3 ms·

A large number of those missions were flow for the DoD, repairing/refuling satellites and potentially also capturing enemy satellites.

by grinich 11y ago

creshal 11y ago
Large? Of the 135 flights, almost 50 went to Mir/ISS, doing work that should have been done by Soyuz/Progress/TKS-equivalent spacecraft in the $100-200 million range. 32 more made Spacelab flights, aka "poor man's excuse for a space station". The remainder were split between commercial satellite deployments (best left to unmanned boosters), regular scientific missions (the same already done on Gemini and Apollo capsules), missions that could have been cheaper put on a satellite (e.g. radar mapping), and very few missions the Shuttle was actually useful for – DoD missions and scientific recovery of large payloads (the only mission profile the Shuttle alone was uniquely suited for). Even Hubble's repair could have been done with capsules (the JWST is planned to be maintainable by Orion capsules, should maintenance ever be needed).
- grinich 11y ago
  There were at least 11 classified NRO missions, and likely more with NRO tasks. Requirements from the NRO directly influenced the shuttle program design. I guess "large" is an exaggeration though. They obviously didn't use Shuttle exclusively for military purposes. But most people don't realize that nearly all government-funded scientific programs in the US also have significant defense/NRO objectives. Even The Dish at Stanford was funded to be used for SIGINT work during the Cold War. I'd wager that these groups are now using advanced robotics to replace classified work previously done via Shuttle missions. i.e. Boeing X-37 I don't think there's any maintenance plan for JWSP, capsule or otherwise. L2 is way too far away. Do you mean maintenance after launch but before deployment?

3 ms·

A large number of those missions were flow for the DoD, repairing/refuling satellites and potentially also capturing enemy satellites.

by grinich 11y ago

A large number of those missions were flow for the DoD, repairing/refuling satellites and potentially also capturing enemy satellites.

creshal 11y ago
Large? Of the 135 flights, almost 50 went to Mir/ISS, doing work that should have been done by Soyuz/Progress/TKS-equivalent spacecraft in the $100-200 million range. 32 more made Spacelab flights, aka "poor man's excuse for a space station". The remainder were split between commercial satellite deployments (best left to unmanned boosters), regular scientific missions (the same already done on Gemini and Apollo capsules), missions that could have been cheaper put on a satellite (e.g. radar mapping), and very few missions the Shuttle was actually useful for – DoD missions and scientific recovery of large payloads (the only mission profile the Shuttle alone was uniquely suited for). Even Hubble's repair could have been done with capsules (the JWST is planned to be maintainable by Orion capsules, should maintenance ever be needed).
- grinich 11y ago
  There were at least 11 classified NRO missions, and likely more with NRO tasks. Requirements from the NRO directly influenced the shuttle program design. I guess "large" is an exaggeration though. They obviously didn't use Shuttle exclusively for military purposes. But most people don't realize that nearly all government-funded scientific programs in the US also have significant defense/NRO objectives. Even The Dish at Stanford was funded to be used for SIGINT work during the Cold War. I'd wager that these groups are now using advanced robotics to replace classified work previously done via Shuttle missions. i.e. Boeing X-37 I don't think there's any maintenance plan for JWSP, capsule or otherwise. L2 is way too far away. Do you mean maintenance after launch but before deployment?