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How much does added weight effect your speed ?

Old 07-21-2004, 05:05 PM
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Default How much does added weight effect your speed ?

I have in my head from somewhere that for every 200-225 pounds that you lose 2 mph. What I dont remember is at what weight level that applies to ?


200 pounds effects a 5000 pound boat moreso than a 10,000 pound boat if they both run the same top speed, right ? Can anyone explain or is there a formula that can explain how much weight effects things in a boat ?

Thanks in advance.
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Old 07-21-2004, 05:10 PM
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Default Re: How much does added weight effect your speed ?

Actually, I don't see anything near a 2 mph difference in my boat's speed whether I'm alone or have 2-3 others with me. Granted, most of my friends weigh less than 200 lbs. 24 Baja Outlaw, currently without power though....
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Old 07-21-2004, 05:12 PM
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Default Re: How much does added weight effect your speed ?

Originally Posted by Waterfoul
Actually, I don't see anything near a 2 mph difference in my boat's speed whether I'm alone or have 2-3 others with me. Granted, most of my friends weigh less than 200 lbs. 24 Baja Outlaw, currently without power though....

Mike, you forgot to mention that you drag an anchor all the time so that probably has more to do with it than the 2 added guys . . . .Bwahhhhahah
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Old 07-21-2004, 05:24 PM
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Default Re: How much does added weight effect your speed ?

I suspect that air temperature and humidity has more effect than a few hundred pounds, at least in my experience in a single 28' boat. I've had one passenger and light fuel in hot/humid days, and I was faster with 3 friends & full fuel on a cooler fall day. I know this doesn't answer your question, but other factors come in to play also.
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Old 07-21-2004, 05:24 PM
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Default Re: How much does added weight effect your speed ?

sure, - without power I imagine that 24 outlaw would go the same speed with 12 people...ZERO.
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Old 07-21-2004, 05:26 PM
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Default Re: How much does added weight effect your speed ?

OK, OK, OK.... I'm talking about WHEN my boat ran. Sheesh!!
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Old 07-21-2004, 05:30 PM
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Default Re: How much does added weight effect your speed ?

Originally Posted by Indy
I suspect that air temperature and humidity has more effect than a few hundred pounds, at least in my experience in a single 28' boat. I've had one passenger and light fuel in hot/humid days, and I was faster with 3 friends & full fuel on a cooler fall day. I know this doesn't answer your question, but other factors come in to play also.
I agree and understand that temp / humidity / water conditions / etc can and do effect things as well.

I'm wanting to know if there is a formula that determines how weight effects things when all other things are equal or are accounted for.

Thanks guys.
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Old 07-21-2004, 05:31 PM
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Default Re: How much does added weight effect your speed ?

Originally Posted by Waterfoul
OK, OK, OK.... I'm talking about WHEN my boat ran. Sheesh!!
haha . . rough crowd !
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Old 07-21-2004, 05:38 PM
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Default Re: How much does added weight effect your speed ?

come on now....

I couldn't let that go un-noticed.

If I wouldn't have said it, someone else would have
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Old 07-21-2004, 05:44 PM
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Default Re: How much does added weight effect your speed ?

Jamie'
I think it depeends on the type of hull as well as the brand. In my 42 fountains I never saw much if any difference. However in my can there is an noticeable difference. I think the formula for it is 1mph for ever 200lbs and the nortech is similiar.
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