Fortress HUMS

  • Downloads


  • ED-112A compliant crash protected recorder
  • Sophisticated HUMS capability using Smart sensors
  • Low weight, size and cost
  • Lowers box count by one vs. traditional system
  • Distributed, scalable and composable architecture
  • Serial bus network reduces system weight and installation time/complexity
  • Commodity and logistics benefits
  • Improves fleet operational readiness


  • Health and Usage Monitoring Programs
  • Rotor smoothing, drivetrain, engine and structural health monitoring
Fortress Data Acquisition Flight Recorder (DAFR) Next Generation Voice and Flight Data Recorder

Fortress Data Acquisition Flight Recorder (DAFR) Next Generation Voice and Flight Data Recorder

Curtiss-Wright has been manufacturing crash protected recorders since 1957, was the first to bring a combined cockpit voice/flight data recorder (CVR/FDR) to market in 1986 and the first to obtain...

MPFR Multi Purpose Flight Recorder

MPFR Multi Purpose Flight Recorder

Curtiss-Wright has developed the most versatile recorder available, in the most compact package, fully approved for current and anticipated requirements. On-aircraft download is achieved in less...

CAMHD-C - High Definition Internal Avionics Camera

High Definition Internal Avionics Camera

The CAMHD-C cockpit area camera is a high definition (HD) color camera designed to support image capture within the aircraft cabin. Housed in a robust aluminium fairing the CAMHD-C camera is...

PGS Replay and Analysis Software

PGS Replay and Analysis Software

Effective Flight Operations and Quality Assurance (FOQA) programs are hard to implement. There is seldom a shortage of flight data but useful interpretation requires superior analysis and viewing...


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The Fortress Health Usage Monitoring (HUMS) combines an ED-112A qualified crash recorder with in-built HUMS hardware. This innovative solution is possible as the Fortress range of recorders can support custom modules to add additional data acquisition and processing capabilities. Fortress HUMS provides all the benefits of having a flight data/cockpit voice recorder and a fully functioning HUMS without requiring two separate boxes. By combining the systems, weight can drop significantly versus currently available systems (up to 50 lb (22 kg) possible). At the same time, commonality reduces the space and power required.

A benefit of most HUMS, in addition to increasing safety and facilitating training, is reducing costs. In combination with prognostic algorithms, one can calculate the remaining useful life of components which can extend maintenance periods beyond conservative schedules. As an example, the repair costs of an oil cooler system can drop from > $300,000 to < $40,000 with the addition of a HUMS.

Working with partners, we can provide a joint product solution to meet differing program needs. The Fortress HUMS can be designed to perform the majority of the required data reduction so that, at download and pilot debrief, appropriate data is available to quickly make decisions about the status of the aircraft. As the HUMS system is essentially separate within the same enclosure, the HUMS data is typically stored external to the recorder to a removable media, while mandatory FDR data is stored in Crash Protected memory.

A fail-safe file system can be used to ensure the Fortress HUMS is able to segregate functionality by report type, such as mission data/exceedances, mechanical diagnostics, aircraft state/regime, rotor track and balance data, engine performance data, and raw data files. Open, easily man readable data collection protocols are used and data security is provided with physically removable storage media and supporting global, security supervised, user access to optimize fleet wide maintenance, repair, and overhaul operations.

For example, we recently worked with Ultra Electronics to develop a module to serve an aircraft fleet that utilizes a network of smart sensors. This system gathers vibration data for mechanical diagnostics and rotor track and balance, analog and digital signals, ARINC 429, MIL-STD-1553B for flight data recording and/or exceedance monitoring and regime recognition. The acquisition card also supports FDR mandatory parameter acquisition to feed the FDR thus excluding the need for an additional / separate DAU. Data can be uploaded to the cloud where analytics are performed and results can be downloaded.

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