On 29 Jan, 15:13, "Chris Kidd" wrote:
It's probably been discussed before, but...

I don't think it has, but here's my thoughts....

I think that the RG with the rim flush with the ground should be in a
pit with a coarse mesh surrouding it also flush with the ground like a
huge grid - this has the effect of reducing wind turbulence IIRC.

Just remember some uni experiments to show this on Plynlimon.

Steve J