I think the term is "Demonstrated Crosswind".
It isn't listed in Section 2 or Limitations section of the AFM as it isn't a limitation. I'm pretty sure Section 2 of the AFM is the only section that has to have FAA/CAA/CASA approval.
My understanding the Demonstrated Crosswind is the crosswind a pilot with average ability should be able to handle without difficulty.
I'm not sure it relates to control deflections at certain speeds, as Piper seems to use the same figure for a wide variety of aircraft as I think do Cesssna also. It seems to be an arbitrary number that meets the manufacturers purpose
Some operators may have their own company limits.
I don't think an insurance company could refuse cover based on the Demo crosswind being exceeded,
Last edited by 27/09; 7th Oct 2016 at 08:48.