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| SPACE | TRANSPORT: | Glossary |
| 1.5STO | : | 'one and a half' Stage To Orbit |
| GEO | : | Geosynchronous Earth Orbit |
| GTO | : | Geosynchronous Transfer Orbit |
| HTOL | : | Horizontal Take-Off and Landing |
| LEO | : | Low Earth Orbit |
| RLV | : | Reusable Launch Vehicle |
| SSTO or 1STO | : | Single Stage To Orbit |
| STOL | : | Short Take-Off and Landing |
| S/VTOL | : | Short/Vertical Take-Off and Landing |
| TSTO or 2STO | : | Two Stage To Orbit |
| VTOL | : | Vertical Take-Off and Landing |
| VTOHL | : | Vertical Take-Off Landing |
For a detailed explanation of most of these terms, please see Spacecraft Tech
Note : some of the above may also be used in combination with each other, eg: HTOL-SSTO
Comments or Questions? Mail ST at [email protected] .
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