Sven Yrvind · video

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Sven Yrvind designs and installs a low-friction, hanging sculling oar system to propel his boat.▶ 0:11 The mechanism uses a downward-facing stick to control blade angle, allowing the operator to sit or stand while sculling.▶ 0:38 By increasing the oar's angle relative to the water, Yrvind aims to direct force forward rather than downward, theoretically improving propulsion efficiency.▶ 1:37 To minimize energy loss, he constructs a rigid, non-flexible support for the oar mount.▶ 2:56 He reinforces the support structure using thickened epoxy and three layers of glass fiber, applying the laminate to both the tension and compression sides of the mount.▶ 3:35 The design includes a planned folding feature to stow the oar when not in use.▶ 1:01 Yrvind prioritizes structural stiffness in the mount to prevent energy dissipation during the sculling stroke.▶ 2:57

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