Hi Guy:
The tunnel opening was roughly 3' x 3'. We always set up
and then waited an hour or two before testing. We had no problem with
thermal gradients.
Regards,
P.C. Chen
On 4/1/07, Guy Brandenburg <gfbrandenburg at yahoo.com> wrote:
> Hi, Peter,
> Without the temperature control, did you find that the thermal gradients
> were bothersome?
> Guy