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View Full Version : How do you determine motor size

lee@simmtechs.c
11-20-2005, 10:09 AM
Would like to know the best way to determine motor size and hp for any boat size
tom28571
11-20-2005, 10:15 AM
Look at the thread in

http://boatdesign.net/forums/showthread.php?t=8819&page=2

Explains all.
cyclops
11-20-2005, 04:58 PM
The size is determined by how fast you go and how much money is available. Any other statements confuse the decision.
gonzo
11-20-2005, 09:28 PM
Not at all. There are structural and legal limits to engine size; money does not determine that. Each boat will need specific calculation to determine motor size and HP. There are many considerations including expected application, fuel economy, availability, etc.
cyclops
11-20-2005, 09:41 PM
Legaly for insuring the boat ,there is a load capacity and maximum horsepower for the boat on a plastic card near the steering wheel on most boats. Go over the horsepower or max. # of people and a insurance company does not pay for anything. You are commiting a crime. Simple?
roko
11-22-2005, 11:08 AM
this depand in how fast you would like to go!
Faster, biger engine,slower,smaller engine!
gonzo
11-22-2005, 03:48 PM
Power per unit of wieght will determine speed. A smaller engine that is lighter and requires less fuel can be faster. You need to consider the boat as a whole and not each component in isolation.

View Full Version : How do you determine motor size