WITH THE BEST LANDING SYSTEM
Every winters, when northern India experiences severe fog, aircraft operations during the months of December to mid-february are acutely impacted. Low Visibility Procedures for CAT-III B (when runway visual range is less than 175 m. but not less than 50 m.) operations enable the airline operators to avoid diversions and cancellations of flights. Operations during such weather conditions demand zero tolerance of concerns related to safety.
Before describing Low Visibility Procedures in detail, it is essential to explain the following terminologies used and the equipment required.
Low Visibility Procedures (LVP):
These are specific procedures applied at an aerodrome for the purpose of ensuring safe operations during Categories II and III approaches and/or low visibility takeoffs. Low Visibility Procedures incorporate safeguarding measures to mitigate runway incursions and defines operational restrictions to ensure safe Airside Operations while taking into account the available aerodrome facilities.
Five airports in India namely Delhi, Kolkata, Lucknow, Jaipur and Amritsar are equipped with Instrument Landing System (ILS) CAT-III. An Instrument Landing System uses radio signals to guide aircraft to land when pilots cannot see the runway. The CAT-III system, short for category three, is among the most advanced. Airports Authority of India has also formulated Low Visibility Procedures for Take-off (LVTO) when the Runway Visual Range (RVR) falls below 800mtr/550mtr (CAT-I conditions).