Orbital Mass

Some articles on mass, orbital:

Single-stage-to-orbit - Airbreathing SSTO
... Some designs for SSTO attempt to use airbreathing jet engines that collect oxidiser and reaction mass from the atmosphere to reduce the take-off weight of the vehicle ... with this approach are No known air breathing engine is capable of operating at orbital speed within the atmosphere (for example hydrogen fueled scramjets seem to have a ... This means that rockets must be used for the final orbital insertion ...

Famous quotes containing the word mass:

    When over Catholics the ocean rolls,
    They must wait several weeks before a mass
    Takes off one peck of purgatorial coals,
    Because, till people know what’s come to pass,
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    It costs three francs for every mass that’s said.
    George Gordon Noel Byron (1788–1824)