Two commercial planes completed a test flight on early Friday with a head-up display (HUD) system that allows pilots to take off and touch down safely in low visibility.

Assisted by the system, which presents data on a transparent display without requiring pilots to look away at their instruments, the pilots conducted the test with a runway visual range of 150 meters at Beijing Capital International Airport. The success will ratchet up the airport’s on-time performance rate, which is frequently battered by delays caused by bad weather like heavy fog.

Currently, less than 20 percent of Chinese cargo planes have been equipped with HUD technology, but the share is expected to grow to 50 percent by 2020, China’s civil aviation administrator estimated.