl george wrote:
From other members of the news group thoughts and
experience am I missing something or is this something
that can be carried out providing there is care with
a reasonable degree of ease and safety.

The plan is to block of the foot of the keel and
secure ropes from the top of the mast out to the
sides at about 45 degrees to hold the boat upright
so the support pads on the wintering cradle can be
lowered to allow unhindered access to apply the
4 plus coats of epoxy coating to the under sides.

Or has anyone any other suggestions of a better
way to support the boat whilst it is epoxied.

The boat weight is around 10 ton with a 50 foot
plus mast and a moderate keel that is level bottom.

All thoughts very much appreciated I have not seen
or done or attempted any thing like this before.

How is this any different from the problems of antifouling the same boat?
You simply add supports and wedges adjacent to the existing pads then drop
the main support legs, paint over the pad areas, then wait for the epoxy to
dry and re-attach the main legs, dropping the other two temporary props. We
used to do this every spring on our Hustler 36, (with the mast still up).
The temporary supports need to be fairly sunstantial. Does no-one remember
life before the diesel-powered boat hoist?

Remove "nospam" from return address.

beryl george wrote:
From other members of the news group thoughts and
experience am I missing something or is this something
that can be carried out providing there is care with
a reasonable degree of ease and safety.

The plan is to block of the foot of the keel and
secure ropes from the top of the mast out to the
sides at about 45 degrees to hold the boat upright
so the support pads on the wintering cradle can be
lowered to allow unhindered access to apply the
4 plus coats of epoxy coating to the under sides.

Or has anyone any other suggestions of a better
way to support the boat whilst it is epoxied.

The boat weight is around 10 ton with a 50 foot
plus mast and a moderate keel that is level bottom.

All thoughts very much appreciated I have not seen
or done or attempted any thing like this before.

How is this any different from the problems of antifouling the same boat?
You simply add supports and wedges adjacent to the existing pads then drop
the main support legs, paint over the pad areas, then wait for the epoxy to
dry and re-attach the main legs, dropping the other two temporary props. We
used to do this every spring on our Hustler 36, (with the mast still up).
The temporary supports need to be fairly sunstantial. Does no-one remember
life before the diesel-powered boat hoist?

Remove "nospam" from return address.

Dennis Pogson wrote:

How is this any different from the problems of antifouling the same boat?
You simply add supports and wedges adjacent to the existing pads then drop
the main support legs, paint over the pad areas, then wait for the epoxy
to dry and re-attach the main legs, dropping the other two temporary
props. We used to do this every spring on our Hustler 36, (with the mast
still up). The temporary supports need to be fairly sunstantial.

I suspect what he wants to do is spray on umpteen coats, each time
doing the whole underwater hull in one go, and the drying coats would
get damaged by being scrunched by any supports.

Does no-one remember life before the diesel-powered boat hoist?

To be sure. AFAIK life at Port Edgar is still like that. They have
one fixed electric crane at the end of the pier, and they drag boats,
on their cradles, around the site on trolleys pulled by a lawnmower
tractor. The trolley axles have built-in hydraulic lifts, and one
of the axles is removable. The cradles are lowered onto stacks of
diced railway sleepers, and the trolley is then lowered and pulled
away from underneath.

Two advantages are that they can park the boats a lot closer together
than with a travel hoist, and that boats can be manoeuvred into
sheds with limited headroom (especially headroom at the doors).

Disadvantages are that it takes longer, and that use of cradles is
mandatory. They can't deal with boats to be propped up on sticks.

Dennis Pogson wrote:

How is this any different from the problems of antifouling the same boat?
You simply add supports and wedges adjacent to the existing pads then drop
the main support legs, paint over the pad areas, then wait for the epoxy
to dry and re-attach the main legs, dropping the other two temporary
props. We used to do this every spring on our Hustler 36, (with the mast
still up). The temporary supports need to be fairly sunstantial.

I suspect what he wants to do is spray on umpteen coats, each time
doing the whole underwater hull in one go, and the drying coats would
get damaged by being scrunched by any supports.

Does no-one remember life before the diesel-powered boat hoist?

