New answers tagged upper-stage
-1
The lifting capacity figures seem to be for mass delivered to LEO when stage used on top of a conventional booster. The use considered here posits the stage to already be at orbital velocity, onboard the Shuttle. Those figures are not a good comparison for use as an orbital transfer stage (e.g. lifting to GEO), or boosting to lunar/planetary mission escape ...
Top 50 recent answers are included
