What does SSTO stand for?

SSTO stands for "Single-Stage-to-Orbit"

How to abbreviate "Single-Stage-to-Orbit"?

"Single-Stage-to-Orbit" can be abbreviated as SSTO

What is the meaning of SSTO abbreviation?

The meaning of SSTO abbreviation is "Single-Stage-to-Orbit"

What does SSTO mean?

SSTO as abbreviation means "Single-Stage-to-Orbit"