Originally Posted by steven
i just got a stern frame for my Maravia williwaws, which has a good amount of kick (rocker). i will be guiding paddlers down small, technical streams. can anyone recommend a good oar shaft length? would 7.5' be too short? I will probably use smaller (6.5") blades.
Mount the frame on your raft, with oarlocks. Mock up a waterline, about 1/4 - 1/3 of the way up from the bottom of the tubes. Use an oar (or any straight thingie) and see how the waterline and the location of the grips line up. Basically, the inboard end of the blade should be at the waterline with the grips at a comfortable height, with at least 4 " space between. Mess around. When it feels right, mark it.
You can also do this with a pencil, a piece of graph paper, and a ruler/scale.