Appendix C Shuttle Upgrades Presented to the Committee
Phase II
Orbiter Projects
Global positioning systems
Multifunction electronic display systems
Advanced master electronics controllers
Thermal protection system improvements
Shuttle integrated global positioning system and inertial navigation system
Micrometeoroid and orbital debris protection
Advanced air data transducer assembly
Reinforced carbon-carbon upgrade
Solid state recorder/mass memory storage unit
Solid state lights
Precision approach
Wireless video
Checkout and launch control system
Integrated vehicle health management
Fiber-optic flight experiment
Standard single payload carrier study
Less toxic thermal protection system waterproofing
Reusable Solid Rocket Booster Projects
Hydraulic power unit fuel isolation valve/shaft seal
Aft skirt factor of safety bracket
Composite solid rocket booster nose cap
External Tank
External tank ground umbilical carrier assembly upgrades
Friction stir welding
Extravehicular activity projects
Phase III
Channel-wall nozzle
Reusable solid rocket motor J-joint insulation upgrade
Avionics upgrade
Auxiliary power unit replacement,
Nontoxic orbital maneuvering system/reaction control system
Regenerative carbon dioxide removable system
Water membrane evaporator
Extended nose landing gear
Main propulsion system electromechanical actuator
Phase IV
Solid rocket motor fifth segment
Liquid fly-back booster