DSTO Full Form - What is Full Form of DSTO?

DSTO full form is Dual Stage To Orbit

What is Dual Stage To Orbit?

A two-stage-to-orbit (TSTO) or two-stage rocket launch vehicle is a spacecraft in which two distinct stages provide propulsion consecutively in order to achieve orbital velocity. It is intermediate between a three-stage-to-orbit launcher and a hypothetical single-stage-to-orbit (SSTO) launcher.