SailNet Community - View Single Post - Make the mark
Thread: Make the mark
View Single Post
  #11  
Old 09-24-2011
WDS123 WDS123 is offline
Banned
 
Join Date: Apr 2011
Location: Southern California
Posts: 649
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
WDS123 is on a distinguished road
1) Why is 1knt of current = 4knts of wind ?


Water is denser that air.


I was taught a rule of thumb tHat water is 15 times denser than air- have no idea if this is accurate, but it helps me to fathom current vs. Breeze issues.


2) Laying a mark: sailing near shore the wind will have big shifts ( lifts and headers ) . tide will also change quite a bit depending on bottom, there might also be reverse eddies. Therefore, one needs to be well aware of local conditions up the course and be aware that the conditions at the make may be different than 1 mile away.

This is what make sailing such a pleasure - the playing field is a constantly changing surface
Reply With Quote Share with Facebook