Noun
ground speed (plural ground speeds)
Alternative form of groundspeed.
In the year before his death, Post made several attempts at a high-altitude transcontinental flight, and noticed that at times his ground speed greatly exceeded his air speed. Source: Internet
His average ground speed over the flight was convert. Source: Internet
Some basic processing occurs on the radar tracks, such as calculating ground speed and magnetic headings. Source: Internet
The range can be seen as the average ground speed multiplied by the maximum time in the air. Source: Internet