Windfoil Foil sizes ?

windward1 · Joined: 18 Jun 2000 Posts: 1400

Engineers can make mistakes too. I made one once.....I think.

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

C'mon, these comments are half joking.
I know engineers are vital to society beyond the stone age.
Heck, if it wasn't for surfing, I might have become an engineer.
Bit this is a time of shelter in place, and boredom is one of our biggest enemies.
And I do regularly windsurf with a handful of engineers and scientists.
UC Berkeleys Rad Lab is 3 miles from our launch site.

LUCARO · Joined: 07 Dec 1997 Posts: 661

Windsurfing is art and science. Sometimes people use a biased view of the science to justify why their art works, but really they are just really really good artists.

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

Have you ever TALKED to an engineer who windsurfs?

LUCARO · Joined: 07 Dec 1997 Posts: 661

underwood · Joined: 15 May 2010 Posts: 54

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

Ever windsurf IN fog?
Easy .5 smaller sail.

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

Moist air, yes.
Pressure differential above and below, yes.

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

And try thinking for a change.
When an airplane flies into a cloud layer, it not only encounters turbulence, but it needs ADDED power to fly thru due to INCREASED resistance from moist air.

windward1 · Joined: 18 Jun 2000 Posts: 1400

Clouds and fog are not gaseous water alone. The part that you can see is LIQUID water. IT is what happens when you get to that left curved line on the Psychometric Chart. That is called the Saturation Curve. Once conditions bump up against it, 100% Relative Humidity, the gaseous water starts to come out as liquid water. Now we are no longer talking about a gas mixture alone. Tiny droplets of suspended liquid are present.

Then there is supercooled water which can happen in clouds as well. But I will leave that for another spiel.

Or not.