Standard MMC-TB pylon supplemented by three or four guy wires from upper pylon points (typically 70% of pylon height) to ground anchors at approximately 50m radius. The guys transfer 60–80% of the lateral conductor load directly to ground, reducing base bending moment proportionally and dropping the required tubular tension to approximately 40% of the bare-pylon equivalent. Mature engineering — guyed-mast architecture has been used for radio towers up to 600m+ for 70+ years.
| Configuration | Standard MMC-TB pylon plus three or four guy wires to ground anchors |
| Pylon | Identical to MMC-TB — same 4m base, same 20" tubular, same ATS caisson |
| Guy wires | 3 (or 4) — typically anchored at 70% of pylon height |
| Guy anchor radius | ~50m from pylon base |
| Lateral load transfer to guys | 60–80% of conductor lateral load (depends on conductor configuration and wind) |
| Base bending moment reduction | ~70% (per worked example) |
| Tubular PT reduction vs bare MMC-TB | ~60% — drops to approximately 40% of bare-pylon required PT |
| Voltage range extension | Extends single-pylon range to ±500kV HVDC strain (would otherwise require MMC-TA dual-tower portal) |
| Worked example — ±500kV HVDC strain | Bare MMC-TB required PT: ~28 MN (above ceiling) → with three 70%-height guys at 50m radius: ~11 MN (within standard 20" tubular at 67% utilisation) |
| Easement requirement | 50m point-source easement extension at the tower location only (not corridor-wide) |
| Suitability | Remote and unconstrained corridor segments — outback Australia (corridors #1, #4, #5, #6), mining areas, agricultural areas, defence infrastructure |
MMC-TB Guyed — single-leg pylon with guy wires render
SketchUp render / technical drawing — placeholder for production artwork. Replace with actual asset when available.MMC-TB Guyed is the same standard production unit as MMC-TB, supplemented by guy wires for higher-load applications. The pylon, the foundation, the tubular, and the manufacturing process are all identical to MMC-TB — only the guy wires, anchors, and a 50m point-source easement are added.
The guy-wire architecture extends the single-pylon range substantially without requiring any new manufacturing capability. Where MMC-TB hits its tubular tension ceiling (around ±500kV AC strain or ±500kV HVDC strain at 28 MN required PT), MMC-TB Guyed drops the required PT to ~11 MN — well within the standard 20" L80 13Cr tubular. The trade-off is a 50m easement extension at the tower location — point-source, not corridor-wide. In remote and unconstrained terrain (outback Australia, mining areas, defence infrastructure) where easement width is unconstrained, MMC-TB Guyed is the lowest-cost option for high-strain applications.
MMC-TB Guyed is deployed in remote backbone segments where easement permits and load demands single-pylon-plus-guys rather than dual-tower portal. The continental backbone through outback Australia (SBC #1 Brisbane–Perth, SBC #4 Mackay–Port Hedland, SBC #5 Derby–Esperance, SBC #6 Albany–Port Douglas) is the primary MMC-TB Guyed deployment region. Mining infrastructure connections and remote defence sites also use MMC-TB Guyed.
MMC-TB Guyed is deployed alongside MMC-TB and MMC-TA across the SBC continental transmission network. Specific deployment locations are determined per-corridor at detailed design.
The engineering of MMC-TB Guyed is documented in the MMC engineering memo series. The Models page is the catalogue — the Library is the engineering depth.
MMC-TB Guyed is covered by the same patent family as MMC-TB — Pole and Tower Architecture (Patent 6), Foundation Core (Patent 1), Integrated Foundation (Patent 2), Foundation Drilling System (Patent 3), Architectural Framework (Patent 4), and the Manufacturing Architecture (Patent 7). The guy-wire system itself is mature engineering practice (70+ years of guyed mast deployment for radio and TV towers) and is not separately claimed — MMC-TB Guyed is MMC-TB with guys added.