Wednesday 22 April 2015

Construction Redux

Construction Redux

When we finished last we had drawn the construction profile to the gunwale and added an outline of the keel. This time we'll look at the construction plan view.

I transferred all the construction details from our previous drawing to this one.



You will notice that I've only drawn in half, why draw two things that are exactly the same? Anyway the other side is for the deck plan once we decide what sort and size of house we want.

Next we need to deal with the transom and we should draw that in detail and then transfer it to the construction plan, Once it's drawn in detail you can later add specifications. To draw you take the height of the transom off the lines plan in profile and the width at the top and bottom from the sections.



I've added a sculling notch, framing around the edges and a centreline backing block for the rudder attachment. When drawing the transom , or any other detail view for that matter you should show two views as a minimum.



The bevels cannot be taken off the lines plan as the transom is sloped 27 degrees and the sides slope outwards making a compound bevel so draw the transom as if it was square and let the builder do the bevel in situ. However having said that you can draw in the bottom to transom bevel as that is not compound and the bevel can be taken directly from the lines in profile.

Once all that is done then the transom can be added to the construction plan in plan and profile.



Now comes the question of floorboards. Are you going to have any at all? If not then it makes no sense to have a keelson as that becomes a tripping hazard, not good in a small boat. I lean toward full length floor boards which are removable for cleaning then a keelson makes sense.



Next time we'll drawn up the out board profile and then the deck plan and return to the construction plan to add those features

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