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In one of the LBA handbooks from the 1980s or early 1990s, there was a full feature about the runway surface being diamond-grooved after the runway was extended. I recall it saying that after many years of use, it became necessary to diamond-groove the runway to maintain good braking action, which was then regarded as the best achievable on a concrete runway. The feature was referring to the time around when the runway was extended so it was an inaccurate of the YouTuber to assume the old runway had its grip warn away.
It was a good video and I enjoyed it. It has been a good discussion in the end.
Interestingly according to Google AI a dry groved concrete runway has the best possible grip of any available runway surface but when wet a grooved asphalt runway becomes better. (subject to possible errors from AI)
If anyone has a copy of the LBA handbooks from that era, perhaps you can check and see how good my memory is?
It was a good video and I enjoyed it. It has been a good discussion in the end.
Interestingly according to Google AI a dry groved concrete runway has the best possible grip of any available runway surface but when wet a grooved asphalt runway becomes better. (subject to possible errors from AI)
If anyone has a copy of the LBA handbooks from that era, perhaps you can check and see how good my memory is?