b) the lack of correlation between a friction reading taken at 40MPH using a machine you can lift with one hand and the braking action of an a/c doing 100kt+ and massing 50tonnes or more.
I find that odd, back in the late 60's or early 70's (can't remember exactly) I did a long series of trials @ Waddington & Scampton doing just that with all RAF aircraft. The aircraft ran through a 2000ft long test section on the runway, full braking used on a dry runway we would then flood the runway & repeat. I wasn't involved with the analasys work so I don't know what the outcome was
