The Honeywell Military Flight Management System (FMS) is a complete solution to a complex set of today’s problems – It supports the mission requirements of flight crews while ensuring significant growth to meet the requirements of tomorrow.
Military missions require specialized functions not available in today’s commercial systems; Search and Rescue patterns, Military Refueling Patterns, CARP/HARP airdrops, and auto-tuning capabilities.
Honeywell’s Military FMS (MFMS) gives the military user the ability to operate within world-wide CNS/ATM airspace and provides the guidance, navigation, performance and data link capabilities essential to a successful mission.
Honeywell is the world leader in FMS. Our MFMS is currently fielded on the USAF C-5, and multiple international C-130 and P-3 platforms.
The MFMS solution is designed to maximize the service life of existing systems. The patented layered MFMS architecture can be quickly customized to interface to your existing equipment suite.
Our MFMS provides the means for the flight crew to enter a flight plan, select various flight control modes, and enter other necessary mission data. Flight progress is monitored through the system’s Multi-function Control Display Units (MCDUs) and the primary cockpit display systems.
The generated flight profile guides the crew from origin to destination and includes all military functions along the way. The system guidance can also include signals that are sent to the aircraft’s autopilot and auto throttle systems.
The MFMS can also provide the control and management of other on-board systems including:
- Navigation Sensor
- Radio Navigation Management
- Mission equipment
Interfaces to both military and commercial equipment are supported.
The MFMS is designed to operate in either the military battlefield environment or the benign lab simulation environment. It complies with both the requirements of DO-178B and ARINC – 610.
There are multiple methods for creating a flight plan within the Military FMS. The flight plan may either be created or recalled via the MCDU keypad, a pre-existing flight plan may be created remotely and loaded into the system via a data loader, or a flight plan may be uplinked via data link communications. The navigation data based used in the MFMS flight planning is compatible with the government DAFIF.
The MFMS planning functionality is scalable to fit each customer’s unique requirements. It allows them to designate the number of custom waypoints, number of waypoints in a route, number of stored routes, number of stored route waypoints, number of mark-points, number of temporary waypoints, as well as the number of each type of pattern that will be required for their system. It also includes the ability to insert special military flight routes for:
- Search and Rescue Patterns
- Refueling Patterns
- Airdrop Patterns
The navigation function of the FMS provides the capability to initialize the navigation system, enter data, compute current position, provide radio NAVAID selection, and provide an accuracy level assessment of the current aircraft position. The navigation radios are automatically tuned by the FMS.
The MFMS generates the best estimate of the aircraft position based on the on-board navigation suite and the NAVAIDs available. The on-board database is used to track and tune the nearby VOR/DME and TACAN receivers. The class and figure of merit of the available NAVAIDs is constantly monitored and provides the Actual Navigation Performance (ANP), verifying Required Navigation Performance (RNP) is met or exceeded.
The FMS provides a four-dimensional guidance solution: two-dimensional lateral, vertical, and time. Like the rest of the FMS, the guidance function can be customized to meet your needs. It provides commands for controlling aircraft roll, pitch, speed, and engine thrust. Lateral and vertical guidance modes may be coupled to a flight director and/or autopilot and auto throttle. Constraints may be inserted along the flight plan route, allowing path and performance guidance to the three-dimensional profile when lateral and vertical guidance are flown together.
The lateral guidance function compares the aircraft’s actual position with the desired flight path and generates steering commands to the autopilot and/or flight director. Direct guidance is also available from the aircraft’s present position to any waypoint.
The Honeywell MFMS provides vertical guidance during of the all segments of the flight plan; commercial and military. It provides guidance to meet speed/altitude and time constraints, as well as the entered cruise altitude or vertical profile.
The required time at arrival function (RTA) provides the calculated times of arrival at various waypoints along the flight plan. The crew may select an RTA at a waypoint and the FMS will generate the appropriate commands to achieve that time on station.
The performance function optimizes the aircraft’s vertical profile integrated with the lateral profile. The performance function within the FMS determines flight plan predictions, climb and descent speeds, and top-of-climb and top-of-descent locations within the flight plan. The performance predictions are periodically updated in order to incorporate aircraft performance and ground speed.
Platforms & Applications
- Royal Australian Air Force AP-3C Orion
- Alenia C-27J Spartan
- Lockheed Martin C-130J Super Hercules
- USAF C-5 (AMP and RERP)
- Belgian Defence C-130H
- Royal New Zealand Air Force C-130H