How do you determine motor size

[lee@simmtechs.c]

Would like to know the best way to determine motor size and hp for any boat size

[tom28571]

Look at the thread in

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

Explains all.

[cyclops]

The size is determined by how fast you go and how much money is available. Any other statements confuse the decision.

[gonzo]

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]

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]

this depand in how fast you would like to go!
Faster, biger engine,slower,smaller engine!

[gonzo]

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.