BADA (Base of Aircraft DAta) is an Aircraft Performance Model (APM) with corresponding database. BADA is being maintained and developed by the EUROCONTROL Validation Infrastructure Centre of Expertise located at EUROCONTROL Experimental Centre (EEC) in Brétigny-sur-Orge, France.

The following BADA document describes the main features of the BADA Product in detail:
  HTML BADA Product Management document
The main application of BADA is trajectory simulation and prediction within the domain of ATM (Air Traffic Management).

BADA revisions are scheduled annually. Its current version (BADA 3.9) provides a set of ASCII files containing performance and operating procedure data for 338 different aircraft types.

For 117 of these aircraft types this data has been developed using reference sources such as Flight Manuals, Operating Manuals etc. These are the so-called directly supported aircraft. For the other 221 types, the data is specified to be the same as one of the 117 directly supported aircraft.

Further details on the above are provided in the BADA Development document:
  HTML BADA Development document

The Aircraft Model behind BADA

The model that is used is a so-called Total Energy Model or TEM. It can be considered as being a reduced point-mass model. TEM equates the rate of work done by forces acting on the aircraft to the rate of increase in potential and kinetic energy. The Operations Performance Model of BADA defines, besides TEM: the aircraft type, mass, flight envelope, aerodynamics, engine thrust and fuel consumption. The Airline Procedure Model defines the speeds that are to be used during the climb, cruise and descent flight phases. All of this is explained in detail in the BADA User Manual (available from the documents section).

Access to BADA

The use of BADA is regulated through the license agreement which stipulates terms and conditions of use based on the contractual constraints EUROCONTROL is committed to with its data source providers.

The BADA database can be used by anyone in the EUROCONTROL organisation and can be obtained by contacting the BADA Support (below).

Access to the data files is given to a number of ATC/research organisations in Europe and worldwide to commercial organisations working on projects supported by, or related to, the European Union. The use of BADA is free of charge but limited to the kind of work/projects mentioned above. It may not be used for commercial purposes.

If you feel that your organisation could use BADA and you would like to get access to the files, you may wish to obtain a BADA user license. To do so, please review the user agreement terms and conditions "License Agreement for the EUROCONTROL Base of Aircraft Data". It is necessary that you include a detailed description of your needs for BADA. Your request will not be considered unless an accurate description of your needs is provided.
  HTML BADA Licence agreement

BADA Support

The BSA is a principal communication media between the BADA licensed users and the BADA team at EUROCONTROL. The BSA is a web-based application developed with the BMC/ Remedy Action Request System ©.

The BSA can be directly accessed with the following link:
More details on how to use the BSA are provided in the User Guide.
  Acrobat BADA Support Application User Guide
Should you have any problems to report or would like to make suggestions for BADA improvements; you can use the BADA Support Application (BSA) or send an e-mail to the BADA Support team.

BADA Support Team

The BADA Support Team can be contacted via e-mail at:
Phone :  00-33-(0)1 69 88 76 15

BADA Release Content

BADA Release Documents

  • User Manual for BADA
  • Revision Summary Document for BADA
  • Aircraft Performance Summary Tables for BADA
  • Synonym Aircraft Report for BADA
  • Model Accuracy Summary Report for BADA

Other BADA documents

  • BADA Development Manual
  • BADA Aircraft Modelling Reports (EEC document, restricted distribution)
  • Coverage of European Air Traffic for BADA

BADA Documents

The following documents related to BADA are available to everyone and can be downloaded directly...
  HTML BADA documents
  HTML BADA publications

BADA Release Data Files

Three different files are available for each directly supported aircraft in BADA:
  Text OPF File This file holds all the thrust, drag and fuel coefficients to be used in TEM together with information on weights, speeds, maximum altitude, etc.

  Text APF File This file defines a default operational climb, cruise and descent speed schedule that is likely to be used by an airline.

  Text PTF File This file presents the nominal performance of the aircraft model in the form of a look-up table. It gives the user direct access to average performance data without the necessity to implement the complete TEM.

  Text SYNONYM.NEW This files holds the list of all aircraft types (synonym and directly supported models) which are supported by the BADA revision.
Within the scope of the BADA, several documents and data sets are developed and maintained to provide a description on BADA development, validation, accuracy, scope of use, coverage of European traffic, as well as information on change and configuration management.

BADA Support Tools

The BADA support tools have been developed in order to facilitate the implementation, validation and use of the BADA. They comprise the BADA Calculation Tool and the Radar Data Analysis and Processing (RDAP) tool.

BADA Calculation Tool

The BADA Calculation Tool is a web based application with access provided to the Users. The primary function of the BADA Calculation Tool is called Aircraft Performance Calculation (APC) session which allows the calculation of aircraft performances based on the BADA for all flight phases (including flight envelope) under various conditions. The input parameters are chosen by the user. The calculation results are made available to the users in two ways: displayed on the screen and provided in text file which can be downloaded for further use. In addition to the APC function, there are other functionalities such as:
  • speed conversions;
  • transition altitude calculation between redefined CAS and Mach;
  • atmospheric conditions.
The tool also provides a “synonym search” function to assist the user to identify an aircraft model in BADA which meets the User selected criteria in terms of aircraft performance characteristics.

Access to the BADA Calculation Tool

The application is readily available and accessible within EUROCONTROL intranet for internal EUROCONTROL users. It can however be provided provided to licensed BADA external users following request in the licence agreement form.
  HTML BADA Calculation Tool

Radar data analysis and processing tool (RDAP)

The RDAP tool is used for the import, storage, processing and analysis of radar tracks with corresponding flight plan and meteorological (MET) data.

The tool provides means to:
  • perform studies on aircraft operations factors such as airline specific procedures, ATC constraints and procedures, etc.;
  • verify conformance of BADA with real aircraft performances;
  • use real data for aircraft performance modelling or synonym aircraft identification should no other reference data be available;
  • support development and validation of new modelling algorithms.
Access to the RDAP application is readily available and can be provided to licensed BADA external users following request made to BADA Support.
Last validation: 02/05/2011