These airfields were intended for use by returning bombers suffering from low fuel and/or suspected damage to their pneumatic (wheel brake) and/or hydraulic (undercarriage) systems. All three airfields were equipped with one runway,  long and  wide. There was a further clear area of  at each end of the runway.
These airfields were designed to accommodate returning bombers experiencing low fuel levels and/or suspected damage to their pneumatic (wheel brake) and/or hydraulic (undercarriage) systems. All three airfields had a single runway, which was long and wide. There was an additional designated area at each end of the runway.