SailNet Community - View Single Post - Sailing ... transmission in reverse?
View Single Post
post #9 of Old 05-26-2014
gamayun
Senior Member
 
gamayun's Avatar
 
Join Date: Aug 2009
Location: San Francisco
Posts: 562
Thanks: 17
Thanked 28 Times in 28 Posts
Rep Power: 7
 
Re: Sailing ... transmission in reverse?

See study results (link below) from 2008, which stated the following in its findings, though I still contend that a rotating propeller will Drive_You_Crazy: "The experimental results confirm that a locked propeller produces greater drag than does a freewheeling screw (up to 100% more drag was observed, this being at higher speeds). Furthermore, for the freewheeling case, the magnitude of the hydrodynamic resistance is significantly affected by the amount of frictional torque on the shaft, low torque being accompanied by low drag."

Sailboat propeller drag
gamayun is offline  
Quote Share with Facebook
 
 
For the best viewing experience please update your browser to Google Chrome