Runway Dry, Damp, Wet or Grooved.
My company Ops Manual defines dry, wet and damp runway conditions, yet there is only performance data for dry or wet.
1) So what is the purpose of defining damp?
2) Legally, which data should we use if damp? After all, damp is clearly not wet, but then it is clearly not dry either!
3) Further, I thought that if a runway was grooved it could not be defined as wet, only dry or contaminated. So are we really justified in using dry performance data on a soaked grooved runway?
Although I doubt the company would object, would we be justified in declining a departure on a soaked grooved runway on the basis that it was actually wet (as in reality it is) instead of using dry data cos it is grooved, and thus cannot be "wet"?
If you get my point?