THE AIRLINE PILOTS FORUM & RESOURCE

The ACN/PCN (Aircraft/Pavement Classification Number) system was replaced by the ACR/PCR (Aircraft/Pavement Classification Rating) system in November 2024. According to ICAO Annex 14, ACR/PCR is the new standardized method for reporting the bearing strength of pavements intended for aircraft with a mass greater than 7,500 kg. However, states may still publish PCN values for their airports. Therefore, this app calculates either the required aircraft weight for a given ACN or the ACN required for a given aircraft weight.