j2 Aircraft Dynamics Ltd is a UK SME, based in the North West of England, that was first established in 2006 with an initial development fund investment. This was successfully used to complete the initial development of an innovative aviation concurrent analysis and design ‘Tool-Kit’ for aircraft design. This ‘new’ capability was initially demonstrated through the Universal Tool-Kit being used to develop the configuration of the Piper Jet.
The Company launched commercially in Dec 2009 and has operated successfully since then, firstly in the fixed wing Aircraft Design and Development world but also then developing and commercialising its analytical engine capabilities into both fixed and rotary wing client led applications in Flight Simulation, Flight Test, Air Accident Investigation, and PAV/eVTOL design and development, these being the Company’s five main commercial areas of application.
J2 has a successful track record in working directly with large and small organisations, globally, to generate commercial success and is experienced in working on US Military Projects under ITAR Licenses. J2 work with tier one companies across the globe including Europe, India, Brazil, China, USA, and the Middle East.
The Company is based at SciTech, Innovation Centre in Daresbury, near Warrington, this being one of the UK Governments regional technical and innovation hubs.
Flight Test and Aircraft Certification
Flight Data Matching
Air Accident Investigations
J2 universal toolkit
The j2 Universal Tool-Kit is a complete flight physics modelling, analysis and simulation suite of software tools. The Tool-Kit is built on a plug-in architecture connected with a centralised database. End users only need add the components necessary for the team you have and the task you need to perform. The j2 Universal Tool-Kit is revolutionary in focussing on the use of data rather than the writing of code and building complicated block diagrams. The removal of code writing tasks means you can not only get to the answers quicker but this also provides for a robust and repeatable methodology that can be trusted and less prone to error and that has a direct impact on cost reduction. Models of Aircraft can be built from any data source and can even start with no data and progressed through to a full Digital Twin. Where knowledge already exists in code and systems, the j2 Universal Tool-Kit allows users to integrate legacy code and models they trust into a robust and future proofed set of software tools.
The j2 Universal Tool-Kit provides various analytical components to investigate handling qualities, performance or examine time histories within a single Tool-Kit, even perform complete flight test data analysis and flight matching. No need to export data for viewing results, Charting and Templates provide quick data viewing techniques and users can even view the aircraft response in an interactive 3-D video playback. Take the models at any time and fly them on a simulator to get early stage pilot opinions on the real response of the aircraft. The j2 software runs on a Windows Operating System and uses a MS-SQL Database. This database provides all the cross referencing and version control of all data to ensure that everything is tracked throughout the aircraft model development process.
j2 Universal Framework
j2 Universal Tool-Kit’s underlying framework and data management system, j2 Universal handles all the configuration control and plug-in management and provides a data centric approach to aircraft design and analysis. Units can be changed for data entry and display whilst the j2 Universal Tool-Kit makes sure everything is consistent. Track all results back to their source and see the change history with the integrated version control.Read More
Using your key specifications as its starting point – aerodynamics, component positions, weights and so on – j2 Builder quickly constructs a reliable aircraft model ready for assessment. The model is constructed in a hierarchical structure to mimic the aircraft configuration and layout. Let j2 Builder handle moment arms and establish total mass, inertia and cg position.Read More
When starting with little or no data, how do you build a dynamic model? Introducing j2 Elements. Define the geometry and basic airfoil data then j2 Elements integrates it all into a complete aircraft model with the built in Aerodynamic Strip Theory to calculate total coefficients and derivatives automatically.Read More
With the j2 Universal Tool-Kit there’s no need to discard the data models you already use to calculate aerodynamics, mass, inertia and thrust characteristics. j2 Developer provides an Application Interface (API) to enable you to integrate old and new to find the perfect solution and optimise return on investment. Add external calculation engines directly into your model.Read More
The j2 Universal Tool-Kit provides high fidelity rotary modelling capability through the j2 Rotary plug-in. The Blade Element Rotor Model (BERM) s accurately delivers hover, autorotation, ground effect efficiencies, and realistic translational lift ‘right out of the box’.Read More
j2 Freedom is the main analytical engine of the j2 Universal Tool-Kit. Initialise the aircraft in any flight conditions with the fully configurable rules based trimming. Run a full Virtual Wind Tunnel to evaluate the complete aircraft aerodynamics. Use j2 Freedom to create complete test and certification manoeuvres and find out if your aircraft can get certified even before first flight.Read More
The evaluation and analysis of an aircraft design occurs in many stages. Producing the basic classical stability criteria and modes of motion data forms part of the complete aircraft evaluation process. By using j2 Classical, a fully integrated component of the j2 Universal Tool-Kit, there is no need to go to any another application to start looking at Linear Analyses and developing algorithms to establish modes of motion.Read More
The j2 Flight Plug-In provides the ability to evaluate and analyse flight test data. Produce a complete set of Kinematically Consistent States with Flight Path Reconstruction, compare predicted and real response to manoeuvres with Reprediction and align the model to the real aircraft with Regression. j2 Flight can be used to support flight test and envelope expansion or speed up the development of a Level-D simulator model.Read More
j2 Matlab Toolbox
When working with Matlab/Simulink® two issues come to mind. First, how can you build aircraft models using different data sources and approaches, vary these models easily and evaluate the impacts of the variations? Second, every time you run a response you must first trim the aircraft and develop read/write routines to save and plot data. What if you could maintain the power of Matlab/Simulink® and overcome both of these issues? Welcome to the j2 Matlab Toolbox.Read More
Use the j2 Performance plug-in to identify key performance characteristics for your aircraft. The integrated search in can work through identifying Climb, Turn performance characteristics. Build Energy Manoeuvre and Doghouse plots to understand performance capabilities of any aircraft.Read More
Organisations with existing solutions that partly fulfil their design and engineering needs can still take advantage of the j2 Universal Tool-Kit’s unique design capabilities – without abandoning their own simulations. That’s where the j2 Active plug-in comes to the fore. Integrate the j2 model with external tools using the j2 Active plug-inRead More
See your aircraft in flight with j2 Virtual. This plug-in provides a unique interactive 3-D playback capability. j2 Virtual enhances the understanding of the data charts by putting the aircraft in a real world environment to show what the numbers mean. Compare multiple test points or different aircraft quickly and easily.Read More
j2 Visualize, the data display plug-in of the j2 Universal Tool-Kit, enables designers to create monitors, graphs and traces with which to view the data either as an analysis is underway or as a post processing tool. Templates speed up the process of chart generation allowing the user to configure everything necessary and then just add data when required.Read More
j2 Pilot | j2 Pilot SDK
Ever wanted to see an aircraft fly in real-time during the design phase? Using the j2 Pilot plug-in’s automatic interfaces/models you can fly aircraft on your j2 Universal Database in a simple desktop simulation at any stage in design. Compare designs to get a complete understanding of flying performance. You can also use j2 Pilot interfaces to merge the finished design into a Full Mission Simulator and integrate the model into pilot training simulators.Read More
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18 | October | 2023
J2 Complete Integration With CHARM From CDi to Support Growth in High Fidelity Model to Simulation of Helicopters, Helicopter Design and Modelling and Evaluation of Multirotor Aircraft in The Growing eVTOL market
J2 are pleased to announce that they have successfully developed and replaced the previous third party Blade Element Rotor Model (BERM) for high fidelity…Read More
21 | September | 2023
j2 Aircraft Dynamics Ltd previously announced the new v7 release of its Universal Tool-Kit and its impact on the growing eVTOL application areas.Read More