I was questioned about my welds today and would like to let you all know that a Teck screw will hold on a 3mm screw a quarter of a ton in sheer. I would think the wood would give away first but it doesn't. Then my crane on my trailer will hold a ton on a meter radius with four 1/2" bolts in tension. The load is only on two of those bolts at a time. So how much will my welds hold?
6" long weld with a depth of .25" well 6x.25"=1.5 sq inches
Steel carry's a load of 25 tons per square inch so my welds should carry 37.5 tons
Monday, May 23, 2011
Concrete footings
It amazes me when they poor great masses of concrete into holes in the ground for house footings.
Generally houses are in the range of forty tons and twenty tons is in the footings. Now if I were building a boat I would put all that weight at the bottom to keep the boat upright and this is a good thing. If I were to build a boat of forty tons I would get a stronger structure than a house, and the thing would carry a load of forty tons making it eighty tons.
The buoyancy of land to carry loads is greater than that of water. Let me explain, drive a heavily loaded truck on a road and its OK now drive it onto soft wet ground and it will get bogged, drive it into water and it will go straight to the bottom. So all three surfaces have a buoyancy, the road, the soft wet ground and the water. Now it is no good putting all that concrete into the ground if it is going to sink.
Lighter load for softer ground. Next to spread the load a boat has a surface area now put the boat onto the ground and it will support a massive amount of load with out sinking into the ground. Thats why big trucks have lots of tires to support the load so as not to sink into the road. If a building is going to move bigger and more concrete is not best. If I were going to build on soft ground I would go for surface area and allow the whole building to move as a whole.
I did work years ago as a drilling contractor and on one job in Corrimal in NSW. there was a skin of hard ground about three feet thick and below that the drilling rig would have sunk over eighteen feet threw the underlying mud.
How did I know well when we broke threw the skin I was able to push the drill bit that was three feet in diameter to the full extent of the machine with out turning the bit. The capacity of the machine was close to twenty feet for the depth of hole. So putting big concrete footing into the ground would have resulted in the building sinking over twenty feet threw the mud.
Any ground can be built on it just takes imagination as to how to over come a sites special needs.
Generally houses are in the range of forty tons and twenty tons is in the footings. Now if I were building a boat I would put all that weight at the bottom to keep the boat upright and this is a good thing. If I were to build a boat of forty tons I would get a stronger structure than a house, and the thing would carry a load of forty tons making it eighty tons.
The buoyancy of land to carry loads is greater than that of water. Let me explain, drive a heavily loaded truck on a road and its OK now drive it onto soft wet ground and it will get bogged, drive it into water and it will go straight to the bottom. So all three surfaces have a buoyancy, the road, the soft wet ground and the water. Now it is no good putting all that concrete into the ground if it is going to sink.
Lighter load for softer ground. Next to spread the load a boat has a surface area now put the boat onto the ground and it will support a massive amount of load with out sinking into the ground. Thats why big trucks have lots of tires to support the load so as not to sink into the road. If a building is going to move bigger and more concrete is not best. If I were going to build on soft ground I would go for surface area and allow the whole building to move as a whole.
I did work years ago as a drilling contractor and on one job in Corrimal in NSW. there was a skin of hard ground about three feet thick and below that the drilling rig would have sunk over eighteen feet threw the underlying mud.
How did I know well when we broke threw the skin I was able to push the drill bit that was three feet in diameter to the full extent of the machine with out turning the bit. The capacity of the machine was close to twenty feet for the depth of hole. So putting big concrete footing into the ground would have resulted in the building sinking over twenty feet threw the mud.
Any ground can be built on it just takes imagination as to how to over come a sites special needs.
Sunday, May 22, 2011
Parasites
Parasites
I know for a fact as it is happening here, that the religions and charities get a donation and then they put you on there mailing list and you have the devils job of getting off there list. So here is a way to make shore that they do take you from the list. When you get the next persistent mail from your favorite charity or sponger with a return address envelope. You are set for the next stage, now you find something that is heavy and useless then cover it with laundry powder and you post this heavy object to the recipriant wrapt in brown paper without paying the postage. Now my mate carries this out to the extreme return posting a slab of broken bricks to Canada air mail. It was funny to see him at the post office with the clerk helping him lift it out of his van onto the post office trolley. This was done to a particularly aggressive organization and it worked.
Saturday, May 7, 2011
Friday, May 6, 2011
internet phones
I have a internet phone and it is not listed. Some how this person rings me and does not show there phone number and wants me to go into my computer and open up the workings on line. So I listens to the instructions given by the caller and proceed to shut down my computer and in the mean time say yes to all her instructions. They tell me to do this and that and I say yes did that and they rattle on. Then I say bugger what has happened and I sit there tapping the keys and she waits till I finish.I say "We will have to start again" and we go threw it again then they hang up. Or it might go something like this Are you the owner of this phone and I say no do you have a computer and I say no and after about six nos they hang up. Or they ask if I would like something and I say yes and they go on and on and it finally asks for my credit card details and I say I don't have one. Quick as a whip they ask If I could send them a money order and I say that's OK and they give me the details on where to send the money. I figure next time they want to go this way I will send them a brick covered in white laundry powder collect!!!
Saturday, April 16, 2011
drug sub
I have made new bearings for the winch and rebuilt it. The cable was refitted and wound up and it works like new. will heve to wait for the weather to improve I do not want to fight bad weather in a untried boat. This gives me more time to do those small jobs that require time. i will make a list and then get that work all done. i read about someone talking about messing about in boats and they said it was the journey and i find this to be true.
Monday, March 21, 2011
drug sub
I have been busy on another project and the drug sub wants to get in the water
This is one of the cabin hold down bolts and it has a small leak.
Looking for more leaks with the camera.
more of the same
this is looking down the left bunk
Seats are dry
Rain comes down but surprisingly warm inside the boat
Water drips from the roof
Window leak
These two photos of the space between the inner hull and the outer hull
This is one of the cabin hold down bolts and it has a small leak.
Looking for more leaks with the camera.
more of the same
this is looking down the left bunk
Seats are dry
Rain comes down but surprisingly warm inside the boat
Water drips from the roof
Window leak
These two photos of the space between the inner hull and the outer hull
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