"Commander Kinsey" wrote in message
newsp.0mkgngf3wdg98l@glass...
On Sun, 21 Jun 2020 15:40:43 +0100, alan_m wrote:

On 21/06/2020 14:53, Commander Kinsey wrote:
This:
https://www.amazon.com/Shade-Beyond-.../dp/B01G2W7IT0


Clearly designed to shield people from sun and rain. But isn't
rectangular more sensible? Triangles have those narrow corners in three
places where they shield virtually nothing.

Wind resistance? They have to survive in bad weather.

How does that help with wind?

Less wind areas.

My neighbour just put one up and it's flapping about the same as a
rectangular one would.

Wrong because of the reduced area.

In fact I'd say the more anchor points, the sturdier it is,

But more sail area.

a professional large one with about 12 anchor points stays still in the
highest winds.

Staying still isnt what matters.

And if it doesn't actually shield much,

Yes.

might as well not have it at all.

Even sillier than you usually manage and that's saying something.