§ 25.781. Cockpit control knob shape.
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/us/cfr/t14/s§ 25.781·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Cockpit control knobs must conform to the general shapes (but not necessarily the exact sizes or specific proportions) in the following figure: [Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-72, 55 FR 29779, July 20, 1990]