This dataverse contains the configuration controlled documentation for the SOFIA Telescope Assembly subsystem 3100 Rotation Isolation Assembly (RIA): The RIA's primary purpose is the rotatory uncoupling of telescopes and aircraft movements. Its second task is to maintain the pressure difference between the cabin and cavity in flight.

The SOFIA TA Technology and Operations Archive Manual contains a guide how to use the archive as well as an overview of the SOFIA TA Hardware Breakdown Structure (HBS).

The RIA component is organized according to the HBS and contains subsystems as listed in the following tree structure:

0000 SOFIA Telescope Assembly/3000 Suspension Assembly/3100 Rotation Isolation Assembly
├── 3110 Bearing Sphere Assembly
├── 3120 Bearing Rings (incl. Sensor system)
├── 3130 Oil Supply
│   ├── 3131 Oil Supply Unit
│   ├── 3132 Add On Items
│   └── 3133 Piping Through Cradle
├── 3150 Cradle & Stator Structure
│   ├── 3151 Inner Cradle
│   ├── 3152 Outer Cradle
│   ├── 3153 Stator Carrier Cabin
│   ├── 3154 Stator Carrier Cavity
│   ├── 3155 Bracket Spherical Sensor
│   ├── 3156 Electrical Wiring
│   └── 3157 Stator Structure
├── 3170 RIA Insulation
│   ├── 3171 Inner Shell
│   └── 3172 Insulation of Tube Structure
└── 3180 Bearing Seal
    ├── 3181 Labyrinth Seal
    ├── 3182 Vapor Seal
    └── 3183 Pressure Compensation