Singlespeed & Fixed Gear - Wheels stalling?

While looking around at different rims and such I saw they talk about the wheels stalling? For example "When the yaw angle goes past 15° the aero spokes work to keep the wheel from stalling, and drag stays flat." from the hed website under the three spoke clincher.

i don't believe you.

if you're not lying, it's talking about the wheel's aerodynamic properties in crosswinds. they don't mean stall in the sense of a helicopter's blades or a plane going too slow to provide sufficient lift to stay stable... they mean wheel specific physical scenarios.

but i still think you're lying. link don't just cite vaguely.

http://www.pacificfab.net/gallery/d/1563-1/Oh+Snap.jpg

dude, you suck at reading. Here's what it says:

"blah blah blah psuedo-aerophysics bs blah blah blah buy our expensive crap"

Lol anyways I still don't get the term stalling, I do understand my rim isn't a hellicopter.

Link

http://www.hedcycling.com/wheels/H3_clincher.asp

TRIPLE POST

Does it mean that the aerodynamic properties of the wheel will stall making it less aero in over 15 degrees of yaw while the H3D is more aero above 15 degree yaw?

Just in case you're not aware, you can edit your posts in case you forgot something, to prevent

DOUBLE POSTS and TRIPLE POSTS

I'm on my phone and it doesnt let me edit, sorry.

"The optimum wind angle for the H3 is an amazing 17.5°"

this is what they're saying. not that the wheel's gonna fall out of the sky, just that it cuts through the wind the best at an angle that's higher than 15 degrees.