Notes:This picture is of the GRT EFIS in the panel of my Lancair IVP showing a groundspeed of 374 kts.
This picture was taken March 6th, 2008 between Springfield, MO and Cambridge, OH.
I had been at FL 230 at a steady 364 kts GS and took this picture just after starting my descent. I actually hit over 390 kts shortly thereafter but didn’t bother to take a picture because I didn’t know about your website. I have been over 400 kts several times and will send a picture someday just for the heck of it.