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M111A1 Improved Positioning & Azimuth Determining System - GPS (IPADS-G)

Accurate Position and Azimuth Control for Fire Support Assets

M111

General Information

  • Self-contained, inertial navigation and surveying system that provides accurate position data in meters, azimuth reference in mils, and is capable of rapid and accurate self-alignment by gyrocompass techniques
  • Determines true or grid azimuth lines for weapon orientation and target acquisition
  • GPS enhances the system by providing GPS aided functionality and on-the-move update and initialization capability

Specs

  • Weight: 135 pounds
  • Accuracy:
    • Horizontal: 4.0 meters CEP
    • Vertical: 2.0 meters PE
    • Azimuth 0.4 mils PE

FMS/International Partners (for IPADS)

  • Saudi Arabia
  • Jordan
  • Iraq

History

  • The original system, Position and Azimuth Determining Systems (PADS), was fielded in the early 1980’s
  • The next generation Improved Positioning & Azimuth Determining System (IPADS) was fielded in 2006 and increased the accuracy and capability of the aging PADS
  • IPADS-G further added GPS capability and was field in 2012

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