Description

Runway surface friction is directly relevant to the braking action which will be available to an aircraft decelerating after touch down, or after a decision to reject a take off.

Anti-skid braking systems are fitted to most multi-crew aircraft; these prevent wheel locking and can allow more aggressive brake input for wheels which are rotating on wet or otherwise slippery runways, without inducing dynamic or viscous aquaplaning. Hard surface runways may be constructed using either concrete or rolled asphalt but the principles which affect their operational characteristics in respect of aircraft braking response are the same.