Have a look at http://www.ok.yachting.org.au/?Page=52418 - they have produced a great looking boat from a kit, using different techiniques to those outlined in the plans.
The folks there have produced what looks like a very stiff structure, a lot of work has obviously been done to produce the kit, and then put the kit together to form the boat. I certainly look forward to seeing pics of the finished boat.
......any, I will blatter on with my bulkheads and frames!
I had been wondering about overall stiffness of the hull, and how this could be increased with plywood webs, or beams, without increasing the weight substantially. I will leave wondering about this until I need to..............more important now to get the bulkheads set up!
Monday, 7 March 2011
Tuesday, 1 March 2011
The first step........
I have started marking out and cutting the bulkheads- all will be cut from 6mm ply. I am pretty busy at work at the moment, so probably wont get much more than the bulkheads cut in the next two weeks. If I am lucky, I may get some of the frames cut, which are going to be western red cedar. The frames add thickness to the plywood bulkheads, giving a much greater surface area for the side and bottom panels to be epoxied to.
The boat is a pretty simple shape - quite boxy, and has a transom, plus three bulkheads, which add to the structural strength of the hull and act as a building mould to attach the hog, chines and inwales to. The cockpit is relatively small and the boat is only 4 metres long, with bulkheads 800, 1800 and 2800mm from the transom. The cockpit is between the first two bulkheads and is only 1 metre long. This type of construction does give a lot of built in bouyancy, in two large sections - between the transom and bulkhead 1, then between bulkheads 2 and 3 (the space in front of the forward bulkhead is not actually a bouyancy tank, as it is not completely sealed, and contains the mast step).
Deciding on the shape of the bulkheads is one othe most important decisions, as the hull shape is dependant to a large degree on what I decide here.
............measure twice before cutting - I must remember that!
The boat is a pretty simple shape - quite boxy, and has a transom, plus three bulkheads, which add to the structural strength of the hull and act as a building mould to attach the hog, chines and inwales to. The cockpit is relatively small and the boat is only 4 metres long, with bulkheads 800, 1800 and 2800mm from the transom. The cockpit is between the first two bulkheads and is only 1 metre long. This type of construction does give a lot of built in bouyancy, in two large sections - between the transom and bulkhead 1, then between bulkheads 2 and 3 (the space in front of the forward bulkhead is not actually a bouyancy tank, as it is not completely sealed, and contains the mast step).
Deciding on the shape of the bulkheads is one othe most important decisions, as the hull shape is dependant to a large degree on what I decide here.
............measure twice before cutting - I must remember that!
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