MadSci Network: Physics

Subject: What is the fastest point of sail for a windsurfer? Why?

Date: Wed Apr 12 02:50:53 2000
Posted by Judi
Grade level: 7-9 School: Maui Ocean Academy
City: Haiku State/Province: HI Country: USA
Area of science: Physics
ID: 955525853.Ph

Aloha-- I am a teacher at the Maui Ocean Academy (where students work 
on academics in the morning and hit the ocean in the afternoons to train 
for surfing and windsurfing).  I am interested in finding science 
websites which specifically relate to the physics of windsurfing and 
Know of any?  If not, can you explain how a windsurfer terms of 
the lift like on, that would be great! BTW Spectacular 
 We have found a site on "newton's 
apple" regarding windsurfing; however, we do not use daggerboards on Maui 
since it is way too windy (so the answer isn't complete).  We are also 
trying to find the fastest point of sail.  If the wind is blowing from noon 
(like a clock)...the students are trying to argue that the fastest point of 
sail is at 9 and 3 o'clock.  Since I used to race, I know that the fastest 
point of sail is actually between 4 and 5, and 7 and 8 o'clock (also when 
you are sailing a big board with a daggerboard you retract the daggerboard 
on this reach--called a broad reach--why?).  So, who is right, and why?  

Re: What is the fastest point of sail for a windsurfer? Why?

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