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FAARFIELD
FAARFFIELD
1.300 replaces the previous version that accompanied Draft AC
150/5320-6E.About: FAARFIELD (FAA Rigid and Flexible Iterative Elastic Layered Design) is a new FAA thickness design program that incorporates 3D finite element structural response computation for rigid pavements and rigid overlays, and layered elastic analysis for flexible pavements and overlays. FAARFIELD is not a current standard FAA design procedure. FAARFIELD intended to accompany AC 150/5320-6E, which is planned for release in early 2008. For performing pavement thickness designs in conformance with FAA standards currently in effect, please download LEDFAA.
Notes: FAARFIELD is a departure from previous thickness design software in that it incorporates full 3D finite element responses to aircraft loads (for new rigid pavements and rigid overlays). The 3D finite element models used for rigid pavement designs are computationally intensive and may result in long run times, depending on the computer characteristics.
FAARFIELD makes use of the 3D finite element programs (NIKE3D and INGRID) originally developed by the U.S. Dept. of Energy Lawrence Livermore National Laboratory (LLNL). These programs have been modified by the FAA for pavement analysis and are distributed according to terms of a Software Agreement between the FAA and LLNL.
Contact: For questions, comments or further information concerning this program, please contact Dr. David R. Brill FAA Airport Technology R&D Branch, AJP-6312.
Minimum requirements: Windows 2000 Service Pack 3 or higher (Windows XP recommended), 256 MB RAM (512 MB recommend) and Microsoft .NET Runtime.
| Windows (32-bit) | Run from the Web |
| FAARFIELD v1.300 | FAARFIELD v1.102 |
FEAFAA
About: FEAFAA (Finite Element Analysis - FAA) was developed by the FAA Airport Technology R&D Branch as a stand-alone tool for 3D finite element analysis of multiple-slab rigid airport pavements and overlays. It is useful for computing accurate responses (stresses, strains and deflections) of rigid pavement structures to individual aircraft landing gear loads. FEAFAA is not intended for use as an FAA design procedure. For performing pavement thickness designs in conformance with FAA standards.
Notes: FEAFAA makes use of the 3D finite element programs (NIKE3D and INGRID) originally developed by the U.S. Dept. of Energy Lawrence Livermore National Laboratory (LLNL). These programs have been modified by the FAA for pavement analysis and are distributed according to terms of a Software Agreement between the FAA and LLNL.
Contact: For further information, please contact Dr. David R. Brill
Minimum requirements: Windows 2000 or higher (Windows XP recommended), 256MB RAM (512 MB recommended).
| Windows (32-bit) | Run from the Web |
| FEAFAA v1.10 | FEAFAA |
LEDFAA
Advisory Circular AC 150/5320-16 Airport Pavement Design for the Boeing
777 Airplane has been canceled and the layered elastic based design
procedures implemented in LEDFAA for that advisory circular have been
incorporated in Change 3 of AC 150/5320-6D Airport Pavement Design and
Evaluation. Version 1.2 of LEDFAA has also been canceled and is replaced
by version 1.3. Version 1.3 is approved for use in all applications where
version 1.2 was applicable and may also be used for designs in which the
aircraft mix does not include a Boeing 777, or other aircraft with six-wheel
landing gears.
About: LEDFAA is a computer program for airport pavement design. Major changes in this release include the addition of the Airbus A-380 aircraft and A340-500/600 aircraft, revision of the failure criteria for flexible pavements, and replacement of the layered elastic computational program JULEA with the program LEAF developed by the FAA. Results from version 1.3 should be similar, although not exactly so, to results obtained in version 1.2. A hard copy of the user's manual was included with AC 150/5320-16 as an appendix. This hard copy is no longer available. The help file included with LEDFAA 1.3 is an updated version of the user's manual and may be printed if a hard copy is desired.
Minimum requirements: Windows 2000 Service Pack 3 or higher (Windows XP recommended).
| Windows (32-bit) | Run from the Web |
| LEDFAA v1.3 | Not Available |
COMFAA
About: COMFAA is a program for computing flexible and rigid Aircraft Classification Numbers (ACNs) and pavement thickness.
Notes: The program is used for pavement thickness design in the procedure required for PCN determination by the technical evaluation method, as described in FAA Advisory Circular 150/5335-5A "Standardized Method of Reporting Airport Pavement Strength - PCN." The program now has an option to select the new ICAO alpha factors for flexible pavements. A340-500/600 aircraft are not yet included in the internal aircraft library. They will be included when definitive belly gear load characteristics are provided to the FAA. In the mean time, please consult the Airbus airport planning manual to obtain ACN values or gear dimensions and loading.
ATT02 P-32 COMFAA
COMFAA - Airport Pavement Thickness and Strength Evaluation
Report on New Alpha Factor Curves in COMFAASource Code: COMFAA Source Code
Contact: For further information, please contact Dr. David Brill
Minimum requirements: Windows 2000 or higher (Windows XP recommended).
| Windows (32-bit) | Run from the Web |
| COMFAA v2.0 | COMFAA |
BAKFAA
About: BAKFAA with LEAF, is a software program for backcalculation of FWD data and computation of airport pavement load responses by layered elastic analysis.
Notes: The FAA does not officially support the program as a standard nor sanction any use of the results. This software program is offered free of charge and is provided for evaluation purposes only.
Format for External Aircraft Data File Conf Paper P-26 LEA Equations LEAF Chapter 9-9-01
Comparison of LEA ProgramsSource Code: BAKFAA
Contact: If you have comments or issues with this software program, please contact the NDT project lead.
Minimum requirements: Windows 2000 Professional Service Pack 4 or higher (Windows XP recommended.)
Disclaimer: This program is furnished by the Government and is accepted and used by the recipient with the express understanding that the United States Government makes no warranties, expressed or implied, concerning the accuracy, completeness, reliability, usability, or suitability of any particular purpose of the information or the data contained in this program or furnished in connection therewith, and the United States Government shall be under no liability whatsoever to any person by reason of any use thereof. This program belongs to the government. Therefore, the recipient further agrees not to assert any proprietary rights therein or to represent this program to anyone as other than a government program.
| Windows (32-bit) | Run from the Web |
| BAKFAA | BAKFAA |
PROFAA
About: ProFAA is a Federal Aviation Administration's computer program for computing pavement elevation profile roughness indexes. Data analysis performed by the program includes the simulation of the following devices or procedure and the calculation of, Straight Edge, Boeing Bump, International Roughness Index (IRI), California Profilograph (PI), and RMS Bandpass Indexes.
| Windows (32-bit) | Run from the Web |
| Not Available | PROFAA |