Previous Versions of Airport Design Software

Airport design software supports pavement design and pay reductions for airport pavement projects. The following versions are superseded.

Airport Pavement Design
(select links in this column to access software)
Description/Instructions Date
COMFAA 3.0 COMFAA 3.0, as introduced in version B of AC 150/5335-5, is the recommended method to determine airport runway, taxiway, and apron pavement strength with the Aircraft Classification Number - Pavement Classification Number (ACN-PCN) method. The software is capable of calculating Aircraft Classifications Numbers in accordance with the International Civil Aviation Organization (ICAO) procedure.
  • Support Spreadsheet for COMFAA 3.0 (MS Excel, 1.1 MB) (Updated 8/18/2017)
    Facilitates flexible and rigid pavement information required in COMFAA 3.0 for PCN calculations.
Updated 8/21/2017
FAARFIELD 1.42 FAARFIELD 1.42 is the standard thickness design software accompanying AC 150/5320-6F Airport Pavement Design and Evaluation. FAARFIELD 1.42 replaces all previous versions of FAARFIELD. 9/18/2017
Flexible Pavement Design (MS Excel) Flexible Pavement Design Manual (PDF) (Updated 7/16/2002) Updated 10/31/2005
Rigid Pavement Design (MS Excel) Rigid Pavement Design Manual (PDF) (Updated 7/16/2002) Updated 4/30/2004
Layered Elastic Pavement Design Version 1.3 (Zip) Layered elastic design software discussed in Chapter 7 of AC 150/5320-6, Airport Pavement Design and Evaluation. Software updated in June 2004 to include new commercial aircraft models and many general aviation aircraft. Updated 7/26/2004
Last updated: Monday, August 1, 2022