DATA ITEM DESCRIPTION
Title: GAS TURBINE ENGINE STEADY STATE AND TRANSIENT
PERFORMANCE PRESENTATIONS FOR COMPUTER PROGRAMS
Num
ber: DI-MSSM-81966A Approval Date: 20150511
AMSC Number: F9544 Limitation: N/A
DTIC Applicable: No GIDEP Applicable: No
Preparing Activity: 11 (AFLCMC/EZFP) Project Number: MSSM-2015-001
Applicable Forms: N/A
Use/Relationship: This Data Item Description (DID) is related to DI-TMSS-81515, User's Manual for
Gas Turbine Engine Steady-State and Transient Performance for Digital Computer Programs.
a. Engine steady state and transient computer programs (herein referred to as Models) provide a detailed
description of the aero-thermodynamic cycle performance and stability characteristics of the Propulsion
System. These Models will be provided to the Using Service for evaluation of Propulsion System
performance and stability characteristics during source selections, evaluations/studies during the
development program, and post-qualification modification evaluations throughout the life of the program.
b. This DID contains the format, content, and intended use information for data deliverable resulting
from the work task described in paragraphs 3.2.1 and 4.2.1 of JSSG-2007, Engines Joint Service
Specification Guide.
Requirements:
1. Reference Documents. The applicable issue of the documents cited herein, including their approval
dates and dates of any applicable amendments, notices, and revisions, shall be as specified in the contract.
2. Format. The Models shall be formatted as follows:
2.1 Except as modified herein, the Models shall conform to the Society of Automotive Engineers
Aerospace Standards AS681J, “Gas Turbine Engine Performance Presentation for Computer Programs”
and AS755E, “Aircraft Propulsion System Performance Station Designation and Nomenclature”.
(SAE documents are available from SAE International, 400 Commonwealth Drive, Warrendale PA
15096-0001; 1-877-606-7323; www.sae.org
.)
2.2 The Models shall be written and provided in either FORTRAN or Numerical Propulsion System
Simulation (NPSS) source languages, and shall be capable of being compiled and executed on the
computer system and platform identified by the Using Service.
2.3 The Models shall carry suitable identification including the engine model designation, manufacturer’s
name, engine specification number, revision date, and Model identification number.
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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