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ClearVision™ i-FMS


Avionics. Simplified.

Featuring a software-based, flexible open-architecture system, the Interactive Flight Management System (i-FMS) can run on a variety of hardware options – from OEM supplied platforms, to commercial or paramilitary versions.

Portable FMS

The i-FMS features a portable FMS with highly modular architecture for ready deployment to any ARINC 653 compliant platform and a separate Human-Machine Interface (HMI). Customers may run the application in many third-party options to best suit their flight deck, with no need for specific hardware or Line Replaceable Units (LRU).

Human-Machine Interface (HMI)

The HMI, implemented with an ARINC 661 User Application, connects to the core operating system and allows the pilot to communicate with the application. With UA’s state-of-the-art touch-based HMI, customers can customize their own flight deck with the hosted FMS software. Since the system is modular, customers may specify future functionalities, allowing for easy adaptation to address upcoming requirements. Support for a third-party HMI is also offered. Additionally, customers may integrate their proprietary functions by interfacing to the core operating system or by customizing menus and operational logic.

The Future of Flying

Designed to support the potential for augmented reality capabilities, the i-FMS is the future of flying. The i-FMS tackles one of the main challenges pilots face today with FMS operations; the need to propose changes to the FMS during critical phases of flight such as takeoff and landing.

Typically, during this time the pilot is required to shift their attention from outside the cockpit window to the FMS display unit – to reprogram the FMS and validate changes are correct – requiring last-minute updates and head-down operations. The i-FMS better supports this, allowing the pilot to project waypoints and information from the FMS onto the real-world, superimposed on a Head-Up Display (HUD), UA’s SkyLens™ Head-Wearable Display (HWD) or SkyVis™ Helmet-Mounted Display (HMD). The pilot is able to interact with these features by Line-of-Sight (head/eye tracking) and a select/deselect button on the aircraft throttle, minimizing head-down operations.

With the i-FMS's more streamlined working environment; performance, safety, and efficiency are all enhanced, improving the overall pilot experience. In addition, the i-FMS provides a platform for NextGen and SESAR capabilities and mandates such as FANS 1/A+, CPDLC, and ATN B1/B2. Support of low RNP (<0.3), A-RNP, and RNP-AR operations are also afforded.

  • Features
  • Benefits
  • Specifications
  • Advanced API support for external system integration
  • Wireless interface for integration with tablet-based flight planning applications and maintenance functions
  • Extended innovative algorithms for superior navigation performance
  • Two alternate routes in addition to active flight plan
  • 250 Waypoint flight plans to support the most complicated clearances
  • Support of special mission operations, Search and Rescue (SAR) patterns, Transition to Hover, and rig approaches
  • Advanced performance (V-Speeds, N1 targets, required field length)
  • Simplified installation, integration, and upgrade capabilities
  • Reduced weight, wiring, and power requirements
  • Fuel savings
  • Increased reliability
  • Lower installation and maintenance costs
  • Pilot-centric navigation

System Architecture

The i-FMS architecture complies with ARINC Specification 653, Avionics Application Software Standard Interface, for Integrated Modular Avionics (IMA). Communication with external devices is accomplished via host hardware.


The i-FMS supports the following installation options:

  • Single FMS / Single Control Display Unit (CDU)
  • Multiple FMS / Single CDU
  • Multiple FMS / Dual CDU
  • Multiple FMS / Triple CDU


The i-FMS supports commercial or government (DAFIF) databases.


The i-FMS provides electronic cyber security protection against access by unauthorized sources internal and external to the aircraft.


The i-FMS’s ARINC 653 software is developed to RTCA DO-178C, Software Considerations in Airborne Systems and Equipment Certification, and RTCA DO 200B, Standards for Processing Aeronautical Data.
  • TSO C-115d, Required Navigation Performance equipment using Multi-Sensor inputs
  • TSO C-146e, Stand-alone airborne navigation equipment using the Global Positioning System augmented by the Satellite Based Augmentation System (SBAS)
  • RTCA/DO-178C, Software Considerations in Airborne Systems and Equipment Certification (Design Assurance Level B)