The first new generation transport Dinomark, the MX, has entered service. The MX is roughly 4 times the size of an XT and indeed in some ways is a scaled up XT though with 2 engines.
25 MXs are on order, the Dinos have ordered at least 6 for the first year. They fill an important gap between existing Dinomarks and larger transports like the Provider-EDA and SX-98.
