March 14th 2004

  How the hole for the propellor shaft was made

Remarks:
The method I used did work, but was not smart. Because the bore I used, I could bore only 3 cm at once, and than I had to remove the piece that was left in the centre.

A better method would be:
Weld a bore of about 10mm on a long solid rod, about 1,5 meter long.
Bore a hole in the centre of the position were the prop.shaft should be later on.
Now weld two wings, sharp enough to bore through the wood, about 10 cm from the end of the solid rod.
Using the first hole for the alignment, the big bore can now be pushed through.

April 2004

After turning the hull up side down again, I could see how well I made the hole for the propellor shaft.
It tuned out it was to steep. The clearence between the hull and the shaft was almost 31 cm. It should have been 25 cm.

I put some sandpaper around the shaft and started moving it in and out for some hours, in order to enlarge the hole. Below you can see the result halfway.

The centre of the shaft here is at about 28 cm.
I will  try to move her down to 26,5 cm.  This in future would give room for a 18" Propellor.

June 2004

  After shaping a bit more hydrodynamic.

At the end I could not fit in the propeller shaft. This is how I made a perfectly suitable bore of it in only 5 minutes of time.
After turning and pushing it into its position it easily took away the bits and pieses that had become in its way during the mounting of the keel. (drips of epoxy etc.)