7DSoftware

7D Software

7D001 “Software” specially designed or modified for the “development” or “production” of equipment specified by 7A. or 7B.

7D002 “Source code” for the operation or maintenance of any inertial navigation equipment, including inertial equipment not specified by 7A003 or 7A004, or Attitude and Heading Reference Systems (‘AHRS’).

Note: 7D002 does not apply to “source code” for the “use” of gimballed ‘AHRS’.

‘AHRS’ generally differ from Inertial Navigation Systems (INS) in that an ‘AHRS’ provides attitude and heading information and normally does not provide the acceleration, velocity and position information associated with an INS.

7D003 Other “software” as follows:

a. “Software” specially designed or modified to improve the operational performance or reduce the navigational error of systems to the levels specified by 7A003, 7A004 or 7A008;

b. “Source code” for hybrid integrated systems which improves the operational performance or reduces the navigational error of systems to the level specified by 7A003 or 7A008 by continuously combining heading data with any of the following:

1. Doppler radar or sonar velocity data;

2. Global navigation satellite systems (i.e., GPS or GLONASS) reference data; or

3. Data from “Data‑Based Referenced Navigation” (“DBRN”) systems;

N.B.: For flight control “source code”, see 7D004.

e. Computer‑Aided‑Design (CAD) “software” specially designed for the “development” of “active flight control systems”, helicopter multi‑axis fly‑by‑wire or fly‑by‑light controllers or helicopter “circulation controlled anti‑torque or circulation‑controlled direction control systems”, whose “technology” is specified by 7E004.b.1., 7E004.b.3. to 7E004.b.5., 7E004.b.7., 7E004.b.8., 7E004.c.1. or 7E004.c.2.

7D004 “Source code” incorporating “development” “technology” specified by 7E004.a.2., 7E004.a.3., 7E004.a.5., 7E004.a.6. or 7E004.b., for any of the following:

a. Digital flight management systems for “total control of flight”;

b. Integrated propulsion and flight control systems;

c. “Fly‑by‑wire systems” or “fly‑by‑light systems”;

d. Fault‑tolerant or self‑reconfiguring “active flight control systems”;

f. Air data systems based on surface static data; or

g. Three dimensional displays.

Note: 7D004. does not apply to “source code” associated with common computer elements and utilities (e.g., input signal acquisition, output signal transmission, computer program and data loading, built‑in test, task scheduling mechanisms) not providing a specific flight control system function.

7D005 “Software” specially designed to decrypt Global Navigation Satellite Systems (GNSS) ranging code designed for government use.