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GB/T 39782-2021Specifications for safe firing area map-drawing of anti-aircraft gun at weather modification operating spots (English PDF)

人工影响天气高炮作业点安全射界图绘制规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 30, 2021

Implementation date

August 1, 2021

Scope

GB/T 39782-2021 is the English-translated version of 人工影响天气高炮作业点安全射界图绘制规范.

GB/T 39782-2021 fixes how the safe firing area map of a weather modification gun site is drawn. It sets the basic requirements of the drawing, the way the safe firing boundary is chosen, the compilation and plotting of the map, its review and its transfer to the ground.

It applies to the 37 mm and 57 mm anti-aircraft guns used for weather modification, where the map is what keeps a shell away from a village. Meteorological services and the operators of the sites use it. Issued on 30 April 2021, it has applied since 1 August 2021.

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Document preview — GB/T 39782-2021

National Standard of the People's Republic of China

ICS
07.060
Classification
A 47

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Terms and definitions
  • 4 Basic requirements
  • 5 Safe shooting range selection
  • 6 Compilation of safe shooting boundaries
  • 7 Review of safe shooting boundary map
  • 8 Ground plotting of the safe firing boundary map

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the basic requirements for the drawing of the safe firing boundary map of the artificial weather influencing artillery operating point, the selection of the safe firing boundary, and the compilation of the safe firing boundary map. Plotting, review and ground plotting.

This standard is applicable to the drawing of the safe firing boundary map of the 37mm and 57mm anti-aircraft artillery operating points for artificial weather modification.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 148-1997 Printing, writing and drawing paper format size

GB/T 2260 Administrative division code of the People's Republic of China

QX/T 151 Terminology for weather modification operations

3 Terms and definitions QX/T 151 and the following

terms and definitions apply to this document.

3.1 Safefiringareaofanti-aircraftgun

In order to prevent unexploded projectiles from falling into densely populated areas or safety areas preset by important facilities.

Note: Densely populated areas refer to towns, villages, schools, etc.; important facilities refer to oil depots, chemical plants, high-speed railways, airports, cultural relics and military facilities, etc.

4 Basic requirements

4.1 Drawing a safe shooting boundary map should clearly draw the base map, safe shooting range, compilation method and audit requirements.

4.2 The latitude, longitude and altitude of the antiaircraft artillery operating point should be measured with the center of the antiaircraft artillery firing platform as the measurement reference point.

The height measurement is accurate to meters (m). The location of the operating point on the drawing base map should be consistent with the actual location.

4.3 The safe shooting range map should include the base map (6.1), the horizontal distance circle (6.2), the shooting range circle (6.3), the azimuth line segment (6.4), and the safe shooting area (6.5), safe shooting range number (6.6), safe shooting range table (6.7), labeling information (6.8) and other elements. See Appendix A for examples.

4.4 Before changing different types and different ranges of projectiles, the safe firing boundary map should be redrawn.

4.5 The completed safe firing boundary map should be plotted on the antiaircraft artillery firing platform.

5 Safe shooting range selection

5.1 Selection rules

The safe firing boundary should be centered on the antiaircraft artillery operating point, selected within the maximum theoretical range of the antiaircraft artillery, and the following rules should be observed.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

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