page_title: SG2 Shareable (Fire Control) Software Suite (S4)
section_title: NATO Standardization Agreements (STANAGS) and Supporting Research
hierarchical_section_title: SG2 Shareable (Fire Control) Software Suite (S4) / NATO Standardization Agreements (STANAGS) and Supporting Research
caption_attribution_description: This file was uploaded with Commonist. NATO Standardization Agreements (STANAGs) that are a basis for S4 Technology
context_page_description: The NATO Army Armaments Group Integrated Capability Group Indirect Fires, formerly Land Group 4, and their Sub Group 2 on Surface to Surface Ballistics has created a widely used set of shareable fire control software using the Ada programming language. This product is known as the SG2 Shareable (Fire Control) Software Suite (S4) and is sometimes abbreviated as S⁴ when referenced.
  Fire-control system developers and most of the international ballistics communities are familiar with the mature NATO Armaments Ballistic Kernel and other software component items that have emerged from the NABK development effort. The collection of these software items has been enhanced into the “suite” of NATO shareable fire control software.
  Significant development effort occurs in Aberdeen, Maryland, USA in the Firing Tables and Ballistics Division, Armaments Research, Development and Engineering Center with contributions from a variety of agencies within participating NATO nations.
context_section_description: The S4 implements a variety of NATO Standardization Agreements (STANAGs) including STANAG 4355 and STANAG 6022.
  A number of papers and presentations have been published, such as a formal description of the early history of the suite and a later presentation in the International Symposium of Ballistics (ISB) forum sponsored by the International Ballistics Society (IBS).
  http://www.hsu-hh.de/mit/index_tQ8Jt6q7o77XYTKW.html (S4 testing research and related contributions by Germany)
  http://www.hsu-hh.de/mit/index_6ErpEIxUgVmppHGV.html (Crest Clearance algorithm contributions by Germany)
caption: STANAG which are the basis for S4 technology
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