This recommended practice is intended to recommend the basic shapes and dimensions for knobs used in aircraft. Two basic types of knobs@ the bar shape and the round shape@ are described@ as well as several widely used variations of these two basic shapes. PURPOSE: The purpose of this document is to recommend shapes and sizes of knobs which will guide the design of these components toward eventual uniformity.
SAE ARP493B-2017 history
2017SAE ARP493B-2017 Knobs@ Control Aircraft@ Recommended Design
2011SAE ARP493A-2011 Knobs, Control Aircraft, Recommended Design
2002SAE ARP493A-2002 Knobs, Control Aircraft, Recommended Design
2001SAE ARP493A-2001 Knobs@ Control Aircraft@ Recommended Design
1991SAE ARP493-1991 KNOBS, CONTROL AIRCRAFT, RECOMMENDED DESIGN
1964SAE ARP493-1964 Knobs@ Control Aircraft@ Recommended Design