This dataverse contains the configuration controlled documentation for the SOFIA Telescope Assembly subsystem 4000 Flange Assembly (FA): The Flange Assembly (the mechanical interface to all science instruments) comprises the Instrument Flange and the Pressure Window Subassemblies as well as the Balancing Subassembly and the Cable Load Alleviator.

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

0000 SOFIA Telescope Assembly/4000 Flange Assembly
├── 4100 Instrument Flange
│   └── 4110 INF Access Port Insulation
├── 4200 Pressure Window Subassembly
│   ├── 4210 Gate Valve Housing
│   ├── 4220 Shutter Mechanism
│   ├── 4230 Crankshaft Bearing_Actuator
│   ├── 4240 Crankshaft Bearing
│   ├── 4250 Drive Shaft ASM
│   ├── 4260 Shroud
│   ├── 4270 Limit Switch Box
│   └── 4280 Relay Housing Assembly
├── 4300 Balancing Subassembly
│   ├── 4300.1 Fine Balancing Assembly
│   ├── 4300.2 Balancing Main Plate
│   ├── 4300.3 Balancing Struts
│   ├── 4300.4 Balancing Panels and Racks
│   ├── 4320 Balancing Coarse Plates
│   ├── 4330 TA-PMA Shear Box Counterweight Assembly
│   └── 4390 TA Fixation Device
└── 4400 Cable Load Alleviator
    ├── 4410 Bulkhead Protection Shield
    └── 4430 CLA Helium Lines Brackets
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4400 Cable Load Alleviator(Deutsches SOFIA Institut, University of Stuttgart)
May 27, 2026
This dataverse contains the configuration controlled documentation for the SOFIA Telescope Assembly subsystem 4400 Cable Load Alleviator (CLA): The Cable Load Alleviator guides the cables coming from the aircraft to the telescope - it takes up the weight of the cables when the telescope is rotating. The SOFIA TA Technology and Operations Archive Ma...
4300 Balancing Subassembly(Deutsches SOFIA Institut, University of Stuttgart)
May 27, 2026
This dataverse contains the configuration controlled documentation for the SOFIA Telescope Assembly subsystem 4300 Balancing Subassembly (BS): Due to the difference in Science Instruments the Telescope has to be balanced in three axis according to every new configuration. Comprises coarse-plates and fine balancing system. The SOFIA TA Technology an...
4200 Pressure Window Subassembly(Deutsches SOFIA Institut, University of Stuttgart)
May 27, 2026
This dataverse contains the configuration controlled documentation for the SOFIA Telescope Assembly subsystem 4200 Pressure Window Subassembly (PWS): The Pressure Window provides pressure isolation when desired. 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 Hardw...
4100 Instrument Flange(Deutsches SOFIA Institut, University of Stuttgart)
May 27, 2026
This dataverse contains the configuration controlled documentation for the SOFIA Telescope Assembly subsystem 4100 Instrument Flange (INF): The Instrument Flange Vessel. 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 INF com...
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