I have been lurking on this forum for a good long while, and have a love for wooden boats, paddles and oars. I have made a few ash and cedar raft paddles (guide sticks) and have always wanted to make oars for rowing whitewater. I run an Aire superpuma or a bobcat (teeny cat) on III-V water. Currently I am running 9 foot cataracts with magnum blades in open oarlocks with sleeves and oar rights ( I like to be able to feather the oars while surfing)
After spending way too much time on the forum reading everything I could find on oars. I found some clear ash, cherry, and cedar and went to work. I made two different pairs of oars. Both have ash and cherry for the blades, one pair is 1/2 ash 1/4 cedar 1/2 ash 1/4 cedar/ 1/2 ash that has been shaved down to roughly a hair under 2 inch in diameter , the other pair is the same, but with cherry instead of the cedar. I laminated the layers with west epoxy, and silca microfibers thickened to ketchup consistency, and I am pretty pleased with what I have, but, light they are not. The blades are currently 1/2 inch thick. I am planning on putting a layer of fiberglass on the blades and two coats of west 207 and then spar varnish to protect against uv...
I am wondering how heavy a 9 foot wood whitewater oar should be and if I should shave the shafts down more, and if I can shave down the blades a bit as well before I finish Right now the cedar ones are about 2 pounds (each) heavier than the cataracts, and the cherry ones are about 4.5 each. Cherry is heavy stuff.
Shaving down the shafts with a sharp spokeshave has been therapeutic but I do not want to go to far.
Thoughts
Jeff