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Military Aircraft Application
MIL-STD-1553B: U. S. military aircraft were the first to use the data-bus architecture, especially to handle the large amount of data for FBW and combat operations. In the United Kingdom, it is covered by DEF STAN 00-18. MIL-STD-1773 is the fiber-optics version of MIL-STD-1553B and STANAG 3838 is the NATO standard for bus architecture.
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Table 15.11. Aircraft avionics items
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Civil Aircraft Application
ARINC 429 (originated in the 1970s): The success of the military standard was followed by civil standards, which began in a simplified manner. The Airbus 320 was the first large transport aircraft to use a full FBW system. ARINC 629 is the updated version that replaces ARINC 429.
Line replacement units (LRUs) are a convenient hardware design to facilitate installation and maintenance of electrical and avionics transmissions and connections following the bus standards. LRUs are constructed in the modular concept as a subassembly and then installed on an aircraft. LRUs are also standardized to comply with the bus architecture.
Aircraft communication and navigation equipment is part of an avionics package. The components of a typical civil aircraft avionics package are listed in Table 15.11.
Typical antenna locations for aircraft communication and navigation are shown in Figure 15.26. Antennas are installed in the symmetrical plane of an aircraft. Surveillance aircraft have a specific large housing for special-purpose avionics.
