how long would it take? - SailNet Community
 
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post #1 of 10 Old 06-08-2011 Thread Starter
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how long would it take?

my dad keeps telling me that going far in my sailboat would take forever. i only want to go a few miles down the bay. he said it would take 5-6 hours on a light breeze he talking about 8-10mph. i didn't think it would take that long. i know some friends that live down the bay that i would wanna pick up and go sailing is it to far? would i really go that slow that it would take that long? i would be sailing with just a main sail and jib. won't be using the spiniakker till later in the year.

16' mistral sailboat, And 27' coronado
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post #2 of 10 Old 06-08-2011
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How fast do you generally go?

I keep a log of all my sails so I know what my average cruising speed is. I can make little adjustments if I know the wind will be strong or the current in my favor, etc., but generally speaking I like to use a conservative estimate of 3.5 knots for figuring my expected travel time.

If I know I'll be going upwind, I add an extra 50% to me expected time.

For more complicated routes, I use Google Maps to plot a reasonable course and just take that as the distance.

If you know the tidal currents in your area, you can plan your trip to take advantage of them.

Don't forget to add in prep time. Working alone it takes me at least half an hour to get the boat ready to sail. Can be up to an hour as there are always nagging little jobs to do.

s/v Laelia - 1978 Pearson 365 ketch
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post #3 of 10 Old 06-08-2011
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D=RT

Just about everyone has a handheld GPS to record speed these days. I imagine that your 16' sailboat goes at least 3 knots, which would take 1 hour if you are going just a few miles down the bay. If you need to tack twice it will take about 2.12 hours.

Craig
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post #4 of 10 Old 06-08-2011 Thread Starter
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ok so thats resonble. ya i don't have a handheld gps thinking about buying on though.

16' mistral sailboat, And 27' coronado
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post #5 of 10 Old 06-08-2011
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ithinkujusthave2dosomesimplearithmaticandyou'llfig ureitoutinnotimegoodluck!dontforgettoincludecurren tspeedanddirectionitsnothardreally.
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post #6 of 10 Old 06-08-2011
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Quote:
Originally Posted by puddinlegs View Post
ithinkujusthave2dosomesimplearithmaticandyou'llfig ureitoutinnotimegoodluck!dontforgettoincludecurren tspeedanddirectionitsnothardreally.
Puddin'......you bad!!

Ron

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".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
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post #7 of 10 Old 06-08-2011
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Your speed can be approximated by 1.34 times the square root of the LWL. It is purely The "Theoretical" maximum speed is based on the length of the boat at the water line (LWL). For a 16 foot boat it yields 5.36 knts. It does not account for sail area, keel type, etc. You can also look up the polar diagram for your boat. Remeber this is the maximum speed so you need to use proper judgement.
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post #8 of 10 Old 06-08-2011
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Quote:
Originally Posted by setmefree View Post
Your speed can be approximated by 1.34 times the square root of the LWL. It is purely The "Theoretical" maximum speed is based on the length of the boat at the water line (LWL). For a 16 foot boat it yields 5.36 knts. It does not account for sail area, keel type, etc. You can also look up the polar diagram for your boat. Remeber this is the maximum speed so you need to use proper judgement.
Or, maybe easier with a:



Sometimes easy is good. Will also give you the distance to get home and you can probably figure out the time it would take.

Rik

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post #9 of 10 Old 06-08-2011
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3-4 knts an hour is a safe bet for your actual straight line speed
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post #10 of 10 Old 06-09-2011
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Unless you really have to go to work the next day, I won't worry about it. Just enjoy your sail....

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