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Longbow Satellite Platform

Compiled from public sources on 2026-05-25. Not independently verified by Loft Orbital.

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Missions → DESIR (Planned) , Helsing EU Sovereign Constellation (Planned) , YAM-3 (Operational) , YAM-5 (Operational) , YAM-6 (Operational)

Loft Orbital's standardised LEO satellite bus derived from the OneWeb constellation architecture, used across the YAM demonstration series and as the platform for the DESIR programme. Bus-agnostic Hub payload adapter attaches to Longbow, enabling payload-agnostic hosted-payload missions.

Longbow is Loft Orbital's standardized LEO satellite platform used with Loft's Hub payload adapter and Cockpit mission-control software.^[1]^[2] Longbow is based on the Airbus Arrow bus platform and benefits from a platform with over 600 copies in orbit.^[2]^[1] Hub is a universal payload adapter that decouples payloads from satellite buses and supports standardized power, compute, communications, command, and control interfaces.^[1]^[3] Loft owns and controls the YAM satellite, regulates payload power, and can accept or reject customer tasking requests.^[3] YAM-8 is the first Longbow mission, and Longbow enables larger payloads and more bandwidth- or compute-intensive missions than earlier Loft platforms.^[2]

Operator pricing

Pricing not publicly listed by operator

Supply chain position

platform for DESIR

platform for Helsing EU Sovereign Constellation

platform for YAM-3

platform for YAM-5

platform for YAM-6

Sources

[1]Loft Orbital, Physical Missions platform pageoperator marketing-2026-05-25
[2]Loft Orbital, YAM-8 entering the Longbow eraoperator press2025-03-012026-05-25
[3]Loft Orbital YAM-3 FCC application narrativelegal text-2026-05-25
[4]EO-Atlas current D1 row for longbow-bussw measurement-2026-05-25

Cite https://eo-atlas.org/products/bus/longbow-bus Markdown twin → Field definitions → Suggest a correction →

How to cite this page

Plain text

Longbow Satellite Platform. EO-Atlas, SpectraWorks B.V., last reviewed 2026-05-25. https://eo-atlas.org/products/bus/longbow-bus (CC BY 4.0)

BibTeX

@misc{eoatlas:products:bus:longbow-bus,
  title = {Longbow Satellite Platform},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  year = {2026},
  note = {Last reviewed 2026-05-25. CC BY 4.0},
  url = {https://eo-atlas.org/products/bus/longbow-bus}
}