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#1
posted to rec.boats
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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.. |
#2
posted to rec.boats
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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. |
#3
posted to rec.boats
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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. |
#4
posted to rec.boats
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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 |
#5
posted to rec.boats
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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. |
#6
posted to rec.boats
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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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