At cruise altitude (35,000-40000 feet) it goes at Mach 0.85 (that is to say, 85% of the speed of sound) which translates in a ground speed of about 570 mph or 915 km/h, but it can go as fast as Mach 0.92 (614 mph, 988 km/h) should the need arise.
â¢ VAST (adjective). The adjective VAST has 1 sense: 1. unusually great in size or amount or degree or especially extent or scope. Familiarity information: VAST used as an adjective is very rare.
Vasto is a town in the Abruzzo region of Italy, on the border with Umbria. It is about halfway down the Adriatic coast of Italy. It lies between Ortona to the north and Termoli to the south.bove the sea, on a hillside, Vasto has a charming medieval old centre whose centre is the marvellous Piazza Rossetti with the impressive Caldoresco Castle. The original parts of the castle date back to the 14th and 15th centuries.