Integrated Truss Structure
part of the International Space Station; sequence of connected trusses
The Integrated Truss Structure (ITS) of the International Space Station (ISS) consists of a linear arranged sequence of connected trusses on which various unpressurized components are mounted such as logistics carriers, radiators, solar arrays, and other equipment. It supplies the ISS with a bus architecture. It is approximately 110 metres (360 feet) long, weighs slightly under 118 tonnes (260,000 lb) with all its attached equipment, and is made primarily from aluminium and stainless steel.
Truss components
All truss components were named after their planned end-positions: Z for zenith, S for starboard and P for port, with the number indicating the sequential position. The S0 truss might be considered a misnomer, as it is mounted centrally on the zenith position of Destiny and is neither starboard nor port side.
Manufacturing
ISS truss segments were fabricated by Boeing in its facilities at Huntington Beach, California (formerly McDonnell Douglas), Michoud Assembly Facility in New Orleans, Louisiana, Marshall Space Flight Center in Huntsville, Alabama, and in Tulsa, Oklahoma. The trusses were then transported or shipped to Kennedy Space Center's Space Station Processing Facility for final assembly and checkout.
The structural framework was made using several manufacturing processes, including the investment casting, steel hot rolling, friction-stir, and TIG welding processes.
Z1 truss
The first truss piece, the Z1 truss, launched aboard STS-92 in October 2000. It contains the control moment gyroscope (CMG) assemblies, electrical wiring, communications equipment, and two plasma contactors designed to neutralize the static electrical charge of the space station.
This brief starts where responsible research should: with the source description of “Integrated Truss Structure” as part of the International Space Station; sequence of connected trusses. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as part of the International Space Station; sequence of connected trusses. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Aug 11, 2026. The linked authority identifier is Q610615. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2000.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
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Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Integrated Truss Structure”, its source revision and the description used here.
- Expand the search: follow Integrated Truss Structure primary sources, Integrated Truss Structure archive and Integrated research across catalogues and specialist indexes.
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Questions for further research
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This entry incorporates text from “Integrated Truss Structure” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.