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Thrust vectoring
Subject: Thrust vectoring
From: Jere Lull I don't doubt that this is true for your boat (since you've observed it) but, I'd bet it's not universal and would depend on the boat, set-up, and conditions. Why it occurs, would take someone familiar with boat props, and I would wonder if it had anything to do with the fact that the prop might be working more efficiently when starting at slower RPM's than at higher, especially if the boat is DIW. Another observation along the same lines .... I'm more apt to see the effects of prop walk when going ahead, if boat speed is low. Shen Something that I've noticed, though I'm not sure if it's universal or even really true: When I punch it, the prop walk seems to be minor. When I want maximum prop walk, idle speed is the way to go. It could be just that the duration is so much shorter, or that the higher thrust straightens things out. |
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