flight calibration

Where Technical Excellence Meets Operational Reliability

Flight calibration services

specialising in instrument landing systems

Instrument flight calibration is a critical component of aviation safety, ensuring that every navigation aid, landing system and flight procedure performs exactly as designed. As airspace becomes more complex and airports operate at higher capacity, the need for precise, reliable instrument flight calibration has never been greater. At ACAM Global, we deliver world-class calibration services that uphold international standards and support safe, predictable aircraft operations across the Asia–Pacific region and beyond.

Instrument flight calibration involves the rigorous testing and verification of ground-based and satellite-based navigation systems, including ILS, VOR, DME, PAPI, RNAV and RNP procedures. Using specialised aircraft, calibrated equipment and highly trained flight inspectors, each system is evaluated under real-world flight conditions. These tests confirm that the signals pilots rely on during every phase of flight—from en-route navigation to final approach—are accurate, stable and compliant with ICAO specifications.

What sets ACAM Global apart is our commitment to precision, consistency and operational excellence. Our dedicated calibration fleet is equipped with the latest inspection technology, enabling rapid deployment, reduced downtime and consistently reliable results. Every mission is conducted by experienced flight inspection crews who understand the nuances of terrain, climate, and airport operations across diverse environments. This expertise allows us to provide tailored solutions for international airports, regional facilities, military bases and emerging aviation infrastructure projects.

Beyond technical accuracy, effective instrument flight calibration supports broader aviation performance. Well-maintained navigation aids reduce delays, improve approach stability, minimise fuel burn and enhance runway utilisation. For developing airfields or airports undergoing major upgrades, timely calibration ensures systems are certified and ready for operational use, supporting commercial growth and regional connectivity.

ACAM Global also provides end-to-end support, including calibration planning, regulatory compliance guidance, data analysis and detailed reporting. Our long-standing relationships with aviation authorities and industry partners ensure that every calibration project meets the highest global standards while accommodating local operational requirements. By integrating advanced technology with deep industry experience, ACAM Global delivers calibration programs that are efficient, transparent and cost-effective.

In an industry where precision directly impacts safety, instrument flight calibration is an essential safeguard. ACAM Global is proud to be a trusted partner for airports and aviation agencies seeking accuracy, reliability and technical excellence. With proven capability across seven countries and growing international demand, we continue to strengthen aviation networks with dependable calibration solutions that keep aircraft—and communities—safe.

ILS FLIGHT CALIBRATION

ILS flight calibration is the process of testing and verifying the accuracy of an airport’s Instrument Landing System (ILS), one of the most critical navigation tools used during approach and landing. The ILS provides precise lateral (Localiser) and vertical (Glide Path) guidance to pilots, enabling safe landings in low-visibility or challenging weather conditions.

During ILS flight calibration, a specialised inspection aircraft flies a series of predetermined patterns to assess how accurately the system is transmitting its signals. These checks measure signal strength, alignment, glide slope integrity, interference, and compliance with ICAO standards. Any inconsistencies are identified and corrected to ensure the system performs exactly as designed.

Regular ILS flight calibration is essential for maintaining safe runway operations, reducing the risk of navigational deviations, and ensuring aircraft receive dependable guidance every time they approach the airfield. ACAM’s advanced calibration capability delivers precise, reliable results that keep critical landing systems performing at the highest level.

VOR FLIGHT CALIBRATION

VOR flight calibration is essential to ensuring the accuracy, reliability and safety of one of aviation’s most established navigation systems. A VOR beacon provides directional guidance to aircraft, allowing pilots to navigate en-route with confidence. Through VOR flight calibration, specialised inspection aircraft measure the beacon’s signal strength, bearing accuracy, stability and resistance to interference across multiple altitudes and distances.

ACAM conducts VOR calibration flights using advanced flight inspection technology and highly trained crews who evaluate performance under real operating conditions. These tests confirm that the VOR is transmitting precise radial information, enabling predictable routing and safe separation within controlled airspace.

Consistent VOR flight calibration helps prevent navigational deviations, enhances situational awareness for pilots and supports efficient airspace management—particularly in regions where mixed navigation systems are used. With extensive multi-country experience, ACAM delivers accurate, timely and ICAO-compliant VOR calibration services tailored to airports and air navigation providers worldwide.

DME FLight calibration

DME flight calibration is essential to verifying the accuracy and performance of Distance Measuring Equipment, a navigation aid that provides aircraft with precise distance information relative to a ground station. Through DME flight calibration, specialised inspection aircraft assess the system’s timing accuracy, signal strength, coverage, and reliability across different altitudes and ranges to ensure full compliance with ICAO standards.

ACAM conducts DME calibration using advanced onboard technology, allowing our crews to analyse real-time system behaviour in diverse operating environments. These tests validate that distance readings remain consistent and dependable, supporting both en-route navigation and approach procedures.

Accurate DME performance is critical for situational awareness, separation assurance, and seamless integration with VOR, ILS and RNAV systems. Regular DME flight calibration reduces navigational errors, enhances route predictability and strengthens the overall safety and efficiency of airspace operations. ACAM delivers timely, precise and cost-effective calibration tailored to airports and air navigation providers worldwide.

radar flight calibration

Radar flight calibration is vital to ensuring the accuracy and integrity of surveillance systems that track aircraft movements within controlled airspace. Primary and secondary radar support air traffic control by providing real-time positional, altitude, and identification data. Through radar flight calibration, specialised aircraft test radar coverage, detection accuracy, response timing, and signal reliability across multiple headings, altitudes, and distances.

ACAM conducts radar calibration using advanced instrumentation that captures how surveillance systems perform under real operating conditions. This process verifies that controllers receive precise radar returns that align with the aircraft’s true position, enabling safe separation, efficient traffic flow, and reliable situational awareness.

Regular radar flight calibration is essential to identifying blind spots, validating system upgrades, and ensuring compliance with regulatory standards. By combining technical expertise with multi-country operational experience, ACAM provides accurate, timely, and cost-effective radar calibration solutions that enhance the safety and efficiency of national airspace systems.

Setting the Benchmark in Instrument Flight Calibration Services Worldwide

At ACAM Global, we set the benchmark in instrument flight calibration services by combining technical precision with an unwavering commitment to customer service, operational efficiency, and rapid deployment. Across commercial airports, defence airfields and emerging aviation networks, our clients trust us because we deliver calibration solutions that are accurate, timely, and tailored to the unique demands of each airspace environment.

What truly distinguishes ACAM Global is our customer-first approach. We understand that every airport, navigation aid and air navigation provider operates under different pressures—capacity demands, environmental challenges, regulatory timelines and budget constraints. Our calibration programs are designed around these realities. From initial planning to mission execution and post-flight reporting, we work collaboratively with our clients to ensure complete clarity, minimal disruption and seamless integration with ongoing airport operations. Our teams remain accessible, responsive, and proactive, offering guidance that supports long-term infrastructure reliability and compliance.

Efficiency and speed sit at the core of ACAM Global’s service model. Our dedicated calibration fleet is engineered for quick mobilisation, enabling fast response times across multiple countries and regions. Whether supporting routine annual checks or urgent post-upgrade inspections, we prioritise operational continuity for our clients. This means shorter scheduling windows, reduced navigational downtime, and a smoother path to system certification. By utilising advanced flight inspection technology, our crews capture precise data in fewer passes, accelerating both inspection and reporting without compromising accuracy.

Speed, however, is never achieved at the expense of safety or detail. Our experienced flight inspectors, engineers and pilots follow rigorous procedures that ensure every calibration mission meets or exceeds ICAO standards. Their deep technical expertise allows us to anticipate challenges, conduct efficient on-site assessments, and deliver recommendations that support both immediate requirements and long-term system health.

By pairing world-class technical capability with exceptional customer service, ACAM Global continues to lead the industry in instrument flight calibration. Our clients rely on us not only for the accuracy of our work, but for the confidence, clarity and operational efficiency we bring to every mission—setting a global benchmark in safety, reliability and service excellence.

Frequently Asked Questions

  • Flight calibration is the process of testing and verifying the accuracy of airport navigation aids and flight procedures. It ensures systems like ILS, VOR, DME, PAPI and RNAV are performing safely, consistently and in line with ICAO standards. Regular calibration is essential for maintaining safe and efficient airspace operations.

  • Calibration frequency depends on regulatory requirements, equipment type and local environmental factors. Most systems require annual or biannual calibration, with additional inspections recommended after upgrades, weather events or major infrastructure changes. ACAM advises on optimal scheduling to ensure full compliance.

  • ACAM provides comprehensive calibration for ILS, VOR, DME, TACAN, PAPI, RNAV/RNP procedures, approach lighting systems and other visual and radio navigation aids. Our specialised fleet and equipment allow us to service airports of all sizes.

  • ACAM combines advanced flight inspection technology with highly experienced flight crews and engineers. Our rapid deployment capability, multi-country operational experience and detailed reporting ensure airports receive accurate, timely and cost-effective calibration.

  • Absolutely. Every owner is assigned a personalised aviation manager who oversees all operations, ensures clear communication, and provides a seamless, transparent ownership experience.