CONTAMINATED RUNWAY : A runway is considered to be contaminated when more than 25% of the runway surface area (whether in isolated areas or not) within the required length and width being used is covered by the following:
1. Surface water more than 3 mm (0.125 inches) deep, or by slush, or loose snow, equivalent to more than 3 mm of water.
2. Snow which has been compressed into solid mass which resists further compression and will hold together or break into lumps if picked (compacted snow), or
3. Ice, including wet ice.
DRY RUNWAY : A dry runway is one which is neither wet nor contaminated, and includes those paved runways which have been specially prepared with grooves or porous pavement and maintained to retain “effectively dry” breaking action even when moisture is present.
WET RUNWAY : A runway is considered wet when the runway surface is covered with water, or equivalent, less than specified as in contaminated runway above or when there is sufficient moisture on the runway surface to cause it to appear reflective, but without significant areas of standing water
*According to JAR-OPS 1
My note: Never flex in case of Contaminated Runway
My question...
Do you continue considering to use wet V1 if you don´t flex?
BR.