SailNet Community - View Single Post - How easily driven is a particular hull?
View Single Post
post #6 of Old 07-20-2011
JimsCAL
Senior Member
 
JimsCAL's Avatar
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 3,077
Thanks: 2
Thanked 95 Times in 89 Posts
Rep Power: 9
 
Quote:
Originally Posted by shogan50 View Post
Roughly speaking power should be proportional to square of speed up to hull speed, which is close to 6.4 kts on my boat.
Actually, the power requirement goes up by the cube of speed as long as you are well below hull speed. At low speeds, frictional resistance is most important. As you approach hull speed, wave making resistance becomes most significant.
JimsCAL is offline  
Quote Share with Facebook
 
 
For the best viewing experience please update your browser to Google Chrome