What is load capacity of Yaesu G-5500VDC antenna rotator?

The Yaesu G-5500DC doesn’t have a single simple “load capacity” like a crane or mount — Yaesu specifies it using several related limits. The key figures are:

✅ Primary load capacity

  • Maximum vertical load (mast load):
    200 kg (≈440 lb)

This is the main “headline” load rating.


⚠️ But this is NOT the whole story

For rotators, the real limit depends heavily on antenna geometry and wind loading:

  • Wind surface area limit:
    1.0 m²
  • Torque limits:
    • Elevation: 12 kg·m (≈88 ft-lb)
    • Azimuth: 6 kg·m (≈44 ft-lb)
  • Braking torque (holding strength):
    40 kg·m (≈289 ft-lb) on both axes
  • K-factor (Yaesu sizing metric):
    ~578 ft-lb for the G-5500 class

🧠 Practical interpretation (important)

The 200 kg figure is only the vertical static load on the mast. In real use:

  • long-boom Yagi can exceed limits even if it weighs far less than 200 kg
  • compact dish or small crossed Yagis may be fine near the limit
  • Wind loading is usually the dominant constraint, not weight

Yaesu explicitly notes that antenna size, balance, and wind exposure determine the true safe load, not just mass


👍 Typical safe use cases

  • 2 m / 70 cm crossed Yagis (moderate boom length)
  • Small satellite arrays
  • Light dishes close to the mast

⚠️ Marginal / risky

  • Long-boom HF Yagis
  • Large log-periodics
  • Anything with large wind area (>1 m²)

Bottom line

  • Absolute vertical load: ~200 kg
  • Real-world usable load: governed mainly by wind area + turning moment, not weight alone

By Admin

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