To be sure. AFAIK life at Port Edgar is still like that. They have
one fixed electric crane at the end of the pier, and they drag boats,
on their cradles, around the site on trolleys pulled by a lawnmower
tractor. The trolley axles have built-in hydraulic lifts, and one
of the axles is removable. The cradles are lowered onto stacks of
diced railway sleepers, and the trolley is then lowered and pulled
away from underneath.

Two advantages are that they can park the boats a lot closer together
than with a travel hoist, and that boats can be manoeuvred into
sheds with limited headroom (especially headroom at the doors).

Disadvantages are that it takes longer, and that use of cradles is
mandatory. They can't deal with boats to be propped up on sticks.

in message , beryl george
') wrote:

From other members of the news group thoughts and
experience am I missing something or is this something
that can be carried out providing there is care with
a reasonable degree of ease and safety.

The plan is to block of the foot of the keel and
secure ropes from the top of the mast out to the
sides at about 45 degrees to hold the boat upright
so the support pads on the wintering cradle can be
lowered to allow unhindered access to apply the
4 plus coats of epoxy coating to the under sides.

I have to say I wouldn't. The chances are, of course, that you would get
away with it, but if you didn't the consequences would be disasterous - not
only would you lose the boat but you'd have a fair chance of killing the
painting crew. Could you attach legs to the chain plates at deck level if
you need to get the props out from underneath? That should be strong enough
and used to be a common enough technique.

But please, get advice from someone experienced locally who can look at the
problem. Theorising on Usenet about a boat and yard we haven't seen is
probably less than useful.

--
(Simon Brooke) http://www.jasmine.org.uk/~simon/

I'm fed up with Life 1.0. I never liked it much and now it's getting
me down. I think I'll upgrade to MSLife 97 -- you know, the one that
comes in a flash new box and within weeks you're crawling with bugs.

in message , beryl george
') wrote:

From other members of the news group thoughts and
experience am I missing something or is this something
that can be carried out providing there is care with
a reasonable degree of ease and safety.

The plan is to block of the foot of the keel and
secure ropes from the top of the mast out to the
sides at about 45 degrees to hold the boat upright
so the support pads on the wintering cradle can be
lowered to allow unhindered access to apply the
4 plus coats of epoxy coating to the under sides.

I have to say I wouldn't. The chances are, of course, that you would get
away with it, but if you didn't the consequences would be disasterous - not
only would you lose the boat but you'd have a fair chance of killing the
painting crew. Could you attach legs to the chain plates at deck level if
you need to get the props out from underneath? That should be strong enough
and used to be a common enough technique.

But please, get advice from someone experienced locally who can look at the
problem. Theorising on Usenet about a boat and yard we haven't seen is
probably less than useful.

--
(Simon Brooke) http://www.jasmine.org.uk/~simon/

I'm fed up with Life 1.0. I never liked it much and now it's getting
me down. I think I'll upgrade to MSLife 97 -- you know, the one that
comes in a flash new box and within weeks you're crawling with bugs.

"Steve" wrote in message ...
I've done this when I beach my boat for bottom scrubbing or when I'm on a
"Grid". (If I'm on a Grid, there is usually a set of pilings to lean
against on one side but it is still a good idea to run a halyard off that
side to make sure she has a list in the direction of the piling as the tide
goes out.)

You should be ok on the hard, however it might depend on how your boat is
built. If it is an older wooden boat, you may need the support of stands to
help keep her shape. The frame and keel structure relies on support
distributed over the entire under water surface, not just the keel. The keel
should support only about 50% while the side supports the remainder.. (this
is a general rule of thumb for steel ships in dry dock.)

If your boat is fiberglass and has a fin or attached keel, you also should
be using a cradle of boat stands. Even then you need support of the stem and
stern.

There should be no problem using the mast and rigging to keep the boat
upright, as long as she is landed and maintained in a vertical conditions. I
wouldn't recommend moving a lot of fuel or weight around if your just
holding her with halyards.

Wouldn´t it be simpler to get additional supports and put them
alongside the original ones and take these off, painting the area
underneath and replace them when the epoxy paint has polymerized. A
bit of waxed paper on the top panel would prevent adhesion.
john