ST60 Wind Maximin Reading Limits - Query

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BlowingOldBoots
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ST60 Wind Maximin Reading Limits - Query

Post by BlowingOldBoots »

I went up to Craobh Marina on Sunday afternoon to check the boat and make sure she was secure for the upcoming storm. Spent the night onboard; what a blow of wind. Fortunately the wind was more of less ahead, so not a lot of rocking and rolling, but the sound was incredible. No noticeable damage around the marine.

A curious feature of the ST60 wind instrument, it maxed out at 60kts, but rather than stay at 60, it decreased down to about 10kts then started building up again and working as expected, except when it got to 60kts, repeat. Does anyone know if this is a hard limit built into the unit, and it goes into safe mode or something like that at high rpm?

Back home again, so the boat is on its own tonight.

ImageUntitled by Rival Sailor, on Flickr
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cpedw
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Re: ST60 Wind Maximin Reading Limits - Query

Post by cpedw »

For me, that's an idle inquiry. If it's approaching 60 kts, I'm not looking at the windspeed , I'm checking my ticket home!
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BlowingOldBoots
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Re: ST60 Wind Maximin Reading Limits - Query

Post by BlowingOldBoots »

Other wind speed indictors, NASA for example, displayed gusts at 70kts. I am wondering why the ST60 did not display above 60kts.

There was no need to go home, the boat was quite safe. In north westerlies, at less wind speed, at Craobh Marina, the wind is beam on and the boats can all heal alarmingly, popping out fenders if moored on long springy lines, especially modern high sided hulls that sit on, rather than in the water.
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claymore
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Re: ST60 Wind Maximin Reading Limits - Query

Post by claymore »

In 1981 I kept our Corribee on a mooring on the River Wyre at Knott End.
One Saturday afternoon a F9 was forecast and I thought in my relatively youthful way that I'd best be on the boat as this came through.
I walked out to the boat (bilge keeler and engineless) and climbed aboard.
I brewed up, had the craic with one or two similiarly-minded fellow idiots and sat and waited - all the while the forecast tempest brewing.
by 11pm we were afloat (I used to get around 3 hours on the tide) and getting nicely bounced around.
By 11:30 most of my stomach contents were gone and it was around this time that 2 or 3 boats nearby parted from their moorings. One came close but didn't hit - I think it was a Centaur - too big to fend off anyway and it was about this time that I realised the futility of my actions.
If my mooring had failed - I had no engine so feck alone knows what might have happened. If something had borne down on me - I'm probably not capable of doing much to fend it off. etc

Never done it since
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BlowingOldBoots
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Re: ST60 Wind Maximin Reading Limits - Query

Post by BlowingOldBoots »

I sat on a mooring, Westerly GK29 just off Beaumaris, in around a F9, about 1986. When the tide turned the boat swung its stern into the wind. That night, just offshore, over 100mph gusts were recorded based on press releases. We had one of those handhold, cone shaped wind speed indicators with the red disc in it.

Anyway, does anyone know if ST60 has an upper wind limit?
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stevepick
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Re: ST60 Wind Maximin Reading Limits - Query

Post by stevepick »

Don't know if it has a top limit, the manual is probably on the web somewhere, but its too late to look it up. Did you have the GPS and log on? Not sure how mine would behave without those inputs working.
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BlowingOldBoots
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Re: ST60 Wind Maximin Reading Limits - Query

Post by BlowingOldBoots »

stevepick wrote: Mon Feb 12, 2024 1:14 am Don't know if it has a top limit, the manual is probably on the web somewhere, but its too late to look it up. Did you have the GPS and log on? Not sure how mine would behave without those inputs working.
I have the manual, it doesn't state an upper limit, or unlimited in what I have read. The ST60 works independent of GPS and log, but the plotter uses this to calculate true wind when moving. I was moored and sheltered at the time, thankfully.
What's that? Dunno! Should we be worried about that? Dunno! How? Ah dunno!
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