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[email protected] June 29th 07 03:30 AM

Horsepower vs boat length
 
Is there a rule of thumb for how much horsepower you should have
compared to boat length?

IE. 16ft power boat, should have 30-100HP, etc..


Wayne.B June 29th 07 04:02 AM

Horsepower vs boat length
 
On Fri, 29 Jun 2007 02:30:40 -0000, wrote:

Is there a rule of thumb for how much horsepower you should have
compared to boat length?

IE. 16ft power boat, should have 30-100HP, etc..


Total weight, boat+motor+people+fuel+gear is really a better measure.
Figure about 1 hp for every 30 to 40 lbs of total weight for average
performance.

Steve Barker June 30th 07 04:00 AM

Horsepower vs boat length
 
HMMMMm. I don't think my boat would perform "average" if it weighed 8100
lbs. Hell, it probably wouldn't even plane. I'd reckon somewhere's about
12-14 lbs per HP.

--
Steve Barker







"Wayne.B" wrote in message
...
On Fri, 29 Jun 2007 02:30:40 -0000, wrote:

Is there a rule of thumb for how much horsepower you should have
compared to boat length?

IE. 16ft power boat, should have 30-100HP, etc..


Total weight, boat+motor+people+fuel+gear is really a better measure.
Figure about 1 hp for every 30 to 40 lbs of total weight for average
performance.




Dan July 1st 07 12:37 AM

Horsepower vs boat length
 
Wayne.B wrote:
On Fri, 29 Jun 2007 02:30:40 -0000, wrote:

Is there a rule of thumb for how much horsepower you should have
compared to boat length?

IE. 16ft power boat, should have 30-100HP, etc..


Total weight, boat+motor+people+fuel+gear is really a better measure.
Figure about 1 hp for every 30 to 40 lbs of total weight for average
performance.


Where did you find that? 140HP for a 5000# loaded boat?

Dan

Wayne.B July 3rd 07 05:40 AM

Horsepower vs boat length
 
On Sat, 30 Jun 2007 23:37:46 GMT, Dan wrote:

Total weight, boat+motor+people+fuel+gear is really a better measure.
Figure about 1 hp for every 30 to 40 lbs of total weight for average
performance.


Where did you find that? 140HP for a 5000# loaded boat?


More like 170 hp if you use the lower end of the estimate.

There's no science in it at all, just a guesstimate based on my
personal experiences with a number of different boats. I'd be the
first to agree that it will not necessarily yield optimal performance
or engine life but will certainly get most boats up on plane and
moving half way decently. Don't under estimate the weight of people,
fuel and gear. It adds up very quickly, and brings required
horsepower along with it.

D-unit July 12th 07 08:51 PM

Horsepower vs boat length
 

wrote in message
ps.com...
Is there a rule of thumb for how much horsepower you should have
compared to boat length?

IE. 16ft power boat, should have 30-100HP, etc..


Usually,

The hull manufacturer will rate the hull at a maximum HP.

I wouldn't back off of this too much when choosing an outboard.

Also,

It will depend on what you're using the boat for. If your planning on
pulling a skier, you'll obviously want more power than if you are just
tooling around.


db





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