Sunday, 1 November 2026
Standing Office 81 (SOVNPA 81) emblem Viet Nam NVietnam National Presiding Agency
on Countering the Proliferation of Weapons of Mass Destruction
Standing Office 81

9.D.4.Other "software" as follows:

List
Wassenaar Arrangement – List of Dual-Use Goods and Technologies – WA-LIST (25) 1
Corresponding EU entry
9D004
a. 2D or 3D viscous "software", validated with wind tunnel or flight test data required for detailed engine flow modelling;
b. "Software" for testing aero gas turbine engines, assemblies or components, having all of the following:
1. Specially designed for testing any of the following:
a. Aero gas turbine engines, assemblies or components, incorporating "technology" specified in 9.E.3.a., 9.E.3.h. or 9.E.3.i.; or
b. Multi-stage compressors providing either bypass or core flow, specially designed for aero gas turbine engines incorporating "technology" specified in 9.E.3.a. or 9.E.3.h.; and
2. Specially designed for all of the following:
a. Acquisition and processing of data, in real time; and
b. Feedback control of the test article or test conditions (e.g., temperature, pressure, flow rate) while the test is in progress;
Note 9.D.4.b. does not specify software for operation of the test facility or operator safety (e.g., overspeed shutdown, fire detection and suppression), or "production", repair or maintenance acceptance-testing limited to determining if the item has been properly assembled or repaired.
c. "Software" specially designed to control directional-solidification or single-crystal material growth in equipment specified in 9.B.1.a. or 9.B.1.c.;
d. Not used since 2011
e. "Software" specially designed or modified for the operation of items specified in 9.A.12.;
f. "Software" specially designed to design the internal cooling passages of aero gas turbine engine blades, vanes and "tip shrouds";
g. "Software" having all of the following:
1. Specially designed to predict aero thermal, aeromechanical and combustion conditions in aero gas turbine engines; and
2. Theoretical modelling predictions of the aero thermal, aeromechanical and combustion conditions, which have been validated with actual aero gas turbine engine (experimental or production) performance data.