DESCRIPTION: At Le Bourget the presentation of the hypersonic aircraft Zehst from EADS Astrium, which could see daylight in 2030 ... Cruising speed - Mach 4 !
DESCRIPTION: At Le Bourget the presentation of the hypersonic aircraft Zehst from EADS Astrium, which could see daylight in 2030 ... Cruising speed - Mach 4 !