The Japan International Cooperation Agency (JICA) has encouraged the Vietnamese aviation authorities to replace the current north-south flight path with a straight shot through the airspace of Laos and Cambodia, VnExpress reported.
In its reply to the Civil Aviation Authority of Vietnam (CAAV), the Japanese business consortium said that it had reviewd flight simulations for the straight north-south route provided by CAAV and concurred with its findings.
On September 3, Vietnam Airlines and CAAV ran flight simulations of the new Hanoi and Ho Chi Minh City route.
The new flight path is 85 kilometers shorter than the current route that follows the coastline, according to the simulations. Pilots said that they had to decelerate earlier than on the current path, which saved just five minutes from the total flight time.
The new flight path saved 190 kilograms of fuel, according to flight simulation results.
Vietnam Airlines and the CAAV said they have tested both types of plane used on the route: the Boeing 777 and Airbus 321.
The simulations were run to determine whether the 1,140-kilometer straight shot from Hanoi to HCMC (through the airspace of Laos and Cambodia) saves more time and fuel than the traditional flight path, which is 1,274 kilometers long.
According to JICA, Vietnam should go ahead with the “golden flight path” as it is shorter than the current one.