parabellum, et al.
More recent and in-depth (!) information, tyres, anti skid, runway texture, here:- (19MB)
https://www.futuresky-safety.eu/wp-c..._D3.3_v2.0.pdf
With this greater understanding and issues of different tyre construction, variable runway surfaces, etc, I wonder if the current (updated) wet landing distance calculations still provide the same landing distance safety margins previously assumed