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PeconicPuffin



Joined: 07 Jun 2004
Posts: 1830

PostPosted: Thu Mar 02, 2017 9:08 am    Post subject: Reply with quote

I like these numbers a lot. My only caveat would be to call under 8 knots a marginal jibe even if it is brief, though, and save "planed through" for 8+.

boardsurfr wrote:

10 knot is a "steady state" planing speed - if the wind is just right (or rather wrong), I can stay on a very slow plane at 10 knots for a while on a 100-110 l slalom or freestyle board. That's based on "real time" announcements from GPSLogit on an Android phone.
For jibes, I use 8 knots as a threshold for a cleanly planed-through jibe, and 6 knots for a marginal jibe. If the speed drops to 6 knots briefly during a jibe, the board never has time to sink back into the water; most observers would call it a planed-through jibes. A jibe with a 10 knot minimum speed feels darn good.
The other useful indicator of jibe quality is how much of your entry speed you loose. Keeping 50% of the speed is good, 60% is very good. Even outstanding jibers don't usually go much above that, unless they have some help from well-timed waves or similar. GPSAction Replay makes this kind of analysis easy.

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Michael
http://www.peconicpuffin.com
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isobars



Joined: 12 Dec 1999
Posts: 20935

PostPosted: Sat Mar 04, 2017 10:15 pm    Post subject: Re: Fantastic discussion! Let me clarify a few points... Reply with quote

manuel wrote:

- g-forces (how hard/quick it turns)

Do you have ANY idea how dependent that is on rider input? Hundreds of percent, at LEAST.
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