Nagpur Airport Installs Midpoint RVR for CAT-II Ops

Nagpur's Dr Babasaheb Ambedkar International Airport (NAG) has installed a midpoint Runway Visual Range (RVR) system, a critical infrastructure upgrade designed to enhance flight safety and operational reliability during adverse weather. The installation, completed on May 9, 2026, finalizes a three-point RVR network on the runway, positioning the airport to secure Category II (CAT-II) Instrument Landing System certification. This development is a key part of a broader push to reduce weather-related flight disruptions at India's growing Tier-2 airports.

The new Midpoint Runway Visual Range equipment joins existing sensors at the touchdown and rollout (stop-end) zones of the runway. This comprehensive network provides pilots and Air Traffic Control (ATC) with precise, real-time visibility data along the entire length of the runway. Such data is a prerequisite for conducting CAT-II operations, which allow for landings in significantly lower visibility conditions than previously possible. The project was overseen by the Aerodrome Meteorological Office (AMO) Nagpur, a division of the India Meteorological Department (IMD).

According to Dr. Rizwan Ahmed, Director and Scientist-D at AMO Nagpur, the midpoint RVR will enhance the accuracy of runway visibility assessment. He stated that it will provide better operational support to pilots, ATC, and airport authorities, ultimately reducing weather-related disruptions. The AMO Nagpur is the only aerodrome meteorological office in India to hold ISO 9001:2015 certification, an achievement dated August 4, 2025, underscoring its commitment to quality management in aviation weather services. The airport, managed by the Airports Authority of India (AAI), handled approximately 2.9 million passengers in the 2024-25 financial year, making operational reliability a key priority.

Regulatory Framework

The installation directly addresses requirements set by India's aviation regulator, the Directorate General of Civil Aviation (DGCA). According to the DGCA's Civil Aviation Requirement (CAR) Section 8 Series C Part I, which governs all-weather operations, a three-point RVR system is mandatory for low-visibility take-offs and landings under CAT-II standards. The certification process verifies that an airport’s ground infrastructure, including lighting, power supply, and RVR systems, can safely guide aircraft to the runway in poor visibility.

By meeting this standard, Nagpur Airport will be equipped to handle flights when visibility is compromised by dense winter fog or heavy monsoon rains, conditions that have historically led to costly diversions and cancellations. The official portal for the India Meteorological Department provides further details on the agency's role in aviation weather support.

Industry Impact and Context

This upgrade aligns with a national trend of modernizing infrastructure at Tier-2 airports to build a more resilient national aviation network. Historically, only major metropolitan airports like Delhi's Indira Gandhi International Airport, which began its CAT-IIIB upgrade between 2005 and 2010, possessed such advanced capabilities. More recently, airports like Jaipur achieved CAT-IIIB certification in 2016, enabling it to act as a reliable diversion airport for Delhi during fog events.

Nagpur's move to CAT-II follows this strategic pattern. For airlines such as IndiGo and Air India, the upgrade promises improved schedule reliability and reduced operational costs associated with diversions. For ATC, the granular, real-time data from the three-point RVR system enables more precise and safer decision-making. Ultimately, passengers will experience fewer weather-related delays, particularly on early morning and late-night flights which are most susceptible to fog.

CAT-I vs CAT-II: Key Differences

The technical leap from CAT-I to CAT-II operations is significant, primarily defined by the minimum weather conditions required for a safe landing.

Technical Analysis

The installation of a midpoint RVR at Nagpur is more than a localized equipment upgrade; it represents a strategic enhancement of India's national aviation infrastructure. By enabling CAT-II operations, the DGCA and AAI are effectively hardening a key node in the country's air transport network against weather-related disruptions. This follows the established precedent of upgrading regional airports like Jaipur to serve as primary alternates for major hubs, thereby reducing systemic risk during widespread fog events. The move diversifies operational capacity and ensures that regional economic centers like Nagpur remain accessible year-round, supporting both passenger and cargo traffic growth. This investment reflects a mature understanding that network resilience is as critical as hub capacity.

What Comes Next

With the physical installation complete, the next step involves a rigorous calibration and inspection process. Following this, the airport will formally apply for certification from the DGCA. Based on typical timelines for such approvals, Nagpur Airport is expected to receive its official CAT-II operational certification in late 2026. This will allow airlines to begin planning and scheduling CAT-II qualified flights and crew for the subsequent winter season.

Why This Matters

This development signals a critical step in modernizing India's aviation infrastructure beyond its primary metro hubs. By equipping a major Tier-2 airport with all-weather operational capability, it enhances safety, improves airline efficiency by cutting down on costly diversions, and provides passengers with more reliable service. The move strengthens the entire national network, making it more resilient to the significant operational challenges posed by seasonal weather patterns.