How does the automatic feathering work?
The oars are free to rotate 1/4 turn. The springs that pull the oars forward are connected off-center to the top of the oars. As they pull the oars forward, they rotate the oars 1/4 turn into the feathered (flat) position. Likewise, the handles are connected off-center to the top of the oars. As you pull the handles rearward, they rotate the oars 1/4 turn into the squared (vertical) position.