Jim Michalak has a cesries of articles on his site about rowing, and one of
them has a diagram of a good oar. You are correct that the loom is smallest
right before the beginning (proximal end) of the blade.
<A HREF="http://marina.fortunecity.com/breakwater/274/">Main Page: Jim
Go to the alpha listing and look for "oars" or "rowing". I've made a pair of
these and they are very easy. You must have clamps, a plane, a drawknife, and
either a scrub plane or a large radius gouge. You can do it without the
clamps using HH Payson's technique, but you still require the other tools: