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Questions and Answers
Which of the following best describes a single-stage-to-orbit (SSTO) vehicle?
Which of the following best describes a single-stage-to-orbit (SSTO) vehicle?
- A vehicle that reaches orbit using multiple rocket stages
- A vehicle that reaches orbit without using any rocket stages
- A vehicle that reaches orbit using only propellants and fluids
- A vehicle that reaches orbit using only one rocket stage (correct)
What is the main advantage of the SSTO concept?
What is the main advantage of the SSTO concept?
- Elimination of hardware replacement (correct)
- Higher technical challenges
- Ability to perform orbital launches from Earth
- Lower non-recurring costs
Have any Earth-launched SSTO launch vehicles ever been flown?
Have any Earth-launched SSTO launch vehicles ever been flown?
- No, no SSTO vehicles have been flown (correct)
- Only partially expendable SSTO vehicles have been flown
- Yes, multiple SSTO vehicles have been flown
- Only fully expendable SSTO vehicles have been flown
What are the non-recurring costs associated with reusable SSTO systems compared to expendable systems?
What are the non-recurring costs associated with reusable SSTO systems compared to expendable systems?
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What do SSTO vehicles potentially require?
What do SSTO vehicles potentially require?
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