SAE AIR1093B-2020 PDF

Scope: 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.

SAE AIR1093B-2020 history

2020 SAE AIR1093B-2020 Numeral, Letter and Symbol Dimensions for Aircraft Instrument Displays
2008 SAE AIR1093A-2008 Numeral, Letter and Symbol Dimensions for Aircraft Instrument Displays
2002 SAE AIR1093A-2002 Numeral, Letter and Symbol Dimensions for Aircraft Instrument Displays
1991 SAE AIR1093-1991 NUMERAL, LETTER AND SYMBOL DIMENSIONS FOR AIRCRAFT INSTRUMENT DISPLAYS
1969 SAE AIR1093-1969 Numeral@ Letter and Symbol Dimensions for Aircraft Instrument Displays