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SAE AIR1093 Rev B

Current Revision

Numeral, Letter and Symbol Dimensions for Aircraft Instrument Displays

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The purpose of this AIR is to provide recommendations for the minimum dimensions of characters and symbols used in aircraft instrument dials and panel displays as related to the conditions stated in para. 3 . Numerous variables influence the legibility of aircraft instrument dial characters. This situation makes it very difficult, if not impossible, to establish an exact act of rules for optimizing all installations. Character size, one of the important considerations, can be optimized where adequate dial space exists. Usually this is not the case and the designer is faced with placing the information in a limited space while continuing to strive for error-free legibility. Appropriate minimum size requirements have been stated herein for guidance in air transport use.

SDO SAE: SAE International
Document Number AIR1093
Publication Date April 1, 2020
Language en - English
Page Count 5
Revision Level B
Supercedes
Committee
Publish Date Document Id Type View
April 1, 2020 AIR1093B Revision
May 2, 2002 AIR1093A Revision
Dec. 1, 1969 AIR1093 Revision