SAE ARP4191D

1 SCOPE
2 REFERENCES
    2.1 Applicable Documents
          2.1.1 SAE Publications
3 GENERAL REQUIREMENTS
    3.1 Program Operation
4 PROGRAMMING PRACTICES
    4.1 Program Language
5 PROGRAM CAPABILITIES
    5.1 Ram Pressure Recovery
6 INPUT/OUTPUT
    6.1 Program Interface Definition
    6.2 Input
          6.2.1 The Fixed Input Labeled Common Block FIXIN
          6.2.2 The Variable Input Labeled Common Block
                  VARIN
          6.2.3 The Expanded Input Labeled Common Block
                  EXPIN
          6.2.4 The Character Fixed Input Labeled Common
                  Block CHRIN
    6.3 Output
          6.3.1 The Fixed Output Labeled Common Block FIXOUT
          6.3.2 The Variable Output Labeled Common Block
                  VAROUT
          6.3.3 The Expanded Output Labeled Common Block
                  EXPOUT
          6.3.4 The Fixed Character Output Labeled Common
                  Block CHROUT
          6.3.5 The Expanded Character Output Labeled common
                  Block CHREXP
          6.3.6 Printout
7 PROGRAM IDENTIFICATION
8 PROGRAM CHECKOUT
9 PROGRAM REVISIONS
10 OPTIONAL FEATURES

Specifies method for digital computer programs for gas turbine engine, steady-state or transient, performance to be written using the FORTRAN 77 Language.

This SAE Aerospace Recommended Paractice (ARP) provides a method for digital computer programs for gas turbine engine performance, steady-state or transient, performance to be written using the FORTRAN 77 language.When it is agreed between the program User and Supplier that a particular program shall be supplied in FORTRAN 77, it is recommended that this ARP be used in conjunction with AS681 for steady-state and transient programs.This ARP also describes how to take advantage of the FORTRAN 77 CHARACTER storage to extend the information interface between the calling program and the engine subroutine.The ARP has the same major section numbers as AS681 to facilitate its use with this document. The information given in each section of this ARP is additional to that given in AS 681.