Re: [PSUBS-MAILIST] How much HP?

[Michael B Holt <tlohm@juno.com>]

On Sat, 14 Jun 2003 22:37:21 -0400 DJACKSON99@aol.com writes:
>
> What I need to know is how much 
>horse power will be needed in order to get the boat to plane and at 
>what speed the boat will plane? I am not so interested in going 30 mph 
>but I do want to be sure that the engine selected can obtain planing 
>speed.  
>
>Length 20 feet
>Water Line Length: 17 feet
>Beam: 50 inches
>Hull: 12 degree V-Hull
>Draft: Aprox 16 inches
>Displacement: Aprox 4400 to 4900 (depending on engine weight)

>From John Teale's book "How to Design a Boat," There's a 
chart on page 83.   Using the chart:  20 feet and 2.0 tons;.
from "Transom and very flat stern,"  it looks like 15 knots out
of 89 horsepower.



Mike Holt

>Design Images: 
>http://members.cox.net/djackson001/sub/Sub_H7_files/Sub_H7.htm
>
>I certainly appreciate any help!
>Doug Jackson
>


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