Bihrle Applied Research Inc  

Hampton,  VA 
United States
  • Booth: 2749

Physics-Based Aircraft Flight Model Development & Simulation Software Tools

Bihrle Applied Research Inc. (BAR) is an aeronautical research & development company specializing in the development of flight-representative software math models for commercial and military fixed-wing and rotary-wing aircraft, including full-envelope modeling and aircraft upset recovery modeling. BAR successfully incorporates such flight models into a wide range of customer applications, including engineering workstations, Full Flight Simulators, UAS crew training simulators, hardware-in-the-loop simulators and multi-vehicle networked simulations.

Brands: StallBox flight model upgrade solution for simulators, DSix flight simulation development software, CompARE QTG flight model evaluation software, and SimGen aero prediction software.


  • StallBox
    StallBox is an industry-proven hardware and software solution designed to provide airlines and training centers with the stall models and instructor displays necessary to conduct Upset Prevention and Recovery Training (UPRT)....

  • StallBox Fills the Gap - StallBox provides the ability to upgrade existing flight simulators with enhanced, aircraft type-representative stall models without the need for aircraft OEM data sets or modifications to the existing baseline flight model code. This is accomplished by hosting the enhanced stall model in an external host computer (the StallBox) which requires only a lightweight code component to establish a communication link between the simulator host and StallBox.

    How StallBox Works - StallBox integrates with existing flight simulators and is responsible for data monitoring, model implementation, model blending and data augmentation. In addition, StallBox communicates with wired or wireless instructor displays. This capability provides for incorporation of the FAA-recommended instructor displays and can be accomplished by modifying an existing IOS, integrating a wired desktop display, or incorporating a wireless tablet computer that communicates with the StallBox.

    Key Features:

    • Representative stall model
    • No OEM data required
    • Meets ICAO and FAA recommendations
    • Optional UPRT instructor displays
    • Does not impact existing simulator certification
  • DSix Flight Simulation Software
    DSix is Windows-based commercial software that facilitates the development and deployment of fixed-wing and rotary-wing aircraft flight models for use in simulation applications....

  • One Product, Many Applications - Rather than building from legacy simulation paradigms, BAR has developed a reconfigurable simulation environment designed to support diverse simulation applications as requirements expand. With the flexibility afforded through object-oriented design, standard plug-in interfaces, computational resources, and supporting tools and interfaces, DSix provides the development environment for the most demanding flight simulation applications - including desktop development and analysis, full Operational Flight Trainer (OFT) flight model host, hardware-in-the-loop simulation, and high-performance networked multi-vehicle applications.

    Supports All Aircraft Types and Data Sources - Whether modeling a fixed-wing aircraft, rotary-wing aircraft, V/STOL aircraft, or UAV, DSix provides the single simulation infrastructure for all aircraft types and configura­tions. With DSix, there are no rigid model structure requirements, thereby providing you with total control over your flight model definition.
  • F-16 Flight Model
    A six degree-of-freedom (6DOF) physics-based simulation of the F-16, this flight model includes full-envelope aerodynamics & propulsion modeling, comprehensive failure modeling, dynamic weight & balance modeling, and superb ground reaction modeling....

  • A comprehensive, full-envelope flight model suitable for full mission simulation trainers - The aerodynamics model of the F-16 was developed by Bihrle using wind tunnel data (collected over more than two decades) and is a comprehensive, 6DOF, non-linear representation of the aircraft’s aerodynamics. It includes effects of angle-of-attack, Mach, sideslip, angular rates, individual control surfaces, stores, and landing gear, as well as flexibility effects. The aerodynamics model is physics-based and covers the entire flight envelope of the F-16 including stall, post-stall, and deep stall conditions, thereby providing customers with unique training capabilities.

    Modular Architecture - The modular design of Bihrle’s F-16 flight model allows for practical trainer life cycle support. Each significant component of the flight model was developed as an independent object that can be modified and tested individually or as part of the total simulation. This approach allows Bihrle to provide source code to customers when possible, compiled objects when needed, or a combination of both, depending on US State Department regulations and flight model license terms.
  • CompARE
    A full-featured software toolset for conducting simulation evaluation, acceptance & recertification, CompARE offers rapid, multi-user test generation using mature, optimized components to provide a powerful scripting, plotting & reporting environment....

  • Overview - CompARE was designed to conform with ARINC Report 436, “Guildelines for Electronic Qualification Test Guide”. With CompARE’s development environment, a user creates tests in the project hierarchy. These tests can be grouped and categorized to facilitate the organization of hundreds of tests. The test is built using scripts, functions and reference data loaded into the project repository. The scripts and functions included in a test interface with the simulation software and hardware to get/set/record data while interpolating and retrieving test parameters from the included reference data set. Upon completion of the test(s), the data is stored in a complete project-independent form, thereby allowing the user to post-process the run into onscreen plots or PDF reports.

    Common CompARE Applications:

    • Conduct simulation unit testing during development
    • Conduct FAA/ICAO Automated Qualification Test Guide (QTG)
    • Run customer approved Acceptance Test Procedures (ATP) on software and hardware.

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