The Export of Goods (Control) Order 1994

Equipment, Assemblies and Components

7A—7A001 Accelerometers designed for use in inertial navigation or guidance systems and having any of the following characteristics, and specially designed components therefor(1):

a. A bias stability of less (better) than 130 micro g with respect to a fixed calibration value over a period of one year;

b. A scale factor stability of less (better) than 130 ppm with respect to a fixed calibration value over a period of one year;

c. Specified to function at linear acceleration levels exceeding 100 g.

7A002 Gyros having any of the following characteristics, and specially designed components therefor(2):

a. A drift rate stability, when measured in a 1 g environment over a period of three months and with respect to a fixed calibration value, of:

1. Less (better) than 0.1° per hour when specified to function at linear acceleration levels below 10 g; or

2. Less (better) than 0.5° per hour when specified to function at linear acceleration levels from 10 g to 100 g inclusive;

b. Specified to function at linear acceleration levels above 100 g.

7A003 Inertial navigation systems (gimballed and strapdown) and inertial equipment for attitude, guidance or control having any of the following characteristics, and specially designed components therefor(3):

a. For aircraft:

1. Navigation error (free inertial) of 0.8 nautical mile per hour (50% Circular Error Probable (CEP)) or less (better) subsequent to normal alignment;

2. Not certified for use on civil aircraft by civil aviation authorities; or

3. Specified to function at linear acceleration levels exceeding 10 g;

b. For land or spacecraft:

1. Navigation error (free inertial) of 0.8 nautical mile per hour (50% CEP) or less (better) subsequent to normal alignment; or

2. Specified to function at linear acceleration levels exceeding 10 g.

7A004 Gyro-astro compasses, and other devices which derive position or orientation by means of automatically tracking celestial bodies or satellites, with an azimuth accuracy of equal to or less (better) than 5 seconds of arc(4).

7A005 Global Positioning Satellite (GPS) receiving equipment having either of the following characteristics, and specially designed components therefor(5):

a. Employing encryption/decryption; or

b. A null-steerable antenna.

7A006 Airborne altimeters(6) operating at frequencies other than 4.2 to 4.4 GHz inclusive, having either of the following characteristics(7):

a. Power management; or

b. Using phase shift key modulation.

• Note: For automatic pilots for underwater vehicles, see Category 8, for radar, see Category 6.

7A101 Accelerometers, other than those specified in entry 7A001, with a threshold of 0.05 g or less, or a linearity error within 0.25% of full scale output, or both, which are designed for use in inertial navigation systems or in guidance systems of all types and specially designed components therefor.

• Note: This entry does not specify accelerometers which are specially designed and developed as Measurement While Drilling (MWD) sensors for use in downhole well service operations.

7A102 All types of gyros, other than those specified in entry 7A002, usable in missiles, with a rated drift rate stability of less than 0.5° (1 sigma or rms) per hour in a 1 g environment and specially designed components therefor.

7A103 Instrumentation, navigation and direction finding equipment and systems, other than those specified in entry 7A003, as follows; and specially designed components therefor:

a. Inertial or other equipment using accelerometers or gyros specified in entries 7A001, 7A002, 7A101 or 7A102 and systems incorporating such equipment;

b. Integrated flight instrument systems, which include gyrostabilisers or automatic pilots, designed or modified for use in systems specified in entries 9A004 or 9A104.

7A104 Gyro-astro compasses and other devices, other than those specified in entry 7A004, which derive position or orientation by means of automatically tracking celestial bodies or satellites and specially designed components therefor.

7A105 Global Positioning Systems (GPS) or similar satellite receivers, other than those specified in entry 7A005, capable of providing navigation information under the following operational conditions and designed or modified for use in systems specified in entry 9A004 or 9A104;

a. At speeds in excess of 515 m/s; and

b. At altitudes in excess of 18 km.

7A106 Altimeters, other than those specified in entry 7A006, of radar or laser radar type, designed or modified for use in systems specified in entry 9A004 or 9A104.

7A115 Passive sensors for determining bearing to specific electromagnetic source (direction finding equipment) or terrain characteristics, designed or modified for use in systems specified in entry 9A004 or 9A104.

• Note: This entry includes sensors for the following equipment:

  a.

  Terrain contour mapping equipment;

  b.

  Imaging sensor equipment;

  c.

  Interferometer equipment.

7A116 Flight Control systems, as follows; designed or modified for systems specified in entry 9A004 or 9A104:

a. Hydraulic, mechanical, electro-optical, electro-mechanical or fly by wire types;

b. Attitude control equipment.

7A117 Guidance sets, usable in missiles, capable of achieving system accuracy of 3.33% or less of the range (e.g., a CEP of 10 km or less at a range of 300 km).

(1)

See also entry 7A101

(2)

See also entry 7A102.

(3)

See also entry 7A102.

(4)

See also entry 7A104.

(5)

See also entry 7A105.

(6)

See Category 6 for radar and Category 8 for automatic pilots for underwater vehicles.

(7)

See also entry 7A106.