SailNet Community - View Single Post - How easily driven is a particular hull?
View Single Post
  #6  
Old 07-20-2011
JimsCAL's Avatar
JimsCAL JimsCAL is offline
Senior Member
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,382
Thanks: 1
Thanked 34 Times in 33 Posts
Rep Power: 8
JimsCAL is on a distinguished road
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.
Reply With Quote Share with Facebook