boat on rock

[cesco19]

so the boat stands on rocks in a far isle, it's not possible rech it by the sea and there are no road to bring material to here... only hand
i'm studing some solution looking for confrontation... does anyone have got any idea ???

[Grant Nelson]

Hydraulic Jacks (carry) , heavy wood planks and levers, large wood rollers (float these in)...

[D'ARTOIS]

What are we talking? A boat in the Med? So what's the difference between the tides?
50 cms?

[cesco19]

we are in the med ,south italy , and the differences between the tides is small .
I think the problem in using hidraulic jaks should be that the sea deep is really small for 100 meters from the coast ....
what do you think on using an hoist from the sea ?

[kjell]

What is the weight of the boat?

[cesco19]

the weight is 7 tons , leinght 10meters , lift 1.50 meters
thanks to everyone and sorry for my bad english

[Vega]

A Russian helicopter. They have specialized in that kind of jobs (lifting heavyweight things from difficult access places), using military equipment at a very reasonable cost.
You can find a Russian crew working in Madeira, lifting the containers of a grounded container ship. If you talk to them, perhaps they can do that in their way home. That way you would only pay the job, not the trip. How much can it cost? If you have everything ready, it will be 1-hour work.

[cesco19]

Originally Posted by Vega

A Russian helicopter. They have specialized in that kind of jobs (lifting heavyweight things from difficult access places), using military equipment at a very reasonable cost.
You can find a Russian crew working in Madeira, lifting the containers of a grounded container ship. If you talk to them, perhaps they can do that in their way home. That way you would only pay the job, not the trip. How much can it cost? If you have everything ready, it will be 1-hour work.

vega, do you know how to contact that crew??
thanks

[D'ARTOIS]

7 tons for a 10 m boat? What material? That sounds like Ferrocement - if so - leave her. If she's steel she can take some pounding and do it by hand and jacks - logs and whatever you have as a helpforce. If you do only a metre a day, somehow you will manage. Make her asd light as possible (if she's not already robbed from everything) - no other choice than the hard way.

Paulo - from Madeira to Sicily at 2500 USD / hour ?

[BillyDoc]

You might want to look for some pneumatic dunnage bags (used to pack railroad cars, etc.). You could slip the bags under the boat and inflate them, which will lift the boat above the rocks, then set a kedge anchor (or whatever is handy) and use a chain hoist or the like to pull the boat back to sea. The boat would probably roll on the dunnage bags if they are the circular type.

Assuming that you can easily inflate your bags to say, 3 pounds per square inch pressure, then you only need 14,000/3 square inches of dunnage bags to float your boat. That works out to 4666 square inches, or three square meters of bags. You might also be able to do this with a bunch of air mattresses if you can't find actual pneumatic dunnage bags. More bags means less pressure required. A bunch of inner-tubes could also work or be helpful to fill up the spaces between rocks.

Good luck!

BillyDoc

[safewalrus]

Med tide; so only small rise and fall how did you get there in the first place - Storm? Check for damage? if there is any how much/ how much do you want to recover this boat? Insured? You'll need to be!

[cesco19]

thanks to everyone for good suggestions
the boat is in fiberglass but the keel is internal made of ferrocement, that's the matter cause it's so heavy and resistant .. i think that bags should be very interesting way for moving the boat but is a tested method ? also, the bags you say are water resistant?? thanks
Fra

[Vega]

Originally Posted by D'ARTOIS

Paulo - from Madeira to Sicily at 2500 USD / hour ?

No.... when they go back to Russia, they would have to fly near or even over Sicily, so they can just stop and do the job.

Casco 19, I can try to find out the company name, or you can fly to Madeira (lovely place to take some days of) and talk to the guys.

[Guillermo]

A weird suggestion:
If the rocks are movable and you can get a lot of manwork, you could try the Pharaoh's method: digging a channel up to your boat.

[cesco19]

Casco 19, I can try to find out the company name, or you can fly to Madeira (lovely place to take some days of) and talk to the guys.[/quote]

the boat stands in an very small isle of sicily this week i'm going there, hoping the waves had'n broke it , would be difficoult reach madeira at the moment.... can you try out the name or a contact to the guys ?
thanks to all
cesco