I'm no expert but
Posted by: bartc on Dec-19-12 8:46 AM (EST)
I use an Aleut, so flutter isn't an issue. On researching designs, this is what I've come up with that may help you in your question:
1) Loom length relates to your shoulder width and grip, not to power (although leverage always matters, based on where your hands are on the paddle).
2) Paddle length relates to your boat width and your arm length.
3) Blade size relates to how much power you get from different strokes, as well as resistance to wind. So narrower resists wind less than wider. But in terms of power it appears to be the overall amount of area that actually meets the water in a full stroke; multiplying width times length gives you the area and various combos can be actually equivalent in area.
So it seems to me that you've settled on the loom length you like (an unshouldered GP might have given you the same thing). Your overall paddle length needs to be based on width of your boat, rather than power needs, meaning that you might or might not be comfortable with a shorter paddle. Once you settle on those two factors, then your blade width is the only variable left to play with; more width more power transfer.
If you can DIY your own and cut it down sequentially, you can test this easily. If you don't want to do that, then find a table of effective blade area with descriptions of how those produce more or less power and wind resistance for a wing EP and figure something similar for a GP.
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