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Effects of tide on boat speed

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Sussex Lad View Drop Down
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Post Options Post Options   Quote Sussex Lad Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 5:19pm
Hat off to you both. I guess we've all got a preference for our own piece of water.

I doubt the gusts on the south coast are quite the same thing but we do get them with an offshore wind. They quite often have their own individual smell. Imagine a seafront with Victorian terraces, there are gaps at road junctions. I believe the London road gust in Hastings smells of Kebabs. The Warrior square gust has the distinct odour of cannabis  Wink
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tink View Drop Down
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Post Options Post Options   Quote tink Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 6:25pm
Ah but have you ever seen symmetrical spinnakers perfectly set on a dead run

on two boat less the 50 foot apart

on reciprocal courses



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Sussex Lad View Drop Down
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Post Options Post Options   Quote Sussex Lad Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 6:30pm
Lol......no thanks,
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ohFFsake View Drop Down
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Post Options Post Options   Quote ohFFsake Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 6:32pm
Originally posted by tink

Ah but have you ever seen symmetrical spinnakers perfectly set on a dead run

on two boat less the 50 foot apart

on reciprocal courses
Haha yes - used to happen a lot at South Windermere.

Not so much since I moved to Ullswater where the wind is "steady"  LOL
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tink View Drop Down
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Post Options Post Options   Quote tink Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 6:36pm
Actually at Ullswater off the point between Sharrow bay and the club
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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 6:47pm
I experienced similar on Bala, two Div 1 Windsurfers, 30 yards apart, sailing exactly the same course upwind on opposite tacks.
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tink View Drop Down
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Post Options Post Options   Quote tink Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 7:14pm
When I win the lottery I am going to fly 100s of drones over the lake with sensors and analyse the wind for a few weeks. 

Or perhaps move to some tropical island..... Obviously somewhere without tides  Wink


Edited by tink - 18 Nov 19 at 7:15pm
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eric_c View Drop Down
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Post Options Post Options   Quote eric_c Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 7:22pm
Originally posted by Sam.Spoons

I experienced similar on Bala, two Div 1 Windsurfers, 30 yards apart, sailing exactly the same course upwind on opposite tacks.


Since they pump their way up wind, when it's calm, it's their choice which tack to be on?

Either that or one was 'leebowing' with some sort of divide by zero (tide) error?
Makes as much sense as anything else on that subject.... Dead
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Rupert View Drop Down
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 7:34pm
In terms of improving accuracy of tidal yardstick, I'd have thought a combination of varying tidal venues will be more accurate than having non tidal venues still in there. For inland venues, removal of tides will also be more accurate, even looking at Rutland and Shearwater, judging by the comments on this thread.
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davidyacht View Drop Down
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Post Options Post Options   Quote davidyacht Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 19 at 9:28pm
Of course tidal gates can allow fast boats to get past points where slow boats can simply not get past!
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