Did you mean: Zero Emission Hypersonic Transport
Zero Emission Hyper Sonic Transport
Aircraft model
The Zero Emission Hyper Sonic Transport or ZEHST is a planned hypersonic passenger jet airliner project by the multinational aerospace conglomerate EADS and the Japanese national space agency JAXA.
On 18 June 2011, the ZEHST concept was unveiled... Wikipedia
Status: In development