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J2 Freedom

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J2 Freedom

The J2 Freedom plug-in provides flight dynamics simulation of aircraft data models, allowing you to evaluate the complete flight envelope and enables users to create trim and response scenarios and use these models together with previously created aircraft to perform static and dynamic analyzes.

When static and dynamic analysis takes place early in the development life cycle, potential problems can be discovered quickly, before valuable time and money has been wasted on an inefficient or faulty concept.

Universal flight dynamic modeling capabilities come as standard for designers using J2 Freedom so an unlimited number of flights and maneuvers can therefore be predicted and evaluated.

J2 Freedom Key Features:

  1. Universal Flight Dynamic Modeling
    • Evaluate the complete flight envelope and beyond.
    • Investigate areas that can only usually be explored during a flight test.
  2. Use the System throughout the Design Process
    • Re-run existing trims and responses when the aircraft is updated.
  3. See any Problem Areas as the Analysis Takes Place
    • Evaluate the design at any stage to capture problems early.
  4. Easy-to-use Graphical Interface
    • Analysis models can be created quickly and easily to cover the complete flight envelope.
    • There’s no need to use extensive text files. Single cases or complete flight envelopes can be assessed at the click of a single button.
  5. Trim Models are Constructed from a Series of Rules
    • Investigate the aircraft in any configuration and flight condition: Longitudinal, Lateral and Asymmetric.
    • Configure the system to match your aircraft’s structure and account for specific scenarios.
  6. Ranges can be Applied to Rules to Create Envelopes
    • Rapidly construct multiple flight conditions and quickly evaluate the aircraft across the whole flight envelope.
    • Multiple envelopes can be combined into a single trim model to add further refinement to focus on specific regions.
  7. Root Solving to Assess Non Linear Trims
    • Trim the aircraft at any point in the flight envelope to build a complete picture of airspeed altitude capabilities, stall speeds and lift/drag curves.
  8. Define Response Inputs as Points or Equations
    • Create simple maneuvers quickly and easily and start analyzing the design straight away.
    • Design complex inputs through equations and model pilot intervention as a function of conditions based upon aircraft states to assess flight more accurately.
    • Advanced analysis using flight test data as response input to compare results to flight test data for refining models.
  9. User Defined Analysis Time
    • Improved computing efficiency can be achieved as the user optimizes the data rate to suit aircraft and maneuvers combination.
  10. Apply a Maneuvers to a Complete Trim Model
    • Reduce analysis timescales by creating results for multiple flight conditions with a single mouse click.
  11. Configuration Control Aircraft, Trim and Response Models
    • Minimize mistakes by ensuring that all analyzes performed use the most recent analysis.
    • Quickly compare results from previous cases for aircraft optimization.

Pricing & Evaluation

DARcorporation is only authorized to distribute the J2 Universal software in the U.S. For inquiries outside the U.S., please contact J2 Aircraft Dynamics.

J2 Software Pricing & Evaluation (U.S. only)


Software Brochures (pdf)