Noida: With the first turboprop aircraft flight, Noida International Airport has started calibrating the ground-based radio navigation system at the greenfield facility this week.

The airport, which is scheduled to begin commercial operations by the end of this year, is located in Jewar, about 75 km from Delhi.

The airport posted, "A bright and sunny day at #NIAirport set the perfect stage for a DVO calibration flight, the first of many. A Beechcraft King Air B300 took to the skies to ensure that May all @aai_official navigation tools work flawlessly #FromTheGroundUp." Thursday at X.

According to officials, calibration flight is an aviation operation carried out to verify and fine-tune the accuracy of navigation instruments used at airports.

During the calibration flight, special aircraft equipped with precision measurement instruments fly in predetermined patterns around the airport airspace.

These instruments collect data on the performance of various navigation aids such as instrument landing systems (ILS), very high frequency omnidirectional range (VOR) stations, distance measuring instruments (DME), and Doppler VH omnirange (DVOR) stations.

DVOR, which stands for Doppler VHF Omnirange, is a type of ground-based ready navigation system used by aircraft for navigation. This provides pilots with accurate information about their position and direction relative to the DVO station.

DVOR stations emit VHF radio signals which aircraft receive and interpret to determine their bearing to the station.

The importance of calibration flights and DVORs to an airport lies in ensuring the safety and efficiency of air navigation operations